Observation of -100% Spin-Polarized Photoelectrons from a Transversely Magnetized Ni(110) Single Crystal
Observation of -100% Spin-Polarized Photoelectrons from a Transversely Magnetized Ni(110) Single Crystal
复制标题
观察%20of%20-100%%20自旋极化%20光电子%20from%20a%20横向%20磁化%20Ni(110)%20单%20晶体
DOI：
10.1103/physrevlett.45.2053
复制
发表时间：
1980
影响因子：
8.6
通讯作者：
M. Campagna
中科院分区：
文献类型：
--
作者：
E. Kisker;W. Gudat;E. Kuhlmann;R. Clauberg;M. Campagna
我们首次测量了在没有外加磁场的情况下，横向磁化样品发射的光电子的电子自旋极化率P。利用这种光电发射几何形状，利用光学选择规则选择性地激发不同对称性的自旋极化电子态，如Ni（110）的N13和N14带的发射所示，其中观察到P值高达-100%。
We have measured for the first time the electron spin polarization P of photoelectrons emitted from a transversely magnetized sample in the absence of an externally applied magnetic field. With this photoemission geometry, use has been made of optical selection rules for selectively exciting spin-polarized electron states of different symmetry as illustrated for emission from the Σ 3 and Σ 4 bands of Ni (110), where values of P up to—100% have been observed.