Modal polarization analysis using Fourier-rectangular function transform in a cylindrical plasma

2021 ◽  
Vol 129 (9) ◽  
pp. 093301
Author(s):  
D. Nishimura ◽  
A. Fujisawa ◽  
Y. Nagashima ◽  
C. Moon ◽  
K. Yamasaki ◽  
...  
Keyword(s):  
Polarization Analysis ◽  
Cylindrical Plasma

Imaging magnetic microstructure with SEMPA

1993 ◽  
Vol 51 ◽  
pp. 1032-1033
Author(s):  
M. H. Kelley ◽  
J. Unguris ◽  
R. J. Celotta ◽  
D. T. Pierce
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Scanning Electron Microscopy ◽  
Sandwich Structure ◽  
Magnetic Coupling ◽  
Polarization Analysis ◽  
Secondary Electrons ◽  
Magnetic Microstructure ◽  
Escape Depth ◽  
Scanning Electron

By measuring the spin polarization of secondary electrons generated in a scanning electron microscope, scanning electron microscopy with polarization analysis (SEMPA) can directly image the magnitude and direction of a material’s magnetization. Because the escape depth of the secondaries is only on the order of 1 nm, SEMPA is especially well-suited for investigating the magnetization of ultra-thin films and surfaces. We have exploited this feature of SEMPA to study the magnetic microstrcture and magnetic coupling in ferromagnetic multilayers where the layers may only be a few atomic layers thick. For example, we have measured the magnetic coupling in Fe/Cr/Fe(100) and Fe/Ag/Fe(100) trilayers and have found that the coupling oscillates between ferromagnetic and antiferromagnetic as a function of the Cr or Ag spacer thickness.The SEMPA apparatus has been described in detail elsewhere. The sample consisted of a magnetic sandwich structure with a wedge-shaped interlayer as shown in Fig. 1.

POLARIZATION ANALYSIS OF THE MAGNETIC DIFFUSE SCATTERING OF Na3Cr2P3O12

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-199-C8-200
Author(s):  
N. Fanjat ◽  
O. Schaerpf ◽  
J. L. Soubeyroux ◽  
A. J. Dianoux ◽  
G. Lucazeau
Keyword(s):  
Diffuse Scattering ◽  
Polarization Analysis

Comparison of probe and narrow-band imaging measurements in a magnetized cylindrical plasma

2019 ◽  
Vol 26 (2) ◽  
pp. 023502
Author(s):  
A. D. Light ◽  
S. Chakraborty Thakur ◽  
G. R. Tynan
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Cylindrical Plasma

Helicon waves in a cylindrical plasma

1999 ◽  
Vol 77 (5) ◽  
pp. 385-391
Author(s):  
M Shoucri
Keyword(s):  
Dispersion Relation ◽  
Coupling Mechanism ◽  
Electron Mass ◽  
Cylindrical Plasma ◽  
Bounded Plasma ◽  
Helicon Waves

The dispersion relation for helicon waves in a uniform bounded plasma is derived by including the finite electron mass. The eigenmodes are identified and the coupling mechanism between the Ez and Bz modes is discussed. This is important since an essential part of the physics associated with the application of helicon waves for the generation and heating of plasmas consists in coupling the whistler branch with the Ez mode, which can interact directly with the electrons.PACS No.: 52.35-g

SANS polarization analysis at V4 SANS instrument of HMI Berlin

2008 ◽  
Vol 19 (3) ◽  
pp. 034009 ◽  
Author(s):  
U Keiderling ◽  
A Wiedenmann ◽  
A Rupp ◽  
J Klenke ◽  
W Heil
Keyword(s):  
Polarization Analysis ◽  
Sans Instrument
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