期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

铜氧化物高温超导体的比热容

The Electronic Specific Heat in High Temperature Cuprate Superconductors
下载PDF
导出
摘要 基于Nozieres-Schmitt-Rink的强耦合超导理论和推广的Luttinger理论,文中分别计算了低电子浓度和高电子浓度体系的电子比热容及线性比热系数,描绘出线性比热系数随温度的变化曲线。电子线性比热系数的计算结果表明,在Nozieres-Schmitt-Rink理论和推广的Luttinger理论框架下,铜氧化物高温超导体中产生赝隙。 Based on the Nozieres-Schmitt-Rink theory and expanded Luttinger theory, the electronic specific heat coefficient γ（T） is evaluated and ploted individually. The results indicated that the pseudo-gap phenomena are realized in quasi-two dimensional high temperature cuprate superconductors in the No- zieres-Schmitt-Rink theory and expanded Luttinger theory.
作者 李贞姬 王涛 谭小丹
机构地区 南方医科大学生物医学工程学院
出处 《中山大学学报（自然科学版）》 CAS CSCD 北大核心 2012年第3期7-12,共6页 Acta Scientiarum Naturalium Universitatis Sunyatseni
基金 国家自然科学基金资助项目(60771035) 广东省科技计划资助项目(2011B050300011)
关键词 铜氧化物高温超导体 电子比热容 线性比热系数 赝隙 high temperature cuprate superconductors electronic specific heat the specific heat coefficient pseudo-gap
分类号 O511.2 [理学—低温物理]
  • 相关文献

参考文献15

  • 1ADHIKARI S K, LLANO M DE,SEVII,LA F J, et al. The BCS-Bose crossover theory [ J ]. Physica C, 2006, 453 : 37 - 45.
  • 2LORAM J W, MIRZA K A, WADE J M,et al. The Elec- tronic Specific Heat of Cuprate Superconductor [ J ]. Phys- iea C, 1994,235 - 240 : 134 - 137.
  • 3LOESER A G,SHEN Z X, DESSAU D S, et al. Exitation gap in the normal state of underdoped Bi2Sr2CaCu208 + delta[ J]. Science, 1996,273:325 - 329.
  • 4刘国东.高温超导体角分辨光电子能谱研究及新进展[J].物理学进展,2004,24(2):163-194. 被引量：2
  • 5郑勇,苏刚.高温铜氧化物超导体能隙问题研究最新进展[J].中国科学（G辑）,2009,39(11):1553-1570. 被引量：2
  • 6YANASE Y. Theory of electric transport in the pseudogap state of High-Te cuprates [ J J. J Phys Soe Jpn, 2002,71 : 278 - 292.
  • 7JUJO T. Effect of umklapp scattering on magnetic filed penetration depth in High-Tc cuprates [J]. J. Phys. Soc. Jpn. ,2002, 71:888 -904.
  • 8NOZIERES P,SCHMI'IT-RINK S. Bose eondensation in an attractive fermion gas:From weak to strong coupling superconductivity[J]. J Low Temp Phys, 1985,59 : 195 - 211.
  • 9LEGGETT A J. Moden trends in the theory of condensed matter[ M ]. Berlin : Springer-Verlag, 1980 : 14.
  • 10ZIMAN J M. Principles of the theory of solids [ M ], Cambridge : Cambridge University Press, 1972 : 385.

二级参考文献175

  • 1Bednorz J G, Muller K A. Possible high Tc superconductivity in the Ba-La-Cu-O system. Z Phys B, 1986, 64(2): 189-193.
  • 2Kamihara Y, Watanabe T, Hirano M, et al. Iron-based layered superconductor La[O1-xFx]FeAs (x=-0.05-0.12) with Tc=26 K. J Am Chem Soc, 2008, 130(11): 3296-3297.
  • 3Yuan H Q, Singleton J, Balakirev F F, et al. Nearly isotropic superconductivity in (Ba,K)Fe2As2. Nature, 2009, 457(7229): 565-568.
  • 4Zhao J, Huang Q, de La Cruz C, et al. Structural and magnetic phase diagram of CeFeAsO1-xFx and its relation to high-temperature superconductivity. Nat Mater, 2008, 7(12): 953-959.
  • 5Kivelson S A, Yao H. Iron-based superconductors: Unity or diversity? Nat Mater, 2008, 7(12): 927-928.
  • 6Timusk T, Statt B. The pseudogap in high-temperature superconductors: An experimental survey. Rep Prog Phys, 1999, 62:61-122.
  • 7Norman M R, Pines D, Kallin C. The pseudogap: Friend or foe of high Tc? Adv Phys, 2005, 54(8): 715-733.
  • 8Hufner S, Hossain M A, Damascelli A, et al. Two gaps make a high-temperature superconductor? Rep Prog Phys, 2008, 71 (6): 62501.
  • 9Emery V J, Kivelson S A. Importance of phase fluctuations in superconductors with small superfluid density. Nature, 1995, 374(6521): 434-437.
  • 10Renner C, Revaz B, Genoud J Y, et al. Pseudogap precursor of the superconducting gap in under- and overdoped Bi2Sr2CaCu2O6+δ Phys Rev Lett, 1998, 80(1): 149-152.

共引文献2

中山大学学报（自然科学版）
2012年 第3期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部