Study of the dynamic thermal expansion of Bi-based high-T-c superconductors

IMR OpenIR

	Study of the dynamic thermal expansion of Bi-based high-T-c superconductors
	J. Y. Chen; J. D. Guo; B. L. Zhou
	1998
发表期刊	Physics of Low-Dimensional Structures
ISSN	0204-3467
卷号	41098 页码:117-123
摘要	The dynamic process of thermal expansion (DPTE) of Bi-based high-T-c (HTC) superconductor thin films (Bi2Sr2Ca2Cu3O10, T-c=105 K) is studied theoretically to explain the experimental results obtained by Guo et al [1]. Two groups of parameters are obtained to fit the experimental data, the agreement is good. Compared with the normal state? the an harmonic effects are greatly enhanced in the superconducting state. Both the asymmetry of the mutual repulsion of the atoms and phonon softening are enhanced in the superconducting state, the increase in phonon softening being especially large, up to 10(3) in magnitude. In the end, the mechanism of the HTC superconductors is tentatively discussed.
部门归属	chinese acad sci, inst met res, lab 5, shenyang 110015, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. shenyang normal coll, shenyang 110031, peoples r china.;chen, jy (reprint author), chinese acad sci, inst met res, lab 5, 72 wenhua rd, shenyang 110015, peoples r china
关键词	Anharmonicity Electron Phonons Pulses
URL	查看原文
WOS记录号	WOS:000075663500013
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37636
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Y. Chen,J. D. Guo,B. L. Zhou. Study of the dynamic thermal expansion of Bi-based high-T-c superconductors[J]. Physics of Low-Dimensional Structures,1998,41098:117-123.
APA	J. Y. Chen,J. D. Guo,&B. L. Zhou.(1998).Study of the dynamic thermal expansion of Bi-based high-T-c superconductors.Physics of Low-Dimensional Structures,41098,117-123.
MLA	J. Y. Chen,et al."Study of the dynamic thermal expansion of Bi-based high-T-c superconductors".Physics of Low-Dimensional Structures 41098(1998):117-123.