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Titolo:
METAMAGNETISM IN ENPDIN AND EUAUIN
Autore:
POTTGEN R;
Indirizzi:
MAX PLANCK INST FESTKORPERFORSCH,HEISENBERGSTR 1 D-70569 STUTTGART GERMANY
Titolo Testata:
Journal of materials chemistry
fascicolo: 1, volume: 6, anno: 1996,
pagine: 63 - 67
SICI:
0959-9428(1996)6:1<63:MIEAE>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
R. Pottgen, "METAMAGNETISM IN ENPDIN AND EUAUIN", Journal of materials chemistry, 6(1), 1996, pp. 63-67

Abstract

EuPdIn and EuAuIn were prepared by reaction of the elemental components in tantalum tubes. They crystallize with the TiNiSi structure in space group Pnma and with Z=4 formula units per unit cell. Both structures were refined from single-crystal X-ray data: a=748.30(13) pm, b=447.20(8) pm, c=853.50(14) pm, V=0.28562(5) nm(3), wR2=0.0408, 449 F-2 values, 20 variables for EuPdIn; and a=755.2(2) pm, b=472.2(1) pm, c=842.3(2) pm, V=0.3004(2) nm(3), wR2=0.0470, 524 F-2 values, 20 variables for EuAuIn. Magnetic susceptibility measurements show Curie-Weiss behaviour above 40 K for both compounds with experimental magnetic momentsof 7.6(1) mu(B)/Eu (EuPdIn) and 7.5(1) mu(B)/Eu (EuAuIn), which are close to that of the free Eu2+ ion, namely mu(eff)=7.94 mu(B)/Eu. At anexternal field strength of 0.01 T, EuPdIn and EuAuIn order antiferromagnetically at 13.0(5) and 21.0(5) K, respectively. Magnetization measurements at 5 K indicate metamagnetism with a magnetic moment of 5.9(1) mu(B)/Eu at 5.5 T for both compounds. The critical fields amount to 3.1(1) T for EuPdIn and 0.25(2) T for EuAuIn. Both compounds are good metallic conductors with specific resistivities of 23 (EuPdIn) and 96 mu Omega cm (EuAuIn) at room temperature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 13:15:23