このエントリーをはてなブックマークに追加
ID 18713
file
creator
Fernández-Rodríguez, J.
Blanco, J. A.
Brown, P. J.
Katsumata, Koichi
Kikkawa, Akiko
Iga, Fumitoshi
Michimura, Shinji
abstract
Recently, the collinear or noncollinear character of the magnetic structure of gadolinium tetraboride (GdB4), laying the magnetic moments in the ab plane, becomes a matter of controversy. In the present study, the observations obtained from resistivity, specific heat, and magnetic susceptibility measurements on a single crystal sample contain no evidence for a structural phase transition in this material above or below the Néel temperature TN. In addition to these measurements, the resonant x-ray Bragg diffraction structure factors derived from all the possible arrangements for Gd magnetic moments compatible with the room temperature tetragonal P4/mbm space group are calculated. The intensity derived with Shubnikov magnetic P4/m′b′m′ and P4′ /m′b′m space groups are found to account for the previously published resonant x-ray diffraction data on GdB4. (Both Shubnikov groups have magnetoelectric symmetry.)
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 72
issue
Issue 5
start page
052407-1
end page
052407-4
date of issued
2005-08-22
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2005 American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter