Chemical disorder effects in transport and magnetic properties of perovskite manganite

Subhayan Biswas; Sandip Chatterjee; P. Chatterjee; A. K. Nigam; S. K. De

doi:10.1557/JMR.2005.0114

Chemical disorder effects in transport and magnetic properties of perovskite manganite

Subhayan Biswas
, Sandip Chatterjee
, P. Chatterjee
, A. K. Nigam
, S. K. De

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

Abstract

The dependence of the novel properties observed in colossal magnetoresistance (CMR) materials, other than average ionic radii (r_A) and Mn valence ratio (Mn³⁺/Mn⁴⁺), was investigated through examination of the transport and magnetic properties of Pr_0.65 (Ca_0.7 Sr_0.3)_0.35 MnO₃, La_0.123 Pr_0.527 (Ca_0.8 Sr_0.2)_0.35M nO₃, and Pr_0.65 (Ca_0.866 Ba_0.134)_0.35 MnO₃. The average ionic radii (r_A) and valence ratio of all three samples have been kept equal The results of this investigation indicate a more intense role of the nature of individual A-site cation and the lattice mismatch. A remarkably large magnetoresistance of the order of 10⁸ at moderate magnetic field has been observed for Ba-doped sample.

Original language	English
Pages (from-to)	813-817
Number of pages	5
Journal	Journal of Materials Research
Volume	20
Issue number	4
DOIs	https://doi.org/10.1557/JMR.2005.0114
Publication status	Published - Apr 2005
Externally published	Yes

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title = "Chemical disorder effects in transport and magnetic properties of perovskite manganite",

abstract = "The dependence of the novel properties observed in colossal magnetoresistance (CMR) materials, other than average ionic radii (rA) and Mn valence ratio (Mn3+/Mn4+), was investigated through examination of the transport and magnetic properties of Pr0.65 (Ca0.7 Sr0.3)0.35 MnO3, La0.123 Pr0.527 (Ca0.8 Sr0.2)0.35M nO3, and Pr0.65 (Ca0.866 Ba0.134)0.35 MnO3. The average ionic radii (rA) and valence ratio of all three samples have been kept equal The results of this investigation indicate a more intense role of the nature of individual A-site cation and the lattice mismatch. A remarkably large magnetoresistance of the order of 108 at moderate magnetic field has been observed for Ba-doped sample.",

author = "Subhayan Biswas and Sandip Chatterjee and P. Chatterjee and Nigam, \{A. K.\} and De, \{S. K.\}",

year = "2005",

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doi = "10.1557/JMR.2005.0114",

language = "English",

volume = "20",

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TY - JOUR

T1 - Chemical disorder effects in transport and magnetic properties of perovskite manganite

AU - Biswas, Subhayan

AU - Chatterjee, Sandip

AU - Chatterjee, P.

AU - Nigam, A. K.

AU - De, S. K.

PY - 2005/4

Y1 - 2005/4

N2 - The dependence of the novel properties observed in colossal magnetoresistance (CMR) materials, other than average ionic radii (rA) and Mn valence ratio (Mn3+/Mn4+), was investigated through examination of the transport and magnetic properties of Pr0.65 (Ca0.7 Sr0.3)0.35 MnO3, La0.123 Pr0.527 (Ca0.8 Sr0.2)0.35