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Publications (61)

cond-mat.supr-con2023

Single crystal synthesis, structure, and magnetism of Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O

P. Puphal, M. Y. P. Akbar, M. Hepting +4

The recent claim of superconductivity above room temperature in Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O with 0.9 < $x$ < 1 (referred to as LK-99) has sparked considerable interest. To minim…

cond-mat.supr-con2018

Microscopic investigation of the weakly correlated noncentrosymmetric superconductor SrAuSi $_{3}$

N. Barbero, P. K. Biswas, M. Isobe +6

SrAuSi $_{3}$ is a noncentrosymmetric superconductor (NCS) with $T_{c}$ = 1.54 K, which to date has been studied only via macroscopic techniques. By combining nuclear magnetic resonance…

cond-mat.str-el1999

Resonant Raman scattering in NaV2O5 as a probe of its electronic structure

M. J. Konstantinovic, Z. V. Popovic, T. Ruf +4

In order to investigate the origin of the phase transition observed in NaV $_{2}$ O $_{5}$ , as well as its electronic structure, we have measured Raman intensities as a function of the la…

cond-mat.str-el2021

Formation of orbital molecules on a pyrochlore lattice induced by A-O bond covalency

A. Krajewska, A. Yaresko, J. Nuss +15

The pyrochlore ruthenate In $_{2}$ Ru $_{2}$ O $_{7}$ displays a subtle competition between spin-orbital entanglement and molecular orbital formation. At room temperature, a spin-orbit-entang…

cond-mat.str-el2018

Infrared phonon spectra of quasi-one-dimensional Ta $_{2}$ NiSe $_{5}$ and Ta $_{2}$ NiS $_{5}$

T. I. Larkin, R. D. Dawson, M. HÃ¶ppner +6

Using a combination of infrared ellipsometry, time-domain terahertz spectroscopy, and far-infrared reflectometry we have obtained the $a c$ -plane complex dielectric function of mono…

cond-mat.str-el2020

Almost pure $J_{eff} = 1/2$ Mott state of In $_{2}$ Ir $_{2}$ O $_{7}$ in the limit of reduced inter-site hopping

A. Krajewska, T. Takayama, R. Dinnebier +4

The pyrochlore iridate In $_{2}$ Ir $_{2}$ O $_{7}$ is a strong $J_{eff} = 1/2$ Mott insulator with frustrated magnetism. Despite the large trigonal crystal field, a small admixture…

cond-mat.str-el2012

Robustness of basal-plane antiferromagnetic order and the $J_{e f f} = 1/2$ state in single-layer iridate spin-orbit Mott insulators

S. Boseggia, R. Springell, H. C. Walker +6

The magnetic structure and electronic groundstate of the layered perovskite Ba2IrO4 have been investigated using x-ray resonant magnetic scattering (XRMS). Our results are compared…

cond-mat.str-el1998

Lattice vibrations of alpha'-NaV2O5

M. N. Popova, A. B. Sushkov, S. A. Golubchik +6

We have measured far infrared reflectance and transmittance spectra as well as Raman scattering spectra of Î±'-NaV2O5 single crystals for all the principal polarizations. The tempe…

cond-mat.str-el2004

Orbital and spin chains in ZnV2O4

S. -H. Lee, D. Louca, H. Ueda +8

Our powder inelastic neutron scattering data indicate that \zvo is a system of spin chains that are three dimensionally tangled in the cubic phase above 50 K due to randomly occupi…

cond-mat.mtrl-sci2016

Extrinsic Proton NMR Studies of Mg(OH) $_{2}$ and Ca(OH) $_{2}$

Y. Itoh, M. Isobe

We studied narrow $^{1}$ H NMR spectra of Mg(OH) $_{2}$ and Ca(OH) $_{2}$ powders at 100 $-$ 355 K and 42 $-$ 59 MHz using pulsed NMR techniques. The Fourier transformed NMR spectra of the prot…

cond-mat.str-el2001

Lattice vibrations of alpha'-NaV_2O_5 in the low-temperature phase. Magnetic bound states?

