Автор |
B L Gallagher |
Автор |
D Greig |
Автор |
M A Howson |
Автор |
A A M Croxon |
Дата выпуска |
1983-01-01 |
dc.description |
Experimental results are presented for the Hall coefficients of a number of amorphous Cu-Zr, Cu-Ti and Cu-Hf alloys in the temperature range 4.2-270K. With the exception of Cu<sub>92</sub>Zr<sub>8</sub>, all these alloys are found to have positive Hall coefficients and none show any significant temperature dependence. The fact that R<sub>H</sub> is temperature independent can probably be understood as a direct consequence of the isotropic nature of the scattering. The positive values cannot be understood on the basis of nearly free electron ideas nor within the random phase model if hybridisation is neglected. It is therefore argued that the positive values are probably due to the s-d hybridisation leading to negative group velocities at the Fermi level. Using this approach a qualitative account can be made of the compositional dependence of R<sub>H</sub> in the alloys used here and in a number of related systems. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The positive Hall coefficients of amorphous transition-metal alloys |
Тип |
paper |
DOI |
10.1088/0305-4608/13/1/015 |
Print ISSN |
0305-4608 |
Журнал |
Journal of Physics F: Metal Physics |
Том |
13 |
Первая страница |
119 |
Последняя страница |
128 |
Аффилиация |
B L Gallagher; Dept. of Phys., Univ. of Leeds, Leeds, UK |
Аффилиация |
D Greig; Dept. of Phys., Univ. of Leeds, Leeds, UK |
Аффилиация |
M A Howson; Dept. of Phys., Univ. of Leeds, Leeds, UK |
Аффилиация |
A A M Croxon; Dept. of Phys., Univ. of Leeds, Leeds, UK |
Выпуск |
1 |