CEMS-STUDY OF THE INTERFACE IN FE/CR MULTILAYER SYSTEMS

被引：20

作者：

LANDES, J ^{[1
]}

SAUER, C ^{[1
]}

BRAND, RA ^{[1
]}

ZINN, W ^{[1
]}

KAJCSOS, Z ^{[1
]}

机构：

[1] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST, HUNGARY

来源：

HYPERFINE INTERACTIONS | 1990年 / 57卷 / 1-4期

关键词：

D O I：

10.1007/BF02405746

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The magnetic hyperfine (hf.) fields at the Fe/Cr interface were analyzed in epitaxial Fe/Cr thin film structures of (100)- and (110)-orientation with monolayer resolution by means of in-situ57Fe Conversion Electron Mössbauer Spectroscopy (CEMS). The hf. field (300 K) in the 1st Fe-monolayer (ML) at the interface has been found to be strongly reduced to 22.0/20.9 T for (110)-/(100)-orientation, whereas the 2nd and 3rd ML reveal a slightly increased hf. field of 33.7 T as compared with the Fe-bulk value of 33.4 T. The temperature dependence of the hf. field at the interface shows a T3/2 spin wave law. The spin wave parameters are enlarged with respect to the bulk value indicating a reduced exchange interaction. A discontinuity in the T3/2-dependence is interpreted by the onset of magnetic order (Néel-temperature) of the Cr layers adjoining the57Fe probe layer. © 1990 J.C. Baltzer A.G. Scientific Publishing Company.

引用

页码：1941 / 1947

页数：7

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