%0 Journal Article
%A Čermák, Petr
%A Javorský, Pavel
%A Kratochvílová, Marie
%A Pajskr, Karel
%A Klicpera, Milan
%A Ouladdiaf, Bachir
%A Lemée-Cailleau, Marie-Hélène
%A Rodriguez-Carvajal, Juan
%A Boehm, Martin
%T Magnetic structures of non-cerium analogues of heavy-fermion Ce$_2$RhIn$_8$: The case of Nd$_2$RhIn$_8$, Dy$_2$RhIn$_8$, and Er$_2$RhIn$_8$
%J Physical review / B
%V 89
%N 18
%@ 1098-0121
%C College Park, Md.
%I APS
%M FZJ-2015-00213
%P 184409
%D 2014
%X $R_2$RhIn$_8$ compounds (space group P4/mmm, R is a rare-earth element) belong to a large group of structurally related tetragonal materials which involves several heavy-fermion superconductors based on Ce. We have succeeded in growing single crystals of compounds with Nd, Dy, and Er, and following our previous bulk measurements, we performed neutron-diffraction studies to determine their magnetic structures. The Laue diffraction experiment showed that the antiferromagnetic order below the Néel temperature is in all three compounds characterized by the propagation vector k=(1/2,1/2,1/2) . The amplitude and direction of the magnetic moments, as well as the invariance symmetry of the magnetic structure, were determined by subsequent experiments using two- and four-circle diffractometers. The critical exponents were determined from the temperature dependence of the intensities below $T_N$.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000335885700002
%R 10.1103/PhysRevB.89.184409
%U https://juser.fz-juelich.de/record/186125