Field-induced gap formation in Yb4As3

Citation
M. Oshikawa et al., Field-induced gap formation in Yb4As3, J PHYS JPN, 68(10), 1999, pp. 3181-3184
Citations number
18
Language
INGLESE
art.tipo
Letter
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
0031-9015 → ACNP
Volume
68
Issue
10
Year of publication
1999
Pages
3181 - 3184
Database
ISI
SICI code
0031-9015(199910)68:10<3181:FGFIY>2.0.ZU;2-Y
Abstract
The field-induced gap observed in the specific heat of Yb4As3 is interprete d as being due to the effective staggered field introduced hy the alternati ng g-tensor and alternating Dzyaloshinsky- Moriya interactions. This mechan ism also provides a natural explanation for the anomalous increase of magne tic susceptibility at low temperatures. A specific prediction is made for t he dependence of the gap on the field direction.