A kinetic equation for spin-polarized plasmas

On the basis of our previous work, a rigorous kinetic equation for a spin-polarized plasma is derived in the weak-coupling quasi-classical limit. The macroscopic polarization vector is defined in a unified form for spin-½ and spin-1 particles. Using the kinetic equation, an equation for the macroscopic polarization density is derived in the form of a ‘spin-hydrodynamical equation’. The depolarization rate for the spin–orbit interaction and the spin–spin interaction is estimated. Some difficulties for the spin–spin interaction are displayed and discussed.

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Spin-polarized Scanning Electron Microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100176976 ◽

1990 ◽

Vol 48 (4) ◽

pp. 768-769

Author(s):

Kazuyuki Koike ◽

Hideo Matsuyama

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

High Speed ◽

Magnetic Thin Films ◽

Electron Spin Polarization ◽

Acquisition Time ◽

Magnetization Direction ◽

Spin Polarized ◽

Conventional Methods ◽

Scanning Electron

Spin-polarized scanning electron microscopy (spin SEM), where the secondary electron spin polarization is used as the image signal, is a novel technique for magnetic domain observation. Since its first development by Koike and Hayakawa in 1984, several laboratories have extensively studied this technique and have greatly improved its capability for data extraction and its range of applications. This paper reviews the progress over the last few years.Almost all the high expectations initially held for spin SEM have been realized. A spatial resolution of several hundreds angstroms has been attained, which is nearly one order of magnitude higher than that of conventional methods for thick samples. Quantitative analysis of magnetization direction has been performed more easily than with conventional methods. Domain observation of the surface of three-dimensional samples has been confirmed to be possible. One of the drawbacks, a long image acquisition time, has been eased by combining highspeed image-signal processing with high speed scanning, although at the cost of image quality. By using spin SEM, the magnetic structure of a 180 degrees surface Neel wall, magnetic thin films, multilayered films, magnetic discs, etc., have been investigated.

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Investigation of spin-polarized carrier injection effect in|YBa2Cu3O7/SrTiO3/La0.67/Sr0.33MnO3 and YBa2Cu3O7/La0.67Sr0.33MnO3 heterostructures

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:20011108 ◽

2001 ◽

Vol 11 (PR11) ◽

pp. Pr11-53-Pr11-57

Author(s):

B. Vengalis ◽

V. Plausinaitiene ◽

A. Abrutis ◽

Z. Saltyte ◽

R. Butkute ◽

...

Keyword(s):

Carrier Injection ◽

Spin Polarized ◽

Injection Effect

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OPTICAL TRANSITIONS BETWEEN SPIN-POLARIZED BANDS IN MAGNETIC CHROMIUM SPINELS

Le Journal de Physique Colloques ◽

10.1051/jphyscol:19711333 ◽

1971 ◽

Vol 32 (C1) ◽

pp. C1-932-C1-933 ◽

Cited By ~ 1

Author(s):

H. W. LEHMANN ◽

G. HARBEKE ◽

H. PINCH

Keyword(s):

Optical Transitions ◽

Spin Polarized

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SURFACE AND THIN FILM MAGNETISM WITH SPIN POLARIZED ELECTRONS

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1988802 ◽

1988 ◽

Vol 49 (C8) ◽

pp. C8-9-C8-16 ◽

Cited By ~ 14

Author(s):

H. C. Siegmann ◽

D. Mauri ◽

D. Scholl ◽

E. Kay

Keyword(s):

Thin Film ◽

Polarized Electrons ◽

Spin Polarized ◽

Thin Film Magnetism

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