Heat Capacity of Intercalated Layered Materials FexNbS2 at Low Temperature |
| |
| Authors: | Tsuji T Yamamura Y Watanabe H Saito K Sorai M |
| |
| Institution: | (1) Center for New Materials, Japan Advanced Institute of Science and Technology, Hokuriku 1-1 Asahidai, Tatsunokuchi, Ishikawa 923-1292, Japan;(2) Development Department, Research and Development Division, Noritake Co., Limited Miyoshi, Aichi 470-0293, Japan;(3) Microcalorimetry Research Center, School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan |
| |
| Abstract: | The heat capacities and magnetic susceptibilities of powdered samples of FexNbS2 (x=0.14, 0.21 and 0.30) were measured at temperatures from 8 to 303 K and from 5 to 300 K, respectively. For Fe0.14NbS2, the magnetic susceptibility exhibited an anomaly as a shoulder at about 57 K, but no heat capacity anomaly was observed at this temperature, indicating the appearance of a spin-glass state. Anomalies in the heat capacity for FexNbS2 (x=0.21 and 0.30) occurred at 100.5 and 45.0 K, respectively, where the magnetic susceptibility displayed a maximum, corresponding to an antiferro-paramagnetic phase transition. The electronic state of the iron atom is discussed on the basis of entropy analysis.This revised version was published online in November 2005 with corrections to the Cover Date. |
| |
| Keywords: | FexNbS2 heat capacity intercalated compounds layeredcompounds magnetic susceptibility |
| 本文献已被 SpringerLink 等数据库收录！ |
|
