Structural, transport and magnetic properties of Sr2RuTiO 6

S. Savitha Pillai; P. N. Santhosh; P. John Thomas; F. Tuna; K. G. Suresh

doi:10.1016/j.ssc.2010.05.026

Structural, transport and magnetic properties of Sr2RuTiO 6

S. Savitha Pillai, P. N. Santhosh, P. John Thomas, F. Tuna, K. G. Suresh

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

Abstract

The double perovskite, Sr2RuTiO6 has been studied by X-ray powder diffraction, magnetizations and magnetoresistance techniques. Rietveld analysis of the X-ray diffraction shows that the sample crystallizes in tetragonal structure with space group I4mcm and there is no indication of long range Ru/Ti cation ordering. The magnetic studies point towards the existence of magnetic polarons in the paramagnetic state with a weak ferromagnetic transition at 145 K. The temperature dependent magnetoresistance studies reveal an unusual cross over from positive to negative magnetoresistance at low temperature (∼15 K). The complex magnetotransport properties of Sr 2RuTiO6 arise from the competing ferromagnetic and antiferromagnetic superexchange interactions between Ru ions via Ti/O ions, initiated by the B-site cation disorder. © 2010 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1450-1452
Number of pages	2
Journal	Solid State Communications
Volume	150
Issue number	31-32
DOIs	https://doi.org/10.1016/j.ssc.2010.05.026
Publication status	Published - Aug 2010

Keywords

A. Double perovskite materials
B. Magnetoresistance
C. Transport properties
D. Structural properties

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10.1016/j.ssc.2010.05.026

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title = "Structural, transport and magnetic properties of Sr2RuTiO 6",

abstract = "The double perovskite, Sr2RuTiO6 has been studied by X-ray powder diffraction, magnetizations and magnetoresistance techniques. Rietveld analysis of the X-ray diffraction shows that the sample crystallizes in tetragonal structure with space group I4mcm and there is no indication of long range Ru/Ti cation ordering. The magnetic studies point towards the existence of magnetic polarons in the paramagnetic state with a weak ferromagnetic transition at 145 K. The temperature dependent magnetoresistance studies reveal an unusual cross over from positive to negative magnetoresistance at low temperature (∼15 K). The complex magnetotransport properties of Sr 2RuTiO6 arise from the competing ferromagnetic and antiferromagnetic superexchange interactions between Ru ions via Ti/O ions, initiated by the B-site cation disorder. {\textcopyright} 2010 Elsevier Ltd. All rights reserved.",

keywords = "A. Double perovskite materials, B. Magnetoresistance, C. Transport properties, D. Structural properties",

author = "{Savitha Pillai}, S. and Santhosh, {P. N.} and {John Thomas}, P. and F. Tuna and Suresh, {K. G.}",

year = "2010",

month = aug,

doi = "10.1016/j.ssc.2010.05.026",

language = "English",

volume = "150",

pages = "1450--1452",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier BV",

number = "31-32",

}

TY - JOUR

T1 - Structural, transport and magnetic properties of Sr2RuTiO 6

AU - Savitha Pillai, S.

AU - Santhosh, P. N.

AU - John Thomas, P.

AU - Tuna, F.

AU - Suresh, K. G.

PY - 2010/8

Y1 - 2010/8

N2 - The double perovskite, Sr2RuTiO6 has been studied by X-ray powder diffraction, magnetizations and magnetoresistance techniques. Rietveld analysis of the X-ray diffraction shows that the sample crystallizes in tetragonal structure with space group I4mcm and there is no indication of long range Ru/Ti cation ordering. The magnetic studies point towards the existence of magnetic polarons in the paramagnetic state with a weak ferromagnetic transition at 145 K. The temperature dependent magnetoresistance studies reveal an unusual cross over from positive to negative magnetoresistance at low temperature (∼15 K). The complex magnetotransport properties of Sr 2RuTiO6 arise from the competing ferromagnetic and antiferromagnetic superexchange interactions between Ru ions via Ti/O ions, initiated by the B-site cation disorder. © 2010 Elsevier Ltd. All rights reserved.

AB - The double perovskite, Sr2RuTiO6 has been studied by X-ray powder diffraction, magnetizations and magnetoresistance techniques. Rietveld analysis of the X-ray diffraction shows that the sample crystallizes in tetragonal structure with space group I4mcm and there is no indication of long range Ru/Ti cation ordering. The magnetic studies point towards the existence of magnetic polarons in the paramagnetic state with a weak ferromagnetic transition at 145 K. The temperature dependent magnetoresistance studies reveal an unusual cross over from positive to negative magnetoresistance at low temperature (∼15 K). The complex magnetotransport properties of Sr 2RuTiO6 arise from the competing ferromagnetic and antiferromagnetic superexchange interactions between Ru ions via Ti/O ions, initiated by the B-site cation disorder. © 2010 Elsevier Ltd. All rights reserved.

KW - A. Double perovskite materials

KW - B. Magnetoresistance

KW - C. Transport properties

KW - D. Structural properties

U2 - 10.1016/j.ssc.2010.05.026

DO - 10.1016/j.ssc.2010.05.026

M3 - Article

SN - 0038-1098

VL - 150

SP - 1450

EP - 1452

JO - Solid State Communications

JF - Solid State Communications

IS - 31-32

ER -

Structural, transport and magnetic properties of Sr2RuTiO 6

Abstract

Keywords

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