M. N. Popova, A. B. Sushkov, S. A. Klimin +4

We report high resolution polarized infrared studies of the quarter-filled spin ladder compound alpha'-NaV_2O_5 as a function of temperature (5K <= T <= 300K). Numerous new modes w…

cond-mat.str-el2024

Metastable ordered states induced by low temperature annealing of Î´-Ag2/3V2O5

T. Kubo, K. Kojima, N. Katayama +5

In Î´-Ag2/3V2O5 with charge degrees of freedom in V, it is known that the charge ordering state and physical properties of V that appear at low temperatures depend strongly on the…

cond-mat.str-el2021

Tunneling-tip-induced collapse of the charge gap in the excitonic insulator Ta $_{2}$ NiSe $_{5}$

Q. He, X. Que, L. Zhou +3

Tuning many-body electronic phases by an external handle is of both fundamental and practical importance in condensed matter science. The tunability mirrors the underlying interact…

cond-mat.supr-con2025

Floating zone growth at high oxygen pressures in Ruddlesden-Popper bilayer nickelate Y $_{y}$ Sr $_{3 - y}$ Ni $_{2 - x}$ Al $_{x}$ O $_{7 - I^´}$

H. Yilmaz, P. Sosa-Lizama, M. Knauft +7

With the discovery of superconductivity under pressure in the Ruddlesden-Popper (RP) bilayer La $_{3}$ Ni $_{2}^{2.5 +}$ O $_{7}$ and trilayer La $_{4}$ Ni $_{3}^{2.66 +}$ O $_{10}$ , a new field of nick…

cond-mat.supr-con2011

Pressure-induced changes in the magnetic and valence state of EuFe2As2

K. Matsubayashi, K. Munakata, N. Katayama +9

We present the results of electrical resistivity, ac specific heat, magnetic susceptibility, X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) of the…

physics.plasm-ph2024

Charge-exchange measurements of high-energy fast ions in LHD using negative-ion neutral beam injection

W. H. J. Hayashi, W. W. Heidbrink, C. M. Muscatello +10

A new sightline geometry for the fast-ion D-alpha (FIDA) diagnostic on the Large Helical Device (LHD) has been confirmed to measure signals for high-energy fast ions produced by ne…

cond-mat.str-el2001

Low-energy excitations in NaV2O5

M. J. Konstantinovic, J. C. Irwin, M. Isobe +1

In the (ab) polarized Raman scattering spectra of NaV2O5 single crystals, measured with 647.1 nm laser line at T < Tc, we found two modes at 86, and 126 cm-1 not previously reporte…

cond-mat.str-el2002

Optical properties of NaxV2O5

M. J. Konstantinovic, Z. V. Popovic, V. V. Moshchalkov +4

The optical properties of sodium-deficient NaxV2O5 (0.85 < x <1) single crystals are analyzed in the wide energy range, from 0.012 to 4.5 eV, using ellipsometry, infrared reflectiv…

cond-mat.str-el2000

Infrared and Raman spectra of LiV2O5 single crystals

Z. V. Popovic, R. Gajic, M. J. Konstantinovic +5

The phonon dynamics of LiV2O5 single crystals is studied using infrared and Raman spectroscopy techniques. The infrared-active phonon frequencies and dielectric constants are obtai…

cond-mat.str-el1997

Raman, infrared and optical spectra of the spin-Peierls compound NaV_2O_5

S. A. Golubchik, M. Isobe, A. N. Ivlev +5

We have measured polarized spectra of Raman scattering, infrared and optical transmission of NaV_2O_5 single crystals above the temperature of the spin-Peierls transition Tsp=35 K.…

cond-mat.str-el2023

Phase formation in hole- and electron-doped rare-earth nickelate single crystals

P. Puphal, V. Sundaramurthy, V. Zimmermann +5

The recent discovery of superconductivity in hole-doped infinite-layer nickelates has triggered a great interest in the synthesis of novel nickelate phases, which have primarily be…

cond-mat.str-el2000

Raman Scattering from Magnetic Excitations in the Spin Ladder Compounds CaV2O5 and MgV2O5

