2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR75 papers
- University of MünsterDE37 papers
- Los Alamos National LaboratoryUS33 papers
- Max Planck Institute for Dynamics and Self-OrganizationDE26 papers
- Observatoire de la Côte d’AzurFR26 papers
- University of StuttgartDE25 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE23 papers
- Heinrich Heine University DüsseldorfDE23 papers
- Northwestern UniversityUS23 papers
- Deutsches Elektronen-Synchrotron DESYDE22 papers
- Bogolyubov Institute for Theoretical PhysicsUA21 papers
- ETH ZurichCH21 papers
74 papers · 1 filter
Tracing the horizon of tetragonal-to-monoclinic distortion in pressurized trilayer nickelate La4Ni3O10
Sitaram Ramakrishnan, Yingzheng Gao, Valerio Olevano +18
The crux of understanding the superconducting mechanism in pressurized Ruddlesden-Popper nickelates hinges on elucidating their structural phases. Under ambient conditions, the tri…
Broken inversion symmetry in the charge density wave phase in EuAl
Surya Rohith Kotla, Leila Noohinejad, Preeti Pokhriyal +4
EuAl exhibits a complex phase diagram, including the development of a charge density wave (CDW) below K. Below K, a series of antiferromagnetically…
I-centered vs F-centered orthorhombic symmetry and negative thermal expansion of the charge density wave of EuAl2Ga2
Harshit Agarwal, Surya Rohith Kotla, Leila Noohinejad +8
Together with EuGa4 and EuAl4, EuAl2Ga2 belongs to the BaAl4 structure type with space group symmetry I4/mmm. EuAl2Ga2 develops an incommensurate charge density wave (CDW) at tempe…
Room temperature charge density wave in a tetragonal polymorph of Gd2Os3Si5 and study of its origin in the RE2T3X5 (RE = Rare earth, T = transition metal, X = Si, Ge) series
Vikash Sharma, Sitaram Ramakrishnan, S. S. Jayakrishnan +9
Charge density wave (CDW) systems are proposed to exhibit application potential for electronic and optoelectronic devices. Therefore, identifying new materials that exhibit a CDW s…
Non-centrosymmetric, transverse structural modulation in SrAl4, and elucidation of its origin in the BaAl4 family of compounds
Sitaram Ramakrishnan, Surya Rohith Kotla, Hanqi Pi +13
At ambient conditions SrAl4 adopts the BaAl4 structure type with space group I4/mmm. It undergoes a charge-density-wave (CDW) transition at TCDW = 243 K, followed by a structural t…
Annealing-induced long-range charge density wave order in magnetic kagome FeGe: fluctuations and disordered structure
Chenfei Shi, Yi Liu, Bishal Baran Maity +18
Charge density wave (CDW) in kagome materials with the geometric frustration is able to carry unconventional characteristics. Recently, a CDW has been observed below the antiferrom…
Realization of Z Topological Metal in Single-Crystalline Nickel Deficient NiVSe
Sitaram Ramakrishnan, Shidaling Matteppanavar, Andreas Schonleber +6
Temperature-dependent electronic and magnetic properties are reported for a Z2 topological metal single-crystalline nickel-deficient NiVSe. It is found to crystallize in th…
Coupling between colossal charge density wave ordering and magnetism in Ho2Ir3Si5
Sitaram Ramakrishnan, Jin-Ke Bao, Claudio Eisele +14
Ho2Ir3Si5 belongs to the family of three-dimensional (3D) R2Ir3Si5 (R = Lu, Er and Ho) compounds that exhibit a colossal first-order charge density wave (CDW) transition where ther…
Structural correlation to enhanced magnetodielectric properties of Pr-doped polycrystalline GdPrMnO at low temperatures
Pooja Pant, Harshit Agarwal, Suresh Bharadwaj +2
The effect of improved dielectric properties in the presence of an applied magnetic field is discussed in Pr doped polycrystalline GdPrMnO complemented by the…
Spin and charge density waves in the quasi-one-dimensional KMn6Bi5
Jin-Ke Bao, Huibo Cao, Matthew J. Krogstad +9
AMn6Bi5 materials (A = Na, K, Rb and Cs) consisting of unique Mn-cluster chains emerge as a new family of superconductors with the suppression of their antiferromagnetic (AFM) orde…
Orthorhombic charge density wave on the tetragonal lattice of EuAl4
Sitaram Ramakrishnan, Surya Rohith Kotla, Toms Rekis +13
