材料研究学报  1998, Vol. 12 Issue (2): 159-162

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Bi系高T_c超导体动态热膨胀反常行为理论初探

陈金玉;郭敬东;周本濂

中国科学院金属研究所;中国科学院国际材料物理中心;沈阳师范学院

THE THEORETICAL STUDY OF DYNAMIC THERMAL EXPANSION OF Bi-BASED HIGH T_c SUPERCONDUCTORS

CHEN Jinyu; GUO Jingdong; ZHOU Benlian(Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)(International Center for Material Physics; The Chinese Academy of Sciences)(Shenyang Teachers' College )

陈金玉;郭敬东;周本濂. Bi系高T_c超导体动态热膨胀反常行为理论初探[J]. 材料研究学报, 1998, 12(2): 159-162.
, , . THE THEORETICAL STUDY OF DYNAMIC THERMAL EXPANSION OF Bi-BASED HIGH T_c SUPERCONDUCTORS[J]. Chin J Mater Res, 1998, 12(2): 159-162.

摘要 参考文献 相关文章 Metrics 全文: PDF(318 KB)   摘要: 从理论上探讨了高Tc超导体的动态热膨胀反常行为对正常态和超导态分别用两组参数拟合实验数据,结果基本吻合与正常态相比,超导态的非谐性增强,原子间相互排斥的不对称性和声子的软化现象均增强,尤其是声子的软化更为显著此结果有助于理解高Tc超导电性机理 关键词 ： 热膨胀动态过程,  高温超导体,  非谐效应,  声子软化,  极化子     Abstract：The dynamic process of thermal expansion of Bi-based high-Tc superconductors is studied theoretically. For normal and superconducting states, two groups of parameters are obtained to fit the experimental data, the agreement is good. Compared with the norm Key words： dynamic process of thermal expansion    high-T_c superconductor    anharmonic effect    phonon softening    polaron 收稿日期: 1998-04-25      基金资助:国家自然科学基金!59431040;;中国博士后科学技术基金;;辽宁省科学技术基金!428033 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 陈金玉 郭敬东 周本濂 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y1998/V12/I2/159 1 G.K.White, R.Driver, R.B.Robert, Intern.J.Thermophys., 12, 687(1991) 2 S.J.Collocott, G.K.White, S.X.Dou, R.K.Wiliams, Phys.Rev. 36B, 5684(1987) 3 G.Oomi, K.Suenaga, J .Alloys and Compounds, 181, 219(1992) 4 B.L.Zhou, Proc.1st Asian Thermo.Prop.Conf.(ATPC)(China Academic Publishers, Beijing, 1986) p.39 5 J.X.Li, B.L.Zhou, J.Phys: Condens.Matter, 4, 1015(1992) 6 J.C.Hensel, R.C.Dynes, Phys.Rev.Lett., 39, 969(1977) 7 J.C.Kimball, C.Y.Fong, Y.R.Shen, Phys.Rev.B, 23, 4946(1981) 8 A.Bussmann-Holder, A.R.Bishop, Phys.Rev.B, 44, 2853(1991) 9 G.K.White. Proc.Phys.Soc., 86, 159(1965) 10 H.A.Mook, M.Mostoller, J.A.Harvey, N.W.Hill, B.C.Chakoumakos, B.C.Sales, Phys.Rev.Lett. 65, 2712(1990) 11 S.Conradson, I.Raistrick, A.R.Bishop, Science, 248, 1394(1990) 12 L.J.de Jongh, Physica C, 152, 171(1988) 13 张基瑞著,高温超导电性,(杭州,浙江大学出版社,1994) 14 D.Emin in:Physics and Material Science of High Temperature Supereonductors 2, edited by R.Kossowsky.,(Kluwer Academic Publishers, Printed in the Netherlands, 1992) p.27 15 S.Sil, A.Chatterjee, Mod.Phys.Lett.B, 6, 959(1992)L [1] 陈金玉; 阳宗全; 蔡敏; 高明; 郭敬东 ; 周本濂 . Bi系高温超导体的能量吸收及反常热膨胀[J]. 材料研究学报, 1999, 13(2): 179-182. Viewed Full text Abstract Cited   Shared      Discussed