ELECTRONIC AND DIFFUSION-INDUCED SPIN-LATTICE RELAXATION AND THE LATTICE EXPANSION ABOUT INTERSTITIAL B-12 IN AL

被引：4

作者：

JAGER, E ^{[1
]}

BURKMANN, K ^{[1
]}

FISCHER, B ^{[1
]}

FRANK, HP ^{[1
]}

ITTERMANN, B ^{[1
]}

SULZER, G ^{[1
]}

STOCKMANN, HJ ^{[1
]}

ACKERMANN, H ^{[1
]}

机构：

[1] UNIV MARBURG, ZENTRUM MAT WISSENSCH, FACHBEREICH PHYS & WISSENSCHAFTL, W-3550 MARBURG, GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 86卷 / 03期

关键词：

D O I：

10.1007/BF01323732

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The spin-lattice relaxation of B-12 in single-crystal aluminum was measured by beta-NMR in the temperature range 290 to 700 K. The total relaxation rate was separated into two well understood contributions caused by the interaction with conduction electrons and by B-12 diffusion, and into a third unexplained part at high temperatures. From the comparison of the diffusional relaxation rate with theoretical calculations it was concluded that the nearest neighbours of B-12, trapped in the octahedral interstitial site, are displaced away by 8.8(30)%.

引用

页码：389 / 395

页数：7

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