TEMPERATURE-DEPENDENT ISOMER SHIFT AND ANHARMONIC BINDING OF SN119 IN NB3SN FROM MOSSBAUER-EFFECT MEASUREMENTS

被引：50

作者：

SHIER, JS

TAYLOR, RD

机构：

来源：

PHYSICAL REVIEW | 1968年 / 174卷 / 02期

关键词：

D O I：

10.1103/PhysRev.174.346

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the temperature dependence of the Mössbauer recoil-free fraction and the line shift of Sn119 in several Nb3Sn absorbers between 4 and 375°K. The recoil-free fraction measurements show that the forces on the tin atoms are highly anharmonic. The line-shift measurements are interpreted in terms of a temperature-dependent electron density at the tin nucleus, which is shown to support previous suggestions of a very narrow d band near the Fermi level. © 1968 The American Physical Society.

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页码：346 / &

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