Spin polarized photoemission studies of the Gd(0001) surface

被引：10

作者：

Fedorov, AV ^{[1
]}

Valla, T ^{[1
]}

Huang, DJ ^{[1
]}

Reisfeld, G ^{[1
]}

Loeb, F ^{[1
]}

Liu, F ^{[1
]}

Johnson, PD ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1998年 / 92卷 / 1-3期

关键词：

gadolinium; magnetic properties; photoemission;

D O I：

10.1016/S0368-2048(98)00093-0

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The surface magnetic properties of the rare earth Lanthanide, gadolinium (Gd) have been the subject of a number of different experimental and theoretical studies in recent years. These studies have suggested that the surface of Gd exhibits a variety of unusual magnetic properties including imperfect ferromagnetic coupling between the surface and bulk, canted magnetic moments and some form of phase transition. Also the temperature dependent behavior appears to be quite controversial with both a Stoner-like and spin-mixing behavior invoked to describe the loss of magnetization. With new angle- and spin-resolved studies carried out at room and low temperatures, we re-examine this temperature dependence and confirm that both types of behavior are evident. We further provide direct evidence that at the temperature of liquid nitrogen, it is possible to observe a canting of the surface moments out of the surface plane. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：19 / 24

页数：6

共 21 条

[1] MAGNETIC REORIENTATION TRANSITION IN EPITAXIAL GD-FILMS [J].