...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics of the solid state >Determination of the parameters of the normal state in doped yttrium high-temperature superconductors from thermopower coefficients in terms of different models of electron transport
【24h】

Determination of the parameters of the normal state in doped yttrium high-temperature superconductors from thermopower coefficients in terms of different models of electron transport

机译：根据电子传输的不同模型，根据热功率系数确定掺杂钇高温超导体的常态参数

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The temperature dependences of the thermopower coefficient for two systems of doped yttrium high-temperature superconductors Y_(1 - x)Pr_xBa_2Cu_3O_y (x = 0.1-0.6) and Y_(1 - x)Ca_xBa_(1.5)La_(0.5)Cu_3O_y (x = 0.05-0.30) have been analyzed using three models of electron transport, i.e., the Xin two-band model, the two-band model with an additional term linear in temperature, and the narrow-band model. For parameters of different models with a similar physical meaning, identical tendencies have been revealed in their variation with an increase in the dopant content. The mechanisms of influence of the dopants under investigation on the parameters of the band spectrum and the systems of charge carriers have been examined. It has been demonstrated that the revealed features of the dynamics of the Fermi level in the Y_(1 - x)Ca_xBa_(1.5)La_(0.5)Cu_3O_y system are explained by the formation of an additional peak in the density of states upon doping with calcium, and the energy position of this peak is estimated.
机译：两个掺杂钇高温超导体Y_（1-x）Pr_xBa_2Cu_3O_y（x = 0.1-0.6）和Y_（1-x）Ca_xBa_（1.5）La_（0.5）Cu_3O_y（x =使用三种电子传输模型，即Xin两波段模型，温度附加线性项的两波段模型以及窄带模型，对0.05-0.30）进行了分析。对于具有相似物理意义的不同模型的参数，随着掺杂剂含量的增加，在其变化中揭示出相同的趋势。考察了研究中的掺杂物对能带谱参数和载流子系统的影响机理。业已证明，Y_（1-x）Ca_xBa_（1.5）La_（0.5）Cu_3O_y系统中费米能级动力学的揭示特征可以通过掺杂时在态密度上形成一个附加峰来解释。钙，并估算该峰的能量位置。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号