% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@INPROCEEDINGS{Kanwar:1047035,
author = {Kanwar, K. and Angst, M. and Panwar, N. and Kumar Malik,
V.},
title = {{S}tructural and {M}agnetic {C}haracterization of {RC}r{O}3
({R} = {H}o, {G}d){C}omplex {P}erovskites},
reportid = {FZJ-2025-04086},
year = {2025},
abstract = {Rare-earth orthochromites (RCrO₃) have attracted
widespread attention in recent years due to theirrich
physical properties and potential applications in
spintronics, thermomagnetic switches, photocatalysts,and
low-temperature magnetic refrigeration [1-3]. RCrO₃
exhibits canted antiferromagneticbehavior with the canting
caused by the Dzyaloshinskii–Moriya interactions and the
interactionbetween Cr³⁺ and rare-earth magnetic
sublattices, the latter of which also leads to
negativemagnetization under certain thermal and magnetic
conditions [1]. These interactions and magneticfrustration
lead to deviations from classical Curie–Weiss behavior at
low temperatures. Among allthe rare-earth orthochromites, we
chose HoCrO3 (HCO) for our study, because in this
compound,the Ho3+ ion owns a large magnetic moment ~ 10.6
μB. From the Curie-Weiss fit of magnetic
susceptibilitydata, we observed a large negative value of
the Weiss temperature, which showed theantiferromagnetic
nature and magnetic frustration in the compound. We also
found very large valuesof the magnetocaloric parameters [3].
This study opens an avenue for further investigation ofother
rare-earth metals to explore magnetic frustrations. GdCrO3
is another promising candidatefor a variety of physical
applications, especially its magnetic and giant
magnetocaloric properties[4].Therefore, in our current
study, we aim to grow high-quality single crystals of GdCrO3
for detailedneutron scattering experiments to elucidate
frustrated magnetic states and correlated spin dynamics.The
prepared polycrystalline precursors were characterized using
powder X-ray diffraction followedby Rietveld refinement to
determine their structural and microstructural properties.
Furthermore,magnetic studies revealed a negative
magnetization at low temperatures, along with spin
reorientationbehavior. By fitting the dc magnetization data
with the modified Curie–Weiss law, including
theDzyaloshinskii–Moriya antisymmetric exchange
interaction (D) and the symmetric exchange constant(J),
these parameters were obtained. This comprehensive
characterization shows the precursorsto be highly suitable
for crystal growth, which is currently being pursued with
laser floating-zonefurnace. Available first results on
crystals would be shown as well.[1] A. A. Qahtan, et. al.,
Physica Scripta, 99, 072001 (2024).[2] M. Rani, et. al.,
Ceramics International, 48, 19925-19936 (2022).[3] K.
Kanwar, et. al., Ceramics International, 47, 7386-7397
(2021).[4] S. Mahana, et. al., Journal of Physics D: Applied
Physics, 51, 305002 (2018).},
month = {Oct},
date = {2025-10-07},
organization = {JCNS Workshop 2025, Trends and
Perspectives in Neutron Scattering.
Quantum Materials: Theory and
Experiments, Evangelische Akademie
Tutzing (Germany), 7 Oct 2025 - 9 Oct
2025},
subtyp = {Invited},
cin = {JCNS-2 / JARA-FIT},
cid = {I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (FZJ) (POF4-6G4)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/1047035},
}