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Publications (20)

cond-mat.mtrl-sci2008

Noncentrosymmetric Commensurate Magnetic Ordering of Multiferroic ErMn2O5

B. Roessli, P. Fischer, P. J. Brown +7

The non-centrosymmetric magnetic structure of ErMn $_{2}$ O $_{5}$ has been shown to be very similar to that of HoMn $_{2}$ O $_{5}$ (Vecchini {\it et al.}, 2008 Phys. Rev. B {\bf 77} 134434). T…

cond-mat.str-el2015

Spin-orbital liquid state assisted by singlet-triplet excitation in $J = 0$ ground state of Ba $_{3}$ ZnIr $_{2}$ O $_{9}$

Abhishek Nag, Srimanta Middey, Sayantika Bhowal +17

Strong spin-orbit coupling (SOC) effects of heavy $d$ -orbital elements have long been neglected in describing the ground states of their compounds thereby overlooking a variety of…

cond-mat.str-el2021

Magnetic order in the quasi-one-dimensional Ising system RbCoCl $_{3}$

N. P. HÃ¤nni, D. Sheptyakov, M. Mena +9

The dynamical properties of free and bound domain-wall excitations in Ising-chain materials have recently become the focus of intense research interest. New materials and spectrome…

cond-mat.str-el2014

k=0 magnetic structure and absence of ferroelectricity in SmFeO3

C. -Y. Kuo, Y. Drees, M. T. FernÃ¡ndez-DÃaz +17

SmFeO3 has attracted considerable attention very recently due to the reported multiferroic properties above room-temperature. We have performed powder and single crystal neutron di…

cond-mat.mtrl-sci2017

Valence, exchange interaction, and location of Mn in polycrystalline Mn(x)Ga(1-x)N (x<0.04)

A. Furrer, K. W. Kraemer, A. Podlesnyak +3

We present an experimental study for polycrystalline samples of the diluted magnetic semiconductor Mn(x)Ga(1-x)N (x<0.04) in order to address some of the existing controversial iss…

cond-mat.mtrl-sci2019

Room-temperature structural phase transition in the quasi-2D spin-1/2 Heisenberg antiferromagnet Cu(pz) $_{2}$ (ClO $_{4}$ ) $_{2}$

N. Barbero, M. Medarde, T. Shang +5

Cu(pz) $_{2}$ (ClO $_{4}$ ) $_{2}$ (with pz denoting pyrazine C $_{4}$ H $_{4}$ N $_{2}$ ) is a two-dimensional spin-1/2 square-lattice antiferromagnet with $T_{N}$ = 4.24 K. Due to a persisting…

cond-mat.str-el2015

Sc_{2}Ga_{2}CuO_{7}: A possible Quantum spin liquid near the percolation threshold

R. Kumar, P. Khuntia, D. Sheptyakov +6

Sc $_{2}$ Ga $_{2}$ CuO $_{7}$ (SGCO) crystallizes in a hexagonal structure (space group: $P$ $6$ $_{3} / mm c$ ),\textcolor{black}{{} which can be seen as an alternating stacking of single a…

cond-mat.str-el2013

1D to 2D Na Ion Diffusion Inherently Linked to Structural Transitions in Na $_{0.7}$ CoO $_{2}$

M. Medarde, M. Mena, J. L. Gavilano +9

We report the observation of a stepwise "melting" of the low-temperature Na-vacancy order in the layered transition metal oxide Na0.7CoO2. High-resolution neutron powder diffractio…

cond-mat.supr-con2011

Synthesis, crystal and magnetic structure of iron selenide BaFe2Se3 with possible superconductivity at Tc=11K

A. Krzton-Maziopa, E. Pomjakushina, V. Pomjakushin +4

We report on synthesis of single crystals of BaFe2Se3 and study of their crystal and magnetic structures by means of synchrotron single crystal X-ray and neutron powder diffraction…

cond-mat.str-el2015

Incommensurate magnetic structure, Fe/Cu chemical disorder and magnetic interactions in the high-temperature multiferroic YBaCuFeO5

