Polaron effective mass.

Polaron effective mass.
复制标题

极化子有效质量。

DOI:
10.1103/physrevb.37.3085
复制
发表时间:
1988
期刊:
Physical review. B, Condensed matter
影响因子:
--
通讯作者:
Lawande
Lawande
中科院分区:
--
文献类型:
--
作者:
Khandekar;Bhagwat;Lawande

文献摘要

被引文献

相似文献

考察了极化子有效质量${m}^{\mathrm{*}}$的各种定义的准确性。通过使用零温度核得到的${m}^{\mathrm{*}}$的表达式与通过使用有限温度核得到的温度相关的有效质量的零温度极限进行比较。我们发现,一致的结果时,斋藤的定义。我们的计算说明了一个简单的情况下,弱的电子-声子相互作用。
Adequacy of various definitions of polaron effective mass ${m}^{\mathrm{*}}$ is examined. The expression for ${m}^{\mathrm{*}}$ obtained by using the zero-temperature kernel is compared with the zero-temperature limit of the temperature-dependent effective mass obtained by employing the finite-temperature kernel. We find that consistent results are obtained when Saitoh's definition is employed. Our calculations are illustrated for a simple case of weak electron-phonon interaction.