Автор |
M Ocko |
Автор |
E Babic |
Автор |
H H Liebermann |
Дата выпуска |
1990-09-17 |
dc.description |
The thermopower of the Ni<sub>x</sub>B<sub>100-x-y</sub>Si<sub>y</sub> amorphous alloy system with a metalloid concentration ranging from 20 to 39 at.% has been measured from 77 up to 300 K. The thermopower, as well as the specific heat, clearly shows filling of the d band on increasing metalloid content. The thermopower is negative for x>or approximately=70 and increases rapidly as x decreases. For x<or=67 the thermopower is positive and decreases slightly with decrease in x. The high-temperature slope of the thermopower, the residual resistivity and the room-temperature coefficient of resistivity are simultaneously explained within the framework of the extended Ziman theory. In performing the corresponding calculations the authors have chosen the phase shifts deduced in such a way that they reflect the d-band filling on alloying (deduced from the specific heat measurements). The have also used Hall effect measurements which determine the number of conduction electrons. For x>or=78 the Ziman contribution to the thermopower is concealed by the large extra term which can be ascribed to magnetic fluctuations. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Thermopower of Ni<sub>x</sub>B<sub>100-x-y</sub>Si<sub>y</sub> amorphous alloys |
Тип |
paper |
DOI |
10.1088/0953-8984/2/37/006 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
2 |
Первая страница |
7613 |
Последняя страница |
7622 |
Аффилиация |
M Ocko; Inst. of Phys., Zagreb Univ., Yugoslavia |
Аффилиация |
E Babic; Inst. of Phys., Zagreb Univ., Yugoslavia |
Аффилиация |
H H Liebermann; Inst. of Phys., Zagreb Univ., Yugoslavia |
Выпуск |
37 |