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Critical exponents and amplitudes of the ferromagnetic transition in La0.1Ba0.9VS3 (Articolo in rivista)

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Critical exponents and amplitudes of the ferromagnetic transition in La0.1Ba0.9VS3 (Articolo in rivista) (literal)

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Cabassi R. a; Bolzoni F. a; Gauzzi A. b; Licci F. a (2006)
Critical exponents and amplitudes of the ferromagnetic transition in La0.1Ba0.9VS3
in Physical review. B, Condensed matter and materials physics (Online); American Physical Society (APS), College Pk (Stati Uniti d'America)
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a CNR, Ist IMEM, Area Sci, I-43100 Parma, Italy; b Univ Paris 06, Inst mineral & Phys Mil Condenses, F-75015 Paris, France (literal)

Titolo

Critical exponents and amplitudes of the ferromagnetic transition in La0.1Ba0.9VS3 (literal)

Abstract

To study the origin of the magnetic transition in BaVS3, we measured the dc magnetization on La0.1Ba0.9VS3 sintered samples near the ferromagnetic transition. Effective critical exponents and amplitudes are obtained by means of standard modified Arrot plots and the Kouvel-Fisher method, while asymptotic critical exponents and amplitudes are obtained by means of \"correction to scaling\" analysis. The two methods yield similar results, but the latter is superior with respect to the achieved uncertainty. The obtained results indicate that the universality class of magnetic interactions driving the transition changes from short to long range when cooling through T-c. (literal)

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