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

Instituto Bolseiro
Consejo Nacional de Investigaciones Científicas y Técnicas
Univ. Santiago Compostela, 15782 S.

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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 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.

Original language	English
Pages (from-to)	895-897
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	226-230
Issue number	PART I
DOIs	https://doi.org/10.1016/S0304-8853(00)00640-5
State	Published - 2001
Externally published	Yes

Keywords

Electrical resistivity
Grain boundaries
Magnetoresistance

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10.1016/S0304-8853(00)00640-5

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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.\}",

year = "2001",

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

language = "Ingl{\'e}s",

volume = "226-230",

pages = "895--897",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "PART I",

}

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

UR - https://www.scopus.com/pages/publications/33748697843

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

ER -

Magnetic and electric properties of Sr₂FeMoO₆

Abstract

Keywords

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