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Titolo:
NEUTRON POWDER DIFFRACTION STUDY OF THE ANTIFERROMAGNETIC COMPOUND TB2PD2.05SN0.95
Autore:
LAFFARGUE D; ROISNEL T; CHEVALIER B; BOUREE F;
Indirizzi:
CEA SACLAY,LAB LEON BRILLOUIN,CNRS F-91191 GIF SUR YVETTE FRANCE CEA SACLAY,LAB LEON BRILLOUIN,CNRS F-91191 GIF SUR YVETTE FRANCE UNIV BORDEAUX 1,INST CHIM MAT CONDENSEE BORDEAUX,CNRS UPR 9048 F-33608 PESSAC FRANCE
Titolo Testata:
Journal of alloys and compounds
, volume: 262, anno: 1997,
pagine: 219 - 224
SICI:
0925-8388(1997)262:<219:NPDSOT>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
SN-119 MOSSBAUER-SPECTROSCOPY; MAGNETIC-STRUCTURES; NI; RH; PD;
Keywords:
NEUTRON POWDER DIFFRACTION; MAGNETIC STRUCTURE; ANTIFERROMAGNETISM; INTERMETALLIC COMPOUND;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
D. Laffargue et al., "NEUTRON POWDER DIFFRACTION STUDY OF THE ANTIFERROMAGNETIC COMPOUND TB2PD2.05SN0.95", Journal of alloys and compounds, 262, 1997, pp. 219-224

Abstract

Magnetic measurements and neutron diffraction experiments have been performed on a Tb2Pd2.05Sn0.95 polycrystalline sample. Two antiferromagnetic transitions are obtained at T-N = 27.3(2) K and T-2 = 20.8(5) K,respectively. The magnetic structure between T-N and T-2 is characterized by an incommensurate wave vector k(1) = (k(x) k(x) 1/2) (with a continuous decrease of the incommensurate component k(x) from k(x) = 0.115(5) at T = 26.3 K to k(x) = 0.070(5) at T = 20.8 K). Below T-2, a commensurate magnetic structure is observed, with k(2) = (0 0 1/2) wavevector (k(x) locked to zero). This low temperature magnetic structureis described as a non-collinear arrangement of terbium magnetic moments along the [110] and [1(1) over bar0$] directions of the tetragonal unit cell, according to the Gamma(10) irreducible representation of the wave vector group. The value of the ordered magnetic moment is equalto 8.70(5) mu(B)/Tb3+ at T = 1.5 K. (C) 1997 Elsevier Science S.A.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 02:18:31