Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
MAGNETIC EXCITATIONS AROUND MAGNETIC BRILLOUIN-ZONE CENTER IN ANTIFERROMAGNETIC MN(13.7-PERCENT-NI) ALLOY
Autore:
JANKOWSKAKISIELINSKA J; MIKKE K; MILCZAREK JJ;
Indirizzi:
INST ATOM ENERGY PL-05400 OTWOCK SWIERK POLAND
Titolo Testata:
Journal of physics. Condensed matter
fascicolo: 48, volume: 9, anno: 1997,
pagine: 10761 - 10776
SICI:
0953-8984(1997)9:48<10761:MEAMBC>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIN-DENSITY WAVE; LATTICE DISTORTION; ITINERANT ANTIFERROMAGNET; TEMPERATURE-DEPENDENCE; 3-PERCENT-CU) ALLOY; MN; GAMMA-MN(10-PERCENT-FE; MANGANESE; DYNAMICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
J. Jankowskakisielinska et al., "MAGNETIC EXCITATIONS AROUND MAGNETIC BRILLOUIN-ZONE CENTER IN ANTIFERROMAGNETIC MN(13.7-PERCENT-NI) ALLOY", Journal of physics. Condensed matter, 9(48), 1997, pp. 10761-10776

Abstract

Our studies of the itinerant antiferromagnetic gamma-Mn-based alloys are extended to investigate magnetic excitations in a Mn(13.7%Ni) alloy. The composition of the present sample being close to the part of the phase diagram where a number of structural phase transitions take place, the basic aim of this work is the search for the effect of these transitions on spin dynamics. This is the first study of the Mn-Ni alloy in the fct (c < a) phase. The parameters of the spin wave dispersion relation and their temperature dependence are determined and compared with those for Mn-Ni alloys in the fct (c > a) and fcc phases. We obtain the concentration dependence of the low-temperature parameters ofthe spin wave dispersion relation which differs essentially from thatfound for the Mn-Fe alloys. In particular the change of the spin waveparameters in the vicinity of the phase transitions in Mn-Ni alloys is remarkable.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 06:43:56