M. J. Konstantinovic, Z. V. Popovic, M. Isobe +1

We present the Raman-scattering spectra of CaV2O5 and MgV2O5. The magnetic contribution in the Raman spectra of CaV2O5 is found in the form of a strong asymmetric line, centered at…

cond-mat.str-el1999

Finite Temperature Effects in One-dimensional Mott-Hubbard Insulator: Angle-Resolved Photoemission Study of Na_{0.96}V_{2}O_{5}

K. Kobayashi, T. Mizokawa, A. Fujimori +4

We have made an angle-resolved photoemission study of a one-dimensional (1D) Mott-Hubbard insulator Na_{0.96}V_{2}O_{5} and found that the spectra of the V 3d lower Hubbard band ar…

physics.plasm-ph2019

Validating the ASCOT modelling of NBI fast ions in Wendelstein 7-X stellarator

S. ÃkÃ¤slompolo, P. Drewelow, Y. Gao +37

The first fast ion experiments in Wendelstein 7-X were performed in 2018. They are one of the first steps in demonstrating the optimised fast ion confinement of the stellarator. Th…

cond-mat1998

Magnetic excitation spectra of $N a V_{2} O_{5}$

K. Ladavac, M. J. Konstantinovic, A. Belic +4

We present low temperature Raman spectra of $N a V_{2} O_{5}$ single crystal. The assignation of the observed modes is done on the basis of Monte Carlo calculation of excited states of He…

cond-mat.str-el2013

Orbital occupancies and the putative jeff = 1/2 groundstate in Ba2IrO4: a combined oxygen K edge XAS and RIXS study

M. Moretti Sala, M. Rossi, S. Boseggia +9

The nature of the electronic groundstate of Ba2IrO4 has been addressed using soft X-ray absorption and inelastic scattering techniques in the vicinity of the oxygen K edge. From th…

cond-mat.str-el2000

High frequency ESR investigation on dynamical charge disproportionation and spin gap excitation in NaV_2O_5

H. Nojiri, S. Luther, M. Isobe +2

A significant frequency dependence of the ESR line width is found in NaV_2O_5 between 34-100 K and the line width increases as the resonance frequency is increased from 95 GHz to 7…

cond-mat.str-el1999

Critical behavior in NaV2O5: the case of dielectric function and the aspect of universality

S. V. Demishev, A. A. Pronin, N. E. Sluchanko +3

Temperature dependence in the interval 4.2-300 K and the critical behavior of the dielectric function along c-axis in NaV2O5 have been studied in the frequency range 1 MHz-1 GHz. T…

cond-mat.str-el2000

X-ray Anomalous Scattering Study of a Charge-Ordered State in NaV2O5

H. Nakao, K. Ohwada, N. Takesue +9

Charge ordering of V4+ and V5+ in NaV2O5 has been studied by an X-ray diffraction technique using anomalous scattering near a vanadium K-absorption edge to critically enhance a con…

cond-mat.str-el1998

Anomalous thermal conductivity of NaV2O5 as compared to conventional spin-Peierls system CuGeO3

