Spin dependent momentum density and Fermi surface of ferromagnetic Ni obtained by positron annihilation experiments

2004 ◽  
Vol 241 (13) ◽  
pp. 2962-2967 ◽  
Author(s):  
A. S. Hamid ◽  
A. Uedono
Keyword(s):  
Fermi Surface ◽  
Positron Annihilation ◽  
Momentum Density

Study on Momentum Density of Electrons and Fermi Surface in Aluminum by Positron Annihilation

1992 ◽  
Vol 170 (1) ◽  
pp. 171-188 ◽  
Author(s):  
H. Nakashima ◽  
T. Kubota ◽  
H. Kondo ◽  
Y. Murakami ◽  
S. Tanigawa
Keyword(s):  
Fermi Surface ◽  
Positron Annihilation ◽  
Momentum Density ◽  
Density Of Electrons

Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation

1990 ◽  
Vol 59 (12) ◽  
pp. 4494-4502 ◽  
Author(s):  
Takeshi Kubota ◽  
Hitoshi Kondo ◽  
Kazuhiro Watanabe ◽  
Yasukazu Murakami ◽  
Yang-Koo Cho ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Positron Annihilation ◽  
Momentum Density ◽  
Density Of Electrons

Study on Momentum Density of Electrons and Fermi Surface in Magnesium by Positron Annihilation

1992 ◽  
Vol 170 (2) ◽  
pp. 491-507 ◽  
Author(s):  
H. Nakashima ◽  
T. Kubota ◽  
H. Kondo ◽  
S. Tanigawa
Keyword(s):  
Fermi Surface ◽  
Positron Annihilation ◽  
Momentum Density ◽  
Density Of Electrons

Positron 2D-Acar Experiments and Electron-Positron Momentum Density in YBa2Cu307−x

1991 ◽  
Vol 253 ◽  
Author(s):  
L.C. Smedskjaer ◽  
A. Bansil ◽  
U. Welp ◽  
Y. Fang ◽  
K.G. Bailey
Keyword(s):  
Fermi Surface ◽  
Single Crystal ◽  
Temperature Dependence ◽  
Positron Annihilation ◽  
Experimental Spectrum ◽  
Momentum Density ◽  
Band Theory ◽  
Electron Positron ◽  
Theory Framework

ABSTRACTWe discuss positron annihilation (2D-ACAR) measurements in the c-projection on an untwinned metallic single crystal of YBa2Cu3O7-x as a function of temperature, for five temperatures ranging from 30K to 300K. The measured 2D-ACAR intensities are interpreted in terms of the electron-positron momentum density obtained within the KKR-band theory framework. The temperature dependence of the 2D-ACAR spectra is used to extract a ‘background corrected’ experimental spectrum which is in remarkable accord with the corresponding band theory predictions, and displaysin particular clear signatures of the electron ridge Fermi surface.

Study on Momentum Density and Fermi Surface in Paramagnetic Cr and W by Positron Annihilation

1991 ◽  
Vol 168 (1) ◽  
pp. 179-191 ◽  
Author(s):  
T. Kubota ◽  
H. Kondo ◽  
H. Nakashima ◽  
Y. Murakami ◽  
S. Tanigawa
Keyword(s):  
Fermi Surface ◽  
Positron Annihilation ◽  
Momentum Density

Positron Annihilation with Core Electrons in the Noble Metals

1974 ◽  
Vol 52 (4) ◽  
pp. 336-339 ◽  
Author(s):  
E. H. Becker ◽  
A. G. Gould ◽  
E. M. D. Senicki ◽  
B. G. Hogg
Keyword(s):  
Simple Model ◽  
Fermi Surface ◽  
Single Crystals ◽  
Positron Annihilation ◽  
Angular Correlation ◽  
Noble Metals ◽  
Correlation Data ◽  
Core Electrons

Experimental angular correlation curves for identically oriented single crystals of copper, silver, and gold have been obtained using "a point geometry" apparatus. The differences between these angular correlation data are compared to the differences predicted using a simple model of the Fermi surface combined with calculations of the theoretical core distributions.

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