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@ARTICLE{Li:155401,
author = {Li, Haifeng and Zhang, C. and Senyshyn, A. and Wildes, A.
and Schmalzl, Karin and Schmidt, Wolfgang and Boehm, M. and
Ressouche, E. and Hou, B.-Y. and Meuffels, P. and Roth, G.
and Brückel, Thomas},
title = {{I}ncommensurate antiferromagnetic order in the
manifoldly-frustrated {S}r{T}b2{O}4 with transition
temperature up to 4.28 {K}},
journal = {Frontiers in Physics},
volume = {2},
issn = {2296-424X},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {FZJ-2014-04568},
pages = {42},
year = {2014},
abstract = {The Néel temperature of the new frustrated family of
SrRE2O4 (RE = rare earth) compounds is yet limited to ~0.9
K, which more or less hampers a complete understanding of
the relevant magnetic frustrations and spin interactions and
an exploration of potential interesting properties. Here we
report on a new frustrated member to the family, SrTb2O4
with a record TN = 4.28(2) K, and an experimental study of
the magnetic interacting and frustrating mechanisms by
polarized and unpolarized neutron scattering. The compound
SrTb2O4 displays an incommensurate antiferromagnetic (AFM)
order with a transverse wave vector Q0.5 KAFM = (0.5924(1),
0.0059(1), 0) albeit with partially-ordered moments, 1.92(6)
μB at 0.5 K, stemming from only one of the two inequivalent
Tb sites mainly by virtue of their different octahedral
distortions. The localized moments are confined to the bc
plane, 11.9(66)° away from the b axis probably by
single-ion anisotropy. We reveal that this AFM order is
dominated mainly by dipole-dipole interactions and disclose
that the octahedral distortion, nearest-neighbour (NN)
ferromagnetic (FM) arrangement, different next NN FM and AFM
configurations, and in-plane anisotropic spin correlations
are vital to the magnetic structure and associated multiple
frustrations. The discovery of the thus far highest AFM
transition temperature renders SrTb2O4 a new friendly
frustrated platform in the family for studying the nature of
magnetic interactions and frustrations and exploring
potential macroscopic functionalities and new quantum
states.},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-ILL / PGI-7},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-ILL-20110128 /
I:(DE-Juel1)PGI-7-20110106},
pnm = {54G - JCNS (POF2-54G24) / 424 - Exploratory materials and
phenomena (POF2-424)},
pid = {G:(DE-HGF)POF2-54G24 / G:(DE-HGF)POF2-424},
experiment = {EXP:(DE-MLZ)SPODI-20140101},
typ = {PUB:(DE-HGF)16},
doi = {10.3389/fphy.2014.00042},
url = {https://juser.fz-juelich.de/record/155401},
}