M. Morin, A. Scaramucci, M. Bartkowiak +9

Motivated by the recent observations of incommensurate magnetic order and electric polarization in YBaCuFeO5 up to temperatures TN2 as high as 230K [1,2] we report here for the fir…

cond-mat.str-el2015

Jahn-Teller versus quantum effects in the spin-orbital material LuVO3

M. Skoulatos, S. Toth, B. Roessli +17

We report on combined neutron and resonant x-ray scattering results, identifying the nature of the spin-orbital ground state and magnetic excitations in LuVO3 as driven by the orbi…

cond-mat.str-el2015

Nd2Sn2O7: an all-in-all-out pyrochlore magnet with no divergence-free field and anomalously slow paramagnetic spin dynamics

A. Bertin, P. Dalmas de Reotier, B. Fak +9

We report measurements performed on a polycrystalline sample of the pyrochlore compound Nd2Sn2O7. It undergoes a second order magnetic phase transition at Tc ~ 0.91 K to a noncopla…

cond-mat.str-el2019

Distortion mode anomalies in bulk PrNiO $_{3}$ illustrating the potential of symmetry-adapted distortion mode analysis for the study of phase transitions

D. J. Gawryluk, Y. M. Klein, T. Shang +7

The origin of the metal-to-insulator transition in RNiO3 perovskites with trivalent 4f ion has challenged the condensed matter research community for almost three decades. A drawba…

cond-mat.mtrl-sci2004

Neutron scattering study of PbMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ and BaMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ complex perovskites

S. N. Gvasaliya, B. Roessli, D. Sheptyakov +2

Neutron scattering investigations were carried out in PbMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ and BaMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ complex perovskites. The crystal structure of both compounds does…

cond-mat.str-el2026

Magnetic phase diagram and spin Hamiltonian of antiferromagnet Cs $_{2}$ CoI $_{4}$

S. D. Nabi, L. Facheris, V. Romerio +12

We report comprehensive thermodynamic and neutron scattering measurements on the $S$ = 3/2 antiferromagnet Cs $_{2}$ CoI $_{4}$ , a member of the thoroughly studied family of frustrated ma…

cond-mat.str-el2016

Ba $_{3}$ M $_{x}$ Ti $_{3 - x}$ O $_{9}$ (M = Ir, Rh): A family of 5\textit{\textcolor{black}{d}}/4\textit{\textcolor{black}{d}}-based, diluted quantum spin liquids

R. Kumar, D. Sheptyakov, P. Khuntia +6

We report the structural and magnetic properties of the 4}\textit{\textcolor{black}{d }}\textcolor{black}{(M = Rh) based and 5}\textit{\textcolor{black}{d }}\textcolor{black}{(M =…

cond-mat.mtrl-sci2006

Simultaneous Antiferromagnetic Fe3+ and Nd3+ Ordering in NdFe3(11BO3)4

P. Fischer, V. Pomjakushin, D. Sheptyakov +8

By means of magnetic susceptibility and specific heat measurements, x-ray and unpolarised neutron diffraction investigations on powder and single-crystal samples, simultaneous long…

cond-mat.str-el2014

Low temperature crystal structure and local magnetometry for the geometrically frustrated pyrochlore Tb2Ti2O7

P. Dalmas de Reotier, A. Yaouanc, A. Bertin +6

We report synchrotron radiation diffraction and muon spin rotation (muSR) measurements on the frustrated pyrochlore magnet Tb2Ti2O7. The powder diffraction study of a crushed cryst…

cond-mat.mtrl-sci2007

High pressure behavior of CsC8 graphite intercalation compound

N. Rey, P. Toulemonde, D. Machon +12

The high pressure phase diagram of CsC8 graphite intercalated compound has been investigated at ambient temperature up to 32 GPa. Combining X-ray and neutron diffraction, Raman and…

cond-mat.supr-con2015

Oxygen Isotope Effects on Lattice Properties of La_{2-x}Ba_xCuO_4 (x = 1/8)