A. N. Vasil'ev, V. V. Pryadun, D. I. Khomskii +4

A huge increase of thermal conductivity k is observed at the phase transition in stoichiometric NaV2O5. This anomaly decreases and gradually disappears with deviation from stoichio…

cond-mat.mtrl-sci2016

Intrinsic Proton NMR Studies of Mg(OH) $_{2}$ and Ca(OH) $_{2}$

Y. Itoh, M. Isobe

We studied the short proton free induction decay signals and the broad ^1H NMR spectra of Mg(OH)2 and Ca(OH)2 powders at 77-355 K and 42 MHz using pulsed NMR techniques. Using a Ga…

cond-mat.str-el1998

Raman Scattering in the Inorganic Spin-Peierls System alpha'-Na_{1-delta}V_2O_5

H. Kuroe, H. Seto, J. Sasaki +3

We have studied the spin-Peierls (SP) transition in alpha'-Na_{1-delta}V_2O_5 (delta = 0, 0.01 and 0.1) by means of Raman scattering. At room temperature, we observe six A_1 and th…

cond-mat.mtrl-sci2005

New Misfit-Layered Cobalt Oxide (CaOH)1.14CoO2

M. Shizuya, M. Isobe, Y. Baba +6

We found a new cobalt oxide (CaOH)1.14CoO2 by utilizing the high-pressure technique. X-ray and electron diffraction studies revealed that the compound has layer structure which con…

cond-mat.str-el2014

Bulk Nature of Layered Perovskite Iridates beyond the Mott Scenario : An Approach from Bulk Sensitive Photoemission Study

A. Yamasaki, S. Tachibana, H. Fujiwara +24

We present genuine bulk Ir 5d jeff states of layered perovskite iridates obtained by hard-x-ray photoemission spectroscopy (HAXPES) with s- and p-polarized lights. HAXPES spectra o…

cond-mat.str-el2000

Magnetic Susceptibilities of Spin-1/2 Antiferromagnetic Heisenberg Ladders and Applications to Ladder Oxide Compounds

D. C. Johnston, M. Troyer, S. Miyahara +11

A comprehensive theoretical and experimental study is presented of the magnetic susceptibility versus temperature Ï(T) of spin S = 1/2 two- and three-leg Heisenberg ladders and la…

cond-mat.str-el2014

Magnetic pyroxenes LiCrGe2O6 and LiCrSi2O6: dimensionality crossover in a non-frustrated S=3/2 Heisenberg model

O. Janson, G. NÃ©nert, M. Isobe +4

The magnetism of magnetoelectric $S$ = 3/2 pyroxenes LiCrSi $_{2}$ O $_{6}$ and LiCrGe $_{2}$ O $_{6}$ is studied by density functional theory (DFT) calculations, quantum Monte Carlo (QMC) simul…

cond-mat.str-el2025

Multiorbital character of the density wave in trilayer nickelate superconductors

A. Suthar, V. Sundaramurthy, M. Bejas +15

Ruddlesden-Popper nickelates exhibit high-temperature superconductivity closely intertwined with charge and spin density waves. However, fundamental questions persist regarding the…

cond-mat.str-el2025

Magnetic ground state of the dimer-based hexagonal perovskite Ba $_{3}$ ZnRu $_{2}$ O $_{9}$

S. Hayashida, H. Gretarsson, P. Puphal +7

We investigate the magnetic ground state of single crystals of the ruthenium-dimer-based hexagonal perovskite Ba $_{3}$ ZnRu $_{2}$ O $_{9}$ using magnetic susceptibility and resonant i…

cond-mat.str-el1997

Observation of Spin Freezing in CaV4O9 and CaV2O5 by uSR

G. M. Luke, Y. Fudamoto, K. M. Kojima +10

We have performed muon spin relaxation and susceptibility measurements of CaV_4O_9 and CaV_2O_5, systems in which spin gap-like behavior has been found. We observe spin freezing in…

cond-mat.str-el2003

Raman scattering study of charge ordering in beta-Ca0.33V2O5

Z. V. Popovic, M. J. Konstantinovic, V. V. Moshchalkov +2

Polarized Raman spectra of the calcium vanadium oxide bronze beta-Ca0.33V2O5 are measured in the temperature range between 300 K and 20 K. The charge ordering phase transition at a…

