317 citations · 1.7k across the 46 of their papers we have counts for
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Dynamic crystallography reveals spontaneous anisotropy in cubic GeTe
Simon A. J. Kimber, Jiayong Zhang, Charles H. Liang +10
Cubic energy materials such as thermoelectrics or hybrid perovskite materials are often understood to be highly disordered. In GeTe and related IV-VI compounds, this is thought to…
Direct observation of anapoles by neutron diffraction
S. W. Lovesey, T. Chatterji, A. Stunault +2
The scope of magnetic neutron scattering has been expanded by the observation of electronic Dirac dipoles (anapoles) that are polar (parity-odd) and magnetic (time-odd). A zero-mag…
Giant Exchange Bias in the Single-layered Ruddlesden-Popper Perovskite SrLaCo0.5Mn0.5O4
Ranjana R. Das, Priyadarshini Parida, A. K. Bera +3
Exchange bias (EB) as large as ~5.5 kOe is observed in SrLaCo0.5Mn0.5O4 which is the highest ever found in any layered transition metal oxides including Ruddlesden-Popper series. N…
Role of local short-scale correlations in the mechanism of negative magnetization
M. Tripathi, T. Chatterji, H. E. Fischer +4
We elaborate here why the antiferromagnetically ordered GdCrO responds in a diamagnetic way under certain conditions, by monitoring the evolution of the microscopic global and…
Unifying local and average structure in the phase change material GeTe
Jessica M. Hudspeth, Tapan Chatterji, Simon J. L. Billinge +1
The prototypical phase change material GeTe shows an enigmatic phase transition at Tc ca. 650 K from rhombohedral (R3m) to cubic (Fm-3m) symmetry. While local probes see little cha…
Anomalous temperature-induced volume contraction in GeTe
Tapan Chatterji, C. M. N. Kumar, Urszula D. Wdowik
The recent surge of interest in phase change materials GeTe, GeSbTe, and related compounds motivated us to revisit the structural phase transition in GeTe in more detai…
Emergence of pressure-induced metamagnetic-like state in Mn-doped CdGeAs2 chalcopyrite
T. R. Arslanov, A. Yu. Mollaev, I. K. Kamilov +6
The effect of hydrostatic pressure on resistivity and magnetic ac susceptibility has been studied in Mn-doped CdGeAs2 room-temperature (RT) ferromagnetic chalcopyrite with two type…
Phonon-Magnon coupling in CoF investigated by time-of-flight neutron spectroscopy
Tapan Chatterji, Mohamed Zbiri, Stephane Rols
We report the results of inelastic neutron scattering investigation on the model antiferromagnet CoF by time-of-flight neutron spectroscopy. We measured the details of the scat…
Local structure of ReO at ambient pressure from neutron total scattering study
Emil S. Bozin, T. Chatterji, Simon J. L. Billinge
A hypothesis that the local rotations of ReO octahedra persist in the crystallographically untilted ambient phase of ReO is examined by the high-resolution neutron time-of-…
Magnetic and magnetoresistive properties of cubic Laves phase HoAl single crystal
M. Patra, S. Majumdar, S. Giri +2
We report the magnetization () and magnetoresistance (MR) results of HoAl single crystals oriented along and directions. Although HoAl has cubic Laves ph…
Negative thermal expansion in ZnF
Tapan Chatterji, Mohamed Zbiri, Thomas C. Hansen
We have investigated temperature dependence of the lattice parameters and the unit cell volume of ZnF by neutron diffraction and have discovered negative thermal expansion (NTE…
Commensurate magnetic structures ofRMn2O5 (R=Y, Ho, Bi) determined by Single-crystal Neutron Diffraction
C. Vecchini L. C. Chapon, P. J. Brown, T. Chatterji +2
Precise magnetic structures of RMn2O5, with R= Y, Ho, Bi in the commensurate/ferroelectric regime, have been determined by single-crystal neutron diffraction. For each system, the…