SCANNING TUNNELING MICROSCOPY WITH SPIN-POLARIZED ELECTRONS

被引:6
作者
WIESENDANGER, R
GUNTHERODT, HJ
GUNTHERODT, G
GAMBINO, RJ
RUF, R
机构
[1] RHEIN WESTFAL TH AACHEN, INST PHYS, W-5100 AACHEN, GERMANY
[2] IBM CORP, THOMAS J WATSON RES CTR, YORKTOWN HTS, NY 10598 USA
来源
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 80卷 / 01期
关键词
D O I
10.1007/BF01390646
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We present a short outline of the first STM experiments with spin-polarized electrons performed in ultrahigh vacuum by using ferromagnetic CrO2 tips and a Cr(001) single crystal surface. A clear distinction can be made between topographic STM line scans obtained with a non-magnetic tungsten tip and those obtained with a ferromagnetic CrO2 tip, which are modified due to an additional contribution from spin-dependent vacuum tunneling. STM therefore has the potential to measure the local electron spin polarization of the free surface as well as the spatial distribution of spins on the atomic scale. © 1990 Springer-Verlag.
引用
收藏
页码:5 / 6
页数:2
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