TY  - JOUR
AU  - Čermák, Petr
AU  - Javorský, Pavel
AU  - Kratochvílová, Marie
AU  - Pajskr, Karel
AU  - Klicpera, Milan
AU  - Ouladdiaf, Bachir
AU  - Lemée-Cailleau, Marie-Hélène
AU  - Rodriguez-Carvajal, Juan
AU  - Boehm, Martin
TI  - 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$_8$
JO  - Physical review / B
VL  - 89
IS  - 18
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-00213
SP  - 184409
PY  - 2014
AB  - $R_2$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 $T_N$.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000335885700002
DO  - DOI:10.1103/PhysRevB.89.184409
UR  - https://juser.fz-juelich.de/record/186125
ER  -