CALIBRATING THE SPIN POLARIZATION IN ELECTRON-BEAMS FROM NEA GAAS PHOTOCATHODES BY MEANS OF ELECTRON-SPECTROSCOPY

被引：4

作者：

CICCACCI, F

CHIAIA, G

DEROSSI, S

LENISA, P

机构：

[1] Dipartimento di Fisica, Politecnico di Milano, I-20133 Milano

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 340卷 / 01期

关键词：

D O I：

10.1016/0168-9002(94)91289-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The interaction of polarized electrons with magnetic targets gives rise to large and well measurable effects in electron spectroscopy. Such effects can be used to test and calibrate the spin polarization of an electron beam impinging on a reference sample. We present data on the spin polarization of electron beams produced by negative electron affinity (NEA) GaAs photocathodes measured by means of spin dependent absorbed current and inverse photoemission spectroscopies on Fe films epitaxially grown on the Ag(100) surface.

引用

页码：122 / 126

页数：5

共 24 条

[1]

CICCACCI F, 1989, NATO ADV SCI I B-PHY, V206, P317

[2] COMPARATIVE-STUDY OF THE PREPARATION OF NEGATIVE ELECTRON-AFFINITY GAAS PHOTOCATHODES WITH O-2 AND WITH NF-3 [J].