Z. Guguchia, D. Sheptyakov, E. Pomjakushina +6

A novel negative oxygen-isotope (16O/18O) effect (OIE) on the low-temperature tetragonal phase transition temperature T_{LTT} was observed in La_{2-x}Ba_xCuO_4 (x = 1/8) using high…

Publications (20)

Noncentrosymmetric Commensurate Magnetic Ordering of Multiferroic ErMn2O5

Spin-orbital liquid state assisted by singlet-triplet excitation in J = 0 ground state of Ba3​ZnIr2​O9​

Magnetic order in the quasi-one-dimensional Ising system RbCoCl3​

k=0 magnetic structure and absence of ferroelectricity in SmFeO3

Valence, exchange interaction, and location of Mn in polycrystalline Mn(x)Ga(1-x)N (x<0.04)

Room-temperature structural phase transition in the quasi-2D spin-1/2 Heisenberg antiferromagnet Cu(pz)2​(ClO4​)2​

Sc_{2}Ga_{2}CuO_{7}: A possible Quantum spin liquid near the percolation threshold

1D to 2D Na Ion Diffusion Inherently Linked to Structural Transitions in Na0.7​CoO2​

Synthesis, crystal and magnetic structure of iron selenide BaFe2Se3 with possible superconductivity at Tc=11K

Incommensurate magnetic structure, Fe/Cu chemical disorder and magnetic interactions in the high-temperature multiferroic YBaCuFeO5

Jahn-Teller versus quantum effects in the spin-orbital material LuVO3

Nd2Sn2O7: an all-in-all-out pyrochlore magnet with no divergence-free field and anomalously slow paramagnetic spin dynamics

Distortion mode anomalies in bulk PrNiO3​ illustrating the potential of symmetry-adapted distortion mode analysis for the study of phase transitions

Neutron scattering study of PbMg1/3​Ta2/3​O3​ and BaMg1/3​Ta2/3​O3​ complex perovskites

Magnetic phase diagram and spin Hamiltonian of antiferromagnet Cs2​CoI4​

Ba3​Mx​Ti3−x​O9​(M = Ir, Rh): A family of 5\textit{\textcolor{black}{d}}/4\textit{\textcolor{black}{d}}-based, diluted quantum spin liquids

Simultaneous Antiferromagnetic Fe3+ and Nd3+ Ordering in NdFe3(11BO3)4

Low temperature crystal structure and local magnetometry for the geometrically frustrated pyrochlore Tb2Ti2O7

High pressure behavior of CsC8 graphite intercalation compound

Oxygen Isotope Effects on Lattice Properties of La_{2-x}Ba_xCuO_4 (x = 1/8)

Spin-orbital liquid state assisted by singlet-triplet excitation in $J = 0$ ground state of Ba $_{3}$ ZnIr $_{2}$ O $_{9}$

Magnetic order in the quasi-one-dimensional Ising system RbCoCl $_{3}$

Room-temperature structural phase transition in the quasi-2D spin-1/2 Heisenberg antiferromagnet Cu(pz) $_{2}$ (ClO $_{4}$ ) $_{2}$

1D to 2D Na Ion Diffusion Inherently Linked to Structural Transitions in Na $_{0.7}$ CoO $_{2}$

Distortion mode anomalies in bulk PrNiO $_{3}$ illustrating the potential of symmetry-adapted distortion mode analysis for the study of phase transitions

Neutron scattering study of PbMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ and BaMg $_{1/3}$ Ta $_{2/3}$ O $_{3}$ complex perovskites

Magnetic phase diagram and spin Hamiltonian of antiferromagnet Cs $_{2}$ CoI $_{4}$

Ba $_{3}$ M $_{x}$ Ti $_{3 - x}$ O $_{9}$ (M = Ir, Rh): A family of 5\textit{\textcolor{black}{d}}/4\textit{\textcolor{black}{d}}-based, diluted quantum spin liquids