cond-mat.str-el2013

The electronic structure of the high-symmetry perovskite iridate Ba2IrO4

S. Moser, L. Moreschini, A. Ebrahimi +11

We report angle-resolved photoemission (ARPES) measurements, density functional and model tight-binding calculations on Ba $_{2}$ IrO $_{4}$ (Ba-214), an antiferromagnetic ( $T_{N} = 230$ K) i…

cond-mat.str-el1998

High frequency dielectric and magnetic anomaly at the phase transition in NaV2O5

A. I. Smirnov, M. N. Popova, A. B. Sushkov +6

We found anomalies in the temperature dependence of the dielectric and the magnetic susceptibiliy of NaV_2O_5 in the microwave and far infrared frequency ranges. The anomalies occu…

cond-mat.str-el2011

Peierls Mechanism of the Metal-Insulator Transition in Ferromagnetic Hollandite K2Cr8O16

T. Toriyama, A. Nakao, Y. Yamaki +10

Synchrotron X-ray diffraction experiment shows that the metal-insulator transition occurring in a ferromagnetic state of a hollandite K $_{2}$ Cr $_{8}$ O $_{16}$ is accompanied by a struct…

cond-mat.supr-con2006

Fluxiod jumps coupled high critical current density of nano-Co3O4 doped MgB2

V. P. S. Awana, M. Isobe, K. P. Singh +3

Polycrystalline MgB2 samples with 0, 2, 4 and 6 percent added nano-Co3O4 being synthesized by vacuum (10-5 Torr) annealing at 750 0C for three hours each are found to be nearly sin…

cond-mat.str-el2001

Charge-ordering and optical transitions of LiV2O5 and NaV2O5

M. J. Konstantinovic, J. Dong, M. E. Ziaei +5

We present the measurements of the polarized optical spectra of NaV2O5 and LiV2O5. In an energy range from 0.5 to 5.5 eV we observe similar peaks in the E parallel a spectra of LiV…

cond-mat.supr-con2026

High temperature transitions in Ruddlesden-Popper nickelates La $_{n + 1}$ Ni $_{n}$ O $_{3 n + 1}$

P. Reiss, A. Shevchenko, P. S. Lizama +9

The discovery of superconductivity at $15 K$ in the infinite-layer nickelate $(Nd, Sr) NiO_{2}$ , followed by superconductivity at $80 K$ …

cond-mat.str-el2001

The "devil's staircase" type phase transition in NaV2O5 under high pressure

K. Ohwada, Y. Fujii, N. Takesue +12

The "devil's staircase" type phase transition in the quarter-filled spin-ladder compound NaV2O5 has been discovered at low temperature and high pressure by synchrotron radiation x-…

cond-mat.mtrl-sci2009

Condensation of a tetrahedra rigid-body libration mode in HoBaCo4O7 : the origin of phase transition at 355 K

A. I. Rykov, Y. Ueda, M. Isobe +6

Rietveld profiles, Moessbauer spectra and x-ray absorption fine structure (XAFS) were analyzed through the structural phase transition at Ts = 355 K in HoBaCo4O7. Excess of the oxy…

cond-mat.str-el2021

Magnetic correlations in infinite-layer nickelates: an experimental and theoretical multi-method study

R. A. Ortiz, P. Puphal, M. Klett +12

We report a comprehensive study of magnetic correlations in LaNiO $_{2}$ , a parent compound of the recently discovered family of infinite-layer (IL) nickelate superconductors, using…

cond-mat.str-el2008

CaCrO3: an anomalous antiferromagnetic metallic oxide

A. C. Komarek, S. V. Streltsov, M. Isobe +13

Combining infrared reflectivity, transport, susceptibility and several diffraction techniques, we find compelling evidence that CaCrO3 is a rare case of a metallic and antiferromag…

cond-mat.str-el2024

Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO $_{2}$

S. Hayashida, V. Sundaramurthy, P. Puphal +10

Recent x-ray spectroscopic studies have revealed spin excitations and charge density waves in thin films of infinite-layer (IL) nickelates. However, clarifying whether the origin o…

cond-mat.str-el2012

Partially disordered state and spin-lattice coupling in an S=3/2 triangular lattice antiferromagnet Ag2CrO2

