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@ARTICLE{Brning:903596,
author = {Brüning, D. and Fröhlich, T. and Gorkov, D. and
Císařová, I. and Skourski, Y. and Rossi, L. and Bryant,
B. and Wiedmann, S. and Meven, M. and Ushakov, A. and
Streltsov, S. V. and Khomskii, D. and Becker, P. and
Bohatý, L. and Braden, M. and Lorenz, T.},
title = {{M}ultiple field-induced phases in the frustrated
triangular magnet {C}s$_3${F}e$_2${B}$_ 9$},
journal = {Physical review / B},
volume = {104},
number = {6},
issn = {1098-0121},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2021-05250},
pages = {064418},
year = {2021},
abstract = {The recently discovered material Cs$_3$Fe$_2$Br$_9$
contains Fe$_2$Br$_9$ bi-octahedra forming triangular layers
with hexagonal stacking along the $c$ axis. In contrast to
isostructural Cr-based compounds, the zero-field ground
state is not a nonmagnetic S=0 singlet-dimer state. Instead,
the Fe$_2$Br$_9$ bi-octahedra host semiclassical S=5/2
Fe$^{3+}$ spins with a pronounced easy-axis anisotropy along
c, and interestingly, the intradimer spins are ordered
ferromagnetically. The high degree of magnetic frustration
due to (various) competing intradimer and interdimer
couplings leads to a surprisingly rich magnetic phase
diagram. The zero-field ground state is already reached via
an intermediate phase, and the high-field magnetization and
thermal expansion data for H∥c identify 10 different
ordered phases. Among them are phases with constant
magnetization of 1/3, respectively 1/2, of the saturation
value, and several transitions are strongly hysteretic with
pronounced length changes, reflecting strong magnetoelastic
coupling.},
cin = {JCNS-FRM-II / MLZ / JARA-FIT / JCNS-2 / PTJ-ESI},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-2-20110106 /
I:(DE-Juel1)PTJ-ESI-20160331},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4)},
pid = {G:(DE-HGF)POF4-6G4},
experiment = {EXP:(DE-MLZ)HEIDI-20140101 / EXP:(DE-MLZ)KOMPASS-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000684127200007},
doi = {10.1103/PhysRevB.104.064418},
url = {https://juser.fz-juelich.de/record/903596},
}