MAGNETIC-FIELD-INDUCED TRANSITION OF THULIUM MANGANESE OXIDE TMMN2O5

Authors
IWATA N UGA M KOHN K
Citation
N. Iwata et al., MAGNETIC-FIELD-INDUCED TRANSITION OF THULIUM MANGANESE OXIDE TMMN2O5, Ferroelectrics, 204(1-4), 1997, pp. 97-105
Citations number
15
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
204
Issue
1-4
Year of publication
1997
Pages
97 - 105
Database
ISI
SICI code
0015-0193(1997)204:1-4<97:MTOTMO>2.0.ZU;2-K
Abstract
We report the magnetic field dependence of dielectric constant and mag netoelectric effect of TmMn2O5 and YbMn2O5 single crystals. An anomalo us change of magnetoelectric effect occurs at 5 kOe (TmMn2O5) or at 18 kOe (YbMn2O5) at 4.2 K, when an magnetic field is applied along the c -direction. The anomaly in YbMn2O5 is attributed to a transition betwe en different magnetic structures. In TmMn2O5 an anomaly was also obser ved in dielectric constant. We propose a structural transition caused by a magnetic held.