M. Matsuda, H. Yoshida, M. Isobe +2

Ag2CrO2 is an S=3/2 frustrated triangular lattice antiferromagnet without orbital degree of freedom. With decreasing temperature, a 4-sublatice spin state develops. However, a long…

cond-mat.str-el2000

Investigation of thermal and magnetic properties of defects in a spin-gap compound NaV2O5

A. I. Smirnov, S. S. Sosin, R. Calemczuk +4

The specific heat, magnetic susceptibility and ESR signals of a Na-deficient vanadate Na_xV_2O_5 (x=1.00 - 0.90) were studied in the temperature range 0.07 - 10 K, well below the t…

cond-mat.str-el2010

Electronic structure of an antiferromagnetic metal: CaCrO3

P. A. Bhobe, A. Chainani, M. Taguchi +11

We report on the electronic structure of the perovskite oxide CaCrO3 using valence-band, core-level, and Cr 2p - 3d resonant photoemission spectroscopy (PES). Despite its antiferro…

cond-mat.str-el2006

Optical phonons in new ordered perovskite Sr2Cu(Re0.69Ca0.31) Oy system observed by infrared reflectance spectroscopy

J. Ahmad, M. Shizuya, M. Isobe +2

We report infrared reflectivity spectra for a new correlated cupric oxide system Sr2Cu(Re0.69Ca0.31)Oy with y ~ 0.6 at several temperatures ranging between 8 and 380 K. The reflect…

cond-mat.supr-con2006

Physical property characterization of Fe-tube encapsulated and vacuum annealed bulk MgB2

V. P. S. Awana, Rajeev Rawat, Anurag Gupta +6

We report phase formation, and detailed study of magnetization and resistivity under magnetic field of MgB2 polycrystalline bulk samples prepared by Fe-tube encapsulated and vacuum…

cond-mat.str-el1997

Appearance of new lines and change in line shape in the IR spectrum of a NaV_2O_5 single crystal at the spin-Peierls transition

M. N. Popova, A. B. Sushkov, A. N. Vasil'ev +2

We report the first observation of new lines in the infrared spectrum of a crystal due to unit-cell doubling at the spin-Peierls transition (in NaV_2O_5). The change in the shape o…

cond-mat.str-el2001

Charge-ordering phase transition and order-disorder effects in the Raman spectra of NaV2O5

M. J. Konstantinovic, M. Isobe, Y. Ueda

In the ac polarized Raman spectra of NaV2O5 we have found anomalous phonon broadening, and an energy shift of the low-frequency mode as a function of the temperature. These effects…

cond-mat.str-el1999

First evidence for charge ordering in NaV $_{2}$ O $_{5}$ from Raman spectroscopy

M. J. Konstantinovic, Z. V. Popovic, A. N. Vasil'ev +2

We argue on the basis of symmetry selection rules and Raman scattering spectra that NaV $_{2}$ O $_{5}$ undergoes a charge ordering phase transition at T $_{c}$ =34 K. Such a transition is ch…

cond-mat.str-el2006

Muon-spin relaxation measurements on the dimerized spin-1/2 chains NaTiSi2O6 and TiOCl

P. J. Baker, S. J. Blundell, F. L. Pratt +10

We report muon spin relaxation (muSR) and magnetic susceptibility investigations of two Ti3+ chain compounds which each exhibit a spin gap at low temperature, NaTiSi2O6 and TiOCl.…

cond-mat.str-el2003

Orbital Dimerization and Dynamic Jahn-Teller Effect in NaTiSi $_{2}$ O $_{6}$

M. J. KonstantinoviÄ, J. van den Brink, Z. V. PopoviÄ +3

We study with the Raman scattering technique two types of phase transitions in the pyroxene compounds NaMSi $_{2}$ O $_{6}$ (with M=Ti, V, and Cr). In the quasi one-dimensional S=1/2 syst…

Publications (61)

Single crystal synthesis, structure, and magnetism of Pb10−x​Cux​(PO4​)6​O

Microscopic investigation of the weakly correlated noncentrosymmetric superconductor SrAuSi3​

Resonant Raman scattering in NaV2O5 as a probe of its electronic structure

Formation of orbital molecules on a pyrochlore lattice induced by A-O bond covalency

Infrared phonon spectra of quasi-one-dimensional Ta2​NiSe5​ and Ta2​NiS5​

Almost pure Jeff​=1/2 Mott state of In2​Ir2​O7​ in the limit of reduced inter-site hopping

Robustness of basal-plane antiferromagnetic order and the Jeff​=1/2 state in single-layer iridate spin-orbit Mott insulators

Lattice vibrations of alpha'-NaV2O5

Orbital and spin chains in ZnV2O4

Extrinsic Proton NMR Studies of Mg(OH)2​ and Ca(OH)2​

Lattice vibrations of alpha'-NaV_2O_5 in the low-temperature phase. Magnetic bound states?

Metastable ordered states induced by low temperature annealing of Î´-Ag2/3V2O5

Tunneling-tip-induced collapse of the charge gap in the excitonic insulator Ta2​NiSe5​

Floating zone growth at high oxygen pressures in Ruddlesden-Popper bilayer nickelate Yy​Sr3−y​Ni2−x​Alx​O7−I^´​

Pressure-induced changes in the magnetic and valence state of EuFe2As2

Charge-exchange measurements of high-energy fast ions in LHD using negative-ion neutral beam injection

Low-energy excitations in NaV2O5

Optical properties of NaxV2O5

Infrared and Raman spectra of LiV2O5 single crystals

Raman, infrared and optical spectra of the spin-Peierls compound NaV_2O_5

Phase formation in hole- and electron-doped rare-earth nickelate single crystals

Raman Scattering from Magnetic Excitations in the Spin Ladder Compounds CaV2O5 and MgV2O5

Finite Temperature Effects in One-dimensional Mott-Hubbard Insulator: Angle-Resolved Photoemission Study of Na_{0.96}V_{2}O_{5}

Validating the ASCOT modelling of NBI fast ions in Wendelstein 7-X stellarator

Magnetic excitation spectra of NaV2​O5​

Orbital occupancies and the putative jeff = 1/2 groundstate in Ba2IrO4: a combined oxygen K edge XAS and RIXS study

High frequency ESR investigation on dynamical charge disproportionation and spin gap excitation in NaV_2O_5

Critical behavior in NaV2O5: the case of dielectric function and the aspect of universality

X-ray Anomalous Scattering Study of a Charge-Ordered State in NaV2O5

Anomalous thermal conductivity of NaV2O5 as compared to conventional spin-Peierls system CuGeO3

Intrinsic Proton NMR Studies of Mg(OH)2​ and Ca(OH)2​

Raman Scattering in the Inorganic Spin-Peierls System alpha'-Na_{1-delta}V_2O_5

New Misfit-Layered Cobalt Oxide (CaOH)1.14CoO2

Bulk Nature of Layered Perovskite Iridates beyond the Mott Scenario : An Approach from Bulk Sensitive Photoemission Study

Magnetic Susceptibilities of Spin-1/2 Antiferromagnetic Heisenberg Ladders and Applications to Ladder Oxide Compounds

Magnetic pyroxenes LiCrGe2O6 and LiCrSi2O6: dimensionality crossover in a non-frustrated S=3/2 Heisenberg model

