ISSN:
1434-6036
Keywords:
PACS. 75.10.Nr Spin-glass and other random models - 75.50.Lk Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) - 75.30.Gw Magnetic anisotropy - 75.40.Cx Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: In the replica symmetric approximation and static limit in Matsubara “imaginary time”, the quantum XY spin glass model with planar Dzyaloshinskii-Moriya interaction in longitudinal field is investigated. Several thermodynamic quantities are calculated numerically as well as spin self-interaction and spin glass order parameter for spin S=1/2. It is shown that the entropy is not independent of the field. A crossover behavior of the specific heat depending on temperature is found. There is a deviation from the parabolic approximation, C/T=A+Bh 2 .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050698
Permalink