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Magnetocaloric effect of Gd-Tb alloys: influence of the sample shape anisotropy
- 1.0368409 - FZÚ 2012 RIV DE eng J - Journal Article
Kaštil, J. - Javorský, J. - Kamarád, Jiří - Šantavá, Eva
Magnetocaloric effect of Gd-Tb alloys: influence of the sample shape anisotropy.
Applied Physics A - Materials Science & Processing. Roč. 104, č. 1 (2011), s. 205-209. ISSN 0947-8396. E-ISSN 1432-0630
R&D Projects: GA ČR GA202/09/0030
Institutional research plan: CEZ:AV0Z10100521
Keywords : magnetic refrigeration * magnetization * specific heat * magnetocaloric effect * Gd-Tb alloy * shape anisotropy
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.630, year: 2011
The magnetocaloric effect of Gd(1-x) Tb (x) alloys with x=0.00, 0.10, 0.20, 0.25, 0.30 and 0.40 was studied. The magnetic ordering temperatures were determined from the magnetization measurement. The data obtained from magnetization and specific-heat measurements as well as by the direct measurement are well comparable within their experimental errors. The values of Delta T (ad) are in the proximity of 2.5 K for field change of 1 T and all studied concentrations. The dependence of magnetocaloric effect on the sample shape anisotropy was documented by the magnetization measurement as well as by the direct measurement.
Permanent Link: http://hdl.handle.net/11104/0006715
Number of the records: 1