Multiorbital character of the density wave in trilayer nickelate superconductors

Magnetic ground state of the dimer-based hexagonal perovskite Ba3​ZnRu2​O9​

Observation of Spin Freezing in CaV4O9 and CaV2O5 by uSR

Raman scattering study of charge ordering in beta-Ca0.33V2O5

The electronic structure of the high-symmetry perovskite iridate Ba2IrO4

High frequency dielectric and magnetic anomaly at the phase transition in NaV2O5

Peierls Mechanism of the Metal-Insulator Transition in Ferromagnetic Hollandite K2Cr8O16

Fluxiod jumps coupled high critical current density of nano-Co3O4 doped MgB2

Charge-ordering and optical transitions of LiV2O5 and NaV2O5

High temperature transitions in Ruddlesden-Popper nickelates Lan+1​Nin​O3n+1​

The "devil's staircase" type phase transition in NaV2O5 under high pressure

Condensation of a tetrahedra rigid-body libration mode in HoBaCo4O7 : the origin of phase transition at 355 K

Magnetic correlations in infinite-layer nickelates: an experimental and theoretical multi-method study

CaCrO3: an anomalous antiferromagnetic metallic oxide

Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO2​

Partially disordered state and spin-lattice coupling in an S=3/2 triangular lattice antiferromagnet Ag2CrO2

Investigation of thermal and magnetic properties of defects in a spin-gap compound NaV2O5

Electronic structure of an antiferromagnetic metal: CaCrO3

Optical phonons in new ordered perovskite Sr2Cu(Re0.69Ca0.31) Oy system observed by infrared reflectance spectroscopy

Physical property characterization of Fe-tube encapsulated and vacuum annealed bulk MgB2

Appearance of new lines and change in line shape in the IR spectrum of a NaV_2O_5 single crystal at the spin-Peierls transition

Charge-ordering phase transition and order-disorder effects in the Raman spectra of NaV2O5

First evidence for charge ordering in NaV2​O5​ from Raman spectroscopy

Muon-spin relaxation measurements on the dimerized spin-1/2 chains NaTiSi2O6 and TiOCl

Orbital Dimerization and Dynamic Jahn-Teller Effect in NaTiSi2​O6​

Single crystal synthesis, structure, and magnetism of Pb $_{10 - x}$ Cu $_{x}$ (PO $_{4}$ ) $_{6}$ O

Microscopic investigation of the weakly correlated noncentrosymmetric superconductor SrAuSi $_{3}$

Infrared phonon spectra of quasi-one-dimensional Ta $_{2}$ NiSe $_{5}$ and Ta $_{2}$ NiS $_{5}$

Almost pure $J_{eff} = 1/2$ Mott state of In $_{2}$ Ir $_{2}$ O $_{7}$ in the limit of reduced inter-site hopping

Robustness of basal-plane antiferromagnetic order and the $J_{e f f} = 1/2$ state in single-layer iridate spin-orbit Mott insulators

Extrinsic Proton NMR Studies of Mg(OH) $_{2}$ and Ca(OH) $_{2}$

Tunneling-tip-induced collapse of the charge gap in the excitonic insulator Ta $_{2}$ NiSe $_{5}$

Floating zone growth at high oxygen pressures in Ruddlesden-Popper bilayer nickelate Y $_{y}$ Sr $_{3 - y}$ Ni $_{2 - x}$ Al $_{x}$ O $_{7 - I^´}$

Magnetic excitation spectra of $N a V_{2} O_{5}$

Intrinsic Proton NMR Studies of Mg(OH) $_{2}$ and Ca(OH) $_{2}$

Magnetic ground state of the dimer-based hexagonal perovskite Ba $_{3}$ ZnRu $_{2}$ O $_{9}$

High temperature transitions in Ruddlesden-Popper nickelates La $_{n + 1}$ Ni $_{n}$ O $_{3 n + 1}$

Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO $_{2}$

First evidence for charge ordering in NaV $_{2}$ O $_{5}$ from Raman spectroscopy

Orbital Dimerization and Dynamic Jahn-Teller Effect in NaTiSi $_{2}$ O $_{6}$