Electrical and Magnetic Properties of Quaternary Rare Earth Thiophosphate: K4Sm2[PS4]2[P2S6]
Author
dc.contributor.author
Manríquez Castro, Víctor
es_CL
Author
dc.contributor.author
Galdámez Silva, Antonio
es_CL
Author
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Cerda Monje, Andrea
es_CL
Author
dc.contributor.author
Peña, Octavio
Author
dc.contributor.author
Ávila, Ricardo E.
es_CL
Admission date
dc.date.accessioned
2014-01-08T12:02:56Z
Available date
dc.date.available
2014-01-08T12:02:56Z
Publication date
dc.date.issued
2009
Cita de ítem
dc.identifier.citation
J. Braz. Chem. Soc., Vol. 20, No. 8, 1499-1503,
en_US
Identifier
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0103-5053
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/119655
Abstract
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O tiofosfato quaternário de metal alcalino e terra rara K4Sm2[PS4]2[P2S6] foi sintetizado pelo método cerâmico e caracterizado por difratometria de raios X de pó (XRD), microscopia eletrônica de varredura com microanálise de raios X (SEM-EDX), medidas de impedância eletroquímica e medidas magnéticas. A estrutura cristalina consiste de camadas de 2∞Sm2[PS4]2[P2S6]4- separadas por cátions K+. As medidas de condutividade elétrica indicam que o composto é um semicondutor com uma resistividade de 1,0 x 1011 Ω cm. O momento magnético, obtido a partir de χ-1 versus T a baixa temperatura, é igual a 0,57 μB.
The quaternary alkali metal, rare earth thiophosphate phase K4Sm2[PS4]2[P2S6] was synthesized by ceramic method and characterized by powder X-ray diffraction (XRD), SEM-EDX scanning electron microscope-microprobe analyses, electrochemical impedance and magnetic measurements. The crystal structure consists of layers of 2∞Sm2[PS4]2[P2S6]4- separated by K+ cations. The electrical conductivity measurements indicate that the compound is a semiconductor with a resistivity of 1.0 x1011 W cm. The magnetic moment, evaluated from c-1 versus T at low temperature is 0.57 µB.