Lattice effects on magnetic and transport properties in la 0.67-xGdxSr0.33CoO3

C. J. Zhang; B. H. Kim; J. S. Kim; Y. W. Park

doi:10.1117/12.623732

Lattice effects on magnetic and transport properties in la 0.67-xGdxSr0.33CoO3

C. J. Zhang
, B. H. Kim
, J. S. Kim
, Y. W. Park

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

The lattice effects on the magnetic and transport properties in La _0.67-xGd_xSr_0.33CoO₃ series are studied. The introduction of smaller Gd³⁺ ions leads to an enhanced mismatch between the La-O layer and the CoO₂ layer and a decrease of the tolerance factor t. The spin-state of trivalent Co ion transits to low-spin state with the decrease of Co-O bond length. The doping of Gd³⁺ drives the system from the cluster-glass state to the spin-glass state and progressively decreases the Curie temperature. At high Gd³⁺ doping content, an interesting negative magnetoresistance occurs at low temperature.

Original language	English
Title of host publication	Proceedings of SPIE the International Society for Optical Engineering
Pages	1-9
Number of pages	9
Volume	5932
DOIs	https://doi.org/10.1117/12.623732
State	Published - Dec 1 2005
Externally published	Yes

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title = "Lattice effects on magnetic and transport properties in la 0.67-xGdxSr0.33CoO3",

abstract = "The lattice effects on the magnetic and transport properties in La 0.67-xGdxSr0.33CoO3 series are studied. The introduction of smaller Gd3+ ions leads to an enhanced mismatch between the La-O layer and the CoO2 layer and a decrease of the tolerance factor t. The spin-state of trivalent Co ion transits to low-spin state with the decrease of Co-O bond length. The doping of Gd3+ drives the system from the cluster-glass state to the spin-glass state and progressively decreases the Curie temperature. At high Gd3+ doping content, an interesting negative magnetoresistance occurs at low temperature.",

author = "Zhang, \{C. J.\} and Kim, \{B. H.\} and Kim, \{J. S.\} and Park, \{Y. W.\}",

year = "2005",

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language = "English",

volume = "5932",

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T1 - Lattice effects on magnetic and transport properties in la 0.67-xGdxSr0.33CoO3

AU - Zhang, C. J.

AU - Kim, B. H.

AU - Kim, J. S.

AU - Park, Y. W.

PY - 2005/12/1

Y1 - 2005/12/1

N2 - The lattice effects on the magnetic and transport properties in La 0.67-xGdxSr0.33CoO3 series are studied. The introduction of smaller Gd3+ ions leads to an enhanced mismatch between the La-O layer and the CoO2 layer and a decrease of the tolerance factor t. The spin-state of trivalent Co ion transits to low-spin state with the decrease of Co-O bond length. The doping of Gd3+ drives the system from the cluster-glass state to the spin-glass state and progressively decreases the Curie temperature. At high Gd3+ doping content, an interesting negative magnetoresistance occurs at low temperature.

AB - The lattice effects on the magnetic and transport properties in La 0.67-xGdxSr0.33CoO3 series are studied. The introduction of smaller Gd3+ ions leads to an enhanced mismatch between the La-O layer and the CoO2 layer and a decrease of the tolerance factor t. The spin-state of trivalent Co ion transits to low-spin state with the decrease of Co-O bond length. The doping of Gd3+ drives the system from the cluster-glass state to the spin-glass state and progressively decreases the Curie temperature. At high Gd3+ doping content, an interesting negative magnetoresistance occurs at low temperature.

UR - https://www.scopus.com/pages/publications/31744442537

U2 - 10.1117/12.623732

DO - 10.1117/12.623732

M3 - Conference contribution

VL - 5932

SP - 1

EP - 9

BT - Proceedings of SPIE the International Society for Optical Engineering

ER -

Lattice effects on magnetic and transport properties in la 0.67-xGdxSr0.33CoO3

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