Citation
E. Cizmar et al., Magnetic properties of Ni(C5H5N)(2)Ni(CN)(4) - 2d S=1 Heisenberg magnet with easy-axis anisotropy, J MAGN MAGN, 197, 1999, pp. 433-434
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853
→ ACNP
Volume
197
Year of publication
1999
Pages
433 - 434
Database
ISI
SICI code
0304-8853(199905)197:<433:MPON-2>2.0.ZU;2-2
Abstract
Specific heat studies of structurally layered powdered Ni(C5H5N)(2)Ni(CN)(4
) have been carried out from 100 mK to 2.5 K in zero magnetic field. A lamb
da-like anomaly with a strong rounding-off observed at 0.9 K might be ascri
bed to the phase transition into the magnetically ordered state. Consequent
ly, easy-axis type of anisotropy introduced by C5H5N enabled analysing the
system using a 2d S = 1/2 Ising model for the square lattice and a Schottky
anomaly yielding D/k(B) = -1.9 K and \J/k(B)\ = 0.35 K. (C) 1999 Elsevier
Science B.V. All rights reserved.