Magnetic properties of Al-Gd-Ni orthorhombic compounds
| Autor(en): | Coldea, M Pop, V Neumann, M Isnard, O Pascut, LG |
Stichwörter: | Chemistry; Chemistry, Physical; CRYSTAL; GADOLINIUM; INTERMETALLIC COMPOUNDS; magnetization; Materials Science; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; PHASES; rare-earth transition metal compounds; RAY PHOTOELECTRON-SPECTROSCOPY; spin fluctuations; TEMPERATURE; XPS spectra | Erscheinungsdatum: | 2005 | Herausgeber: | ELSEVIER SCIENCE SA | Enthalten in: | JOURNAL OF ALLOYS AND COMPOUNDS | Band: | 390 | Ausgabe: | 1-2 | Startseite: | 16 | Seitenende: | 20 | Zusammenfassung: | The magnetic properties of the Al4GdNi, Al2GdNi and AlGd2Ni2, compounds have been investigated using magnetic measurements in the temperature range 4-800 K and magnetic fields up to 9 T and X-ray photoelectron spectroscopy at room temperature. The compounds Al4GdNi and AlGd2Ni2 order antiferromagnetically at T-N, = 20 and 25 K, respectively, and AIGdNi orders ferromagnetically at T-c = 39 K. The results are discussed in terms of the Ruderinan-Kittel-Kasuya-Yosida theory, the polarization of 5d electrons by the local exchange interaction 4f-5d and the spin fluctuations on Ni sites. (C) 2004 Elsevier B.V. All rights reserved. |
ISSN: | 09258388 | DOI: | 10.1016/j.jallcom.2004.08.024 |
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