全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

高压下Sr2FeMoO6的电学性质与相变

DOI: 10.11858/gywlxb.2002.02.009, PP. 137-139

Keywords: 高压原位测试,钙钛矿结构,磁电阻,金属化相变

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用电阻和电容测量方法,在金刚石压砧装置上研究了Sr2FeMoO6多晶粉末在室温下和20GPa内的电阻、电容和压力的关系。实验结果表明,样品的电阻和电容在约2.1GPa的压力下都产生了突然的变化,发生了金属化相变。这些变化可能是由高压下Sr2FeMoO6的电子结构相变引起的。

References

[1]  Kobayashi K-I, Kimura T, Sawada H, et al. Room-Temperature Magnetoresistance in an Oxide Material with an Ordered Double-Perovskite Structure [J]. Nature, 1998, 395: 677.
[2]  Bao Z X, Schmidt V H, Howell F L. Phase Transitions in KH2PO4 to 14 GPa Observed by Capacitance Change in a Diamond Anvil Cell [J]. J Appl Phys, 1991, 70(11): 6804.
[3]  Bao Zhong-xing, Zhang Zhi-ting, Yu Ting-nan. Metallic Transition of Ga, Si, Ge under High Pressure and the Measuring Method [J]. Chinese Science Bulletin, 1984, 29(14): 846-849. (in Chinese)
[4]  鲍忠兴, 张芝婷, 俞汀南. Ga、Si和Ge在高压下的金属化相变及其测定方法 [J]. 科学通报, 1984, 29(14): 846-849.
[5]  Fang Z, Terakura K. Strong Ferromagnetism and Weak Antiferromagnetism in Double Perovskite: Sr2FeMO6(M=Mo, W, and Re) [J]. Phys Rev B, 2001, 63: 180407.
[6]  Sarma D D, Priya Mahadevan, Saha-dasgupta T, et al. Electronic Structure of Sr2FeMoO6 [J]. Phys Rev Lett, 2000, 85: 2549.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133