Автор |
E Gratz |
Автор |
V Sechovsky |
Автор |
E P Wohlfarth |
Автор |
H R Kirchmayr |
Дата выпуска |
1980-12-01 |
dc.description |
The magnetic susceptibility, magnetisation, electrical resistivity and thermopower were measured for the compounds (Gd,Y)<sub>4</sub>Co<sub>3</sub>, which form a complete solid solution. The localised f electrons of Gd exert a molecular field on the itinerant d electrons of Co, causing exchange splitting for the latter above about 70% Gd. Below this concentration the magnetic moment of Co is small, about 0.3 mu <sub>B</sub> per formula unit and arises from localised d electrons on certain Co sites. The exchange integral evaluated using the model developed by Bloch et al. (1975) characterising the molecular field varies rapidly for the Y rich compounds reflecting a rapid variation of the susceptibility of Y<sub>4</sub>Co<sub>3</sub> with temperature. The electrical data show clearly the profound influence of the itinerant d electrons in causing high-temperature curvatures and of the localised f electrons in causing kinks at the Curie temperatures. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The magnetic and transport properties of the compounds (Gd, Y)<sub>4</sub>Co<sub>3</sub> |
Тип |
paper |
DOI |
10.1088/0305-4608/10/12/021 |
Print ISSN |
0305-4608 |
Журнал |
Journal of Physics F: Metal Physics |
Том |
10 |
Первая страница |
2819 |
Последняя страница |
2829 |
Аффилиация |
E Gratz; Inst. fur Experimentalphys., Tech. Univ. Wien, Wien, Austria |
Аффилиация |
V Sechovsky; Inst. fur Experimentalphys., Tech. Univ. Wien, Wien, Austria |
Аффилиация |
E P Wohlfarth; Inst. fur Experimentalphys., Tech. Univ. Wien, Wien, Austria |
Аффилиация |
H R Kirchmayr; Inst. fur Experimentalphys., Tech. Univ. Wien, Wien, Austria |
Выпуск |
12 |