Magnetic and electric properties of Sr2FeMoO6

R. D. Sánchez; D. Niebieskikwiat; A. Caneiro; L. Morales; M. Vásquez-Mansilla; F. Rivadulla; L. E. Hueso

doi:10.1016/S0304-8853(00)00640-5

Magnetic and electric properties of Sr₂FeMoO₆

R. D. Sánchez, D. Niebieskikwiat, A. Caneiro, L. Morales, M. Vásquez-Mansilla, F. Rivadulla, L. E. Hueso

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9 Citas (Scopus)

Resumen

We present electrical resistivity (p) and magnetic susceptibility (j) data of the Sr₂FeMoO₆ double perovskite. We found that the as prepared sample shows semiconducting p(T) in the whole temperature range and a magnetoresistance behavior typical of electron tunneling at the grain boundaries (gb). When the oxygen of the gb is removed p drops one order of magnitude. Below the magnetic ordering temperature T_c 405 K and above 590 K. this sample is metallic (dp/dT > 0), while for Tc < T < 590 K we observe a weak localization. The x(T) data follow the Curie-Weiss law only in a short temperature range above Tc.

Idioma original	Inglés
Páginas (desde-hasta)	895-897
Número de páginas	3
Publicación	Journal of Magnetism and Magnetic Materials
Volumen	226-230
N.º	PART I
DOI	https://doi.org/10.1016/S0304-8853(00)00640-5
Estado	Publicada - 2001
Publicado de forma externa	Sí

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title = "Magnetic and electric properties of Sr2FeMoO6",

abstract = "We present electrical resistivity (p) and magnetic susceptibility (j) data of the Sr2FeMoO6 double perovskite. We found that the as prepared sample shows semiconducting p(T) in the whole temperature range and a magnetoresistance behavior typical of electron tunneling at the grain boundaries (gb). When the oxygen of the gb is removed p drops one order of magnitude. Below the magnetic ordering temperature Tc 405 K and above 590 K. this sample is metallic (dp/dT > 0), while for Tc < T < 590 K we observe a weak localization. The x(T) data follow the Curie-Weiss law only in a short temperature range above Tc.",

keywords = "Electrical resistivity, Grain boundaries, Magnetoresistance",

author = "S{\'a}nchez, {R. D.} and D. Niebieskikwiat and A. Caneiro and L. Morales and M. V{\'a}squez-Mansilla and F. Rivadulla and Hueso, {L. E.}",

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doi = "10.1016/S0304-8853(00)00640-5",

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TY - JOUR

T1 - Magnetic and electric properties of Sr2FeMoO6

AU - Sánchez, R. D.

AU - Niebieskikwiat, D.

AU - Caneiro, A.

AU - Morales, L.

AU - Vásquez-Mansilla, M.

AU - Rivadulla, F.

AU - Hueso, L. E.

PY - 2001

Y1 - 2001

N2 - We present electrical resistivity (p) and magnetic susceptibility (j) data of the Sr2FeMoO6 double perovskite. We found that the as prepared sample shows semiconducting p(T) in the whole temperature range and a magnetoresistance behavior typical of electron tunneling at the grain boundaries (gb). When the oxygen of the gb is removed p drops one order of magnitude. Below the magnetic ordering temperature Tc 405 K and above 590 K. this sample is metallic (dp/dT > 0), while for Tc < T < 590 K we observe a weak localization. The x(T) data follow the Curie-Weiss law only in a short temperature range above Tc.

AB - We present electrical resistivity (p) and magnetic susceptibility (j) data of the Sr2FeMoO6 double perovskite. We found that the as prepared sample shows semiconducting p(T) in the whole temperature range and a magnetoresistance behavior typical of electron tunneling at the grain boundaries (gb). When the oxygen of the gb is removed p drops one order of magnitude. Below the magnetic ordering temperature Tc 405 K and above 590 K. this sample is metallic (dp/dT > 0), while for Tc < T < 590 K we observe a weak localization. The x(T) data follow the Curie-Weiss law only in a short temperature range above Tc.

KW - Electrical resistivity

KW - Grain boundaries

KW - Magnetoresistance

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U2 - 10.1016/S0304-8853(00)00640-5

DO - 10.1016/S0304-8853(00)00640-5

M3 - Artículo

AN - SCOPUS:33748697843

SN - 0304-8853

VL - 226-230

SP - 895

EP - 897

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - PART I