Field-induced phase transitions and giant magnetoresistance in Dy3Co single crystals

Authors
Baranov, NV Bauer, E Hauser, R Galatanu, A Aoki, Y Sato, H
Citation
Nv. Baranov et al., Field-induced phase transitions and giant magnetoresistance in Dy3Co single crystals, EUR PHY J B, 16(1), 2000, pp. 67-72
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
16
Issue
1
Year of publication
2000
Pages
67 - 72
Database
ISI
SICI code
1434-6028(200007)16:1<67:FPTAGM>2.0.ZU;2-G
Abstract
Electrical resistivity and calorimetric measurements on Dy3Co show that bel ow the Neel temperature (T-N = 44 K) the non-collinear antiferromagnetic st ructure exhibits: field-induced magnetic phase transitions of a first-order type along all principal axes, accompanied by a strongly anisotropic giant magnetoresistance and by a change of the Sommerfeld coefficient of the spe cific heat. Quantum tunnelling of the magnetization appears to be possible for T < 0.6 K.