Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
801 6 |
Ultima descărcare din IBN: 2023-12-31 11:42 |
SM ISO690:2012 BURZO, Emil. Electronic and magnetic properties of cubic lave phase compounds. In: Moldavian Journal of the Physical Sciences, 2005, nr. 1(4), pp. 74-85. ISSN 1810-648X. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Moldavian Journal of the Physical Sciences | ||||||
Numărul 1(4) / 2005 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
|
||||||
Pag. 74-85 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
Band structure calculations and magnetic measurements were performed on RM2-based
compounds, where R is a rare-earth or yttrium and M = Fe, Co or Ni. The exchange enhanced
paramagnets as Y(CoxNi1-x)2, at T 10 K, show a T2
type dependence of magnetic
susceptibilities. Above a characteristic temperature, T*
, a Curie-Weiss behaviour was
evidenced. The computed mean square amplitude of spin fluctuations, at high temperatures,
describes well the experimentally determined effective moments. The transition of cobalt
atoms from nonmagnetic to magnetic state was analysed. A small nickel moment is induced
in RNi2 compounds with magnetic rare-earths. The exchange interactions influence little iron
moments. The different contributions to the R5d bands polarizations are also analyzed. |
||||||
|