EuAl4 possesses the BaAl4 crystal structure type with tetragonal symmetry I4/mmm. It undergoes a charge-density-wave (CDW) transition at TCDW = 145 K and it features four consecuti…
Inverse pressure-induced Mott transition in TiPO
H. Johan M. Jönsson, Marcus Ekholm, Maxim Bykov +3
TiPO shows interesting structural and magnetic properties as temperature and pressure are varied, such as a spin-Peierls phase transition and the development of incommensurate…
Breakdown of magnetic order in the pressurized Kitaev iridate -LiIrO
M. Majumder, R. S. Manna, G. Simutis +14
Temperature-pressure phase diagram of the Kitaev hyperhoneycomb iridate -LiIrO is explored using magnetization, thermal expansion, magnetostriction, and muon spin rotati…
Theoretical and experimental evidence of a site-selective Mott transition in Fe2O3 under pressure
E. Greenberg, I. Leonov, S. Layek +6
We provide experimental and theoretical evidence for a novel type of pressure-induced insulator-metal transition characterized by site-selective delocalization of the electrons. Mö…
Energy Exchange between Phononic and Electronic Subsystem Governing The Nonlinear Conduction in DCNQICu
Florian Huewe, Alexander Steeger, Irene Bauer +3
We present a dynamical study on the nonlinear conduction behaviour in the commensurate charge-density-wave phase of the quasi-one-dimensional conductor DCNQICu below 75 K. We c…
Electronic properties and magnetism of iron at the Earth's inner core conditions
L. V. Pourovskii, T. Miyake, S. I. Simak +3
We employ state-of-the-art ab initio simulations within the dynamical mean-field theory to study three likely phases of iron (hexogonal close-packed, hcp, face centered cubic, fcc,…
Two pressure-induced structural phase transitions in TiOCl
J. Ebad-Allah, A. Schönleber, S. van Smaalen +7
We studied the crystal structure of TiOCl up to pressures of =25~GPa at room temperature by x-ray powder diffraction measurements. Two pressure-induced structural phase transiti…
Heat conductivity of the spin-Peierls compounds TiOCl and TiOBr
N. Hlubek, M. Sing, S. Glawion +5
We report experimental results on the heat conductivity κof the S=1/2 spin chain compounds TiOBr and TiOCl for temperatures 5K<T<300K and magnetic fields up to 14. Surprisingly, we…
Multiple vortex-antivortex pair generation in magnetic nanodots
Yuri Gaididei, Volodymyr P. Kravchuk, Denis D. Sheka +1
The interaction of a magnetic vortex with a rotating magnetic field causes the nucleation of a vortex--antivortex pair leading to a vortex polarity switching. The key point of this…
Mott-Hubbard gap closure and structural phase transition in the oxyhalides TiOBr and TiOCl under pressure
C. A. Kuntscher, A. Pashkin, H. Hoffmann +9
Pressure-dependent transmittance and reflectance spectra of TiOBr and TiOCl single crystals at room temperature suggest the closure of the Mott-Hubbard gap, i.e., the gap is filled…
Switching phenomena in magnetic vortex dynamics
Yuri B. Gaididei, Volodymyr P. Kravchuk, Franz G. Mertens +1
A magnetic nanoparticle in a vortex state is a promising candidate for the information storage. One bit of information corresponds to the upward or downward magnetization of the vo…
A Raman study of the Charge-Density-Wave State in AMoO (A = K,Rb)
D. M. Sagar, D. Fausti, S. Yue +3
We report a comparative Raman spectroscopic study of the quasi-one-dimensional charge-density-wave systems \ab (A = K, Rb). The temperature and polarization dependent experiments r…
Dynamic probes of quantum spin chains with the Dzyaloshinskii-Moriya interaction
Oleg Derzhko, Taras Verkholyak, Taras Krokhmalskii +1
We consider the spin-1/2 anisotropic XY chain in a transverse (z) field with the Dzyaloshinskii-Moriya interaction directed along z-axis in spin space to examine the effect of the…
Controllable switching of vortex chirality in magnetic nanodisks by a field pulse
Yuri Gaididei, Denis D. Sheka, Franz G. Mertens
We propose a way of fast switching the chirality in a magnetic nanodisk by applying a field pulse. To break the symmetry with respect to clockwise or counterclockwise chirality a m…