PHASE-TRANSITION AND ELECTRON LOCALIZATION IN 1T-TAS2
文献类型：期刊论文
| 作者 | S. Y. Dai ; C. T. Yu ; D. H. Li ; Z. Y. Shen ; S. Y. Fang |
| 刊名 | Physical Review B
 |
| 出版日期 | 1995 |
| 卷号 | 52期号:3页码:1578-1583 |
| 关键词 | metal-insulator-transition density-wave domains high magnetic-fields charge-density doped 1t-tas2 coexistence microscopy systems silicon 2h-tas2 |
| ISSN号 | 0163-1829 |
| 中文摘要 | The magnetic properties and phase transitions of 1T-TaS2 and 1T-Fe0.07Ta0.93S2 have been studied in the interval of 1.5-300 K and over the range of 100 Oe-60 kOe. Experimental results show that at high temperatures the compounds are in a diamagnetic state and the commensurate-charge-density-wave-triclinic-nearly-commensurate transition temperature of 1T-TaS2 decreases with increasing magnetic field. The amount of variation is a function of the magnetic field. At low temperatures both 1T-TaS2 and 1T-Fe0.07Ta0.93S2 are in a paramagnetic state owing to the localized moments that come from the single Anderson-Mott localization state. The curves of magnetization versus temperature do not follow the Curie law or Curie-Weiss law, but can be described fairly well as M = M(0) + gamma T--n. The fitting parameters of experimental curves show that a part of the neighboring moment appears as antiferromagnetic coupling due to exchange interaction between the moments. The magnetic-field dependence of magnetization exhibits a complicated feature at low temperature. It shows that the compounds may undergo a phase transition at the maximum value of magnetization and then they are probably in a mixed charge-density-wave-spin-density-wave (CDW-SDW) state or SDW state due to the coherent superposition of the antiferromagnetic coupling. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38549]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. Y. Dai,C. T. Yu,D. H. Li,et al. PHASE-TRANSITION AND ELECTRON LOCALIZATION IN 1T-TAS2[J]. Physical Review B,1995,52(3):1578-1583. |
| APA | S. Y. Dai,C. T. Yu,D. H. Li,Z. Y. Shen,&S. Y. Fang.(1995).PHASE-TRANSITION AND ELECTRON LOCALIZATION IN 1T-TAS2.Physical Review B,52(3),1578-1583. |
| MLA | S. Y. Dai,et al."PHASE-TRANSITION AND ELECTRON LOCALIZATION IN 1T-TAS2".Physical Review B 52.3(1995):1578-1583. |
入库方式： OAI收割
来源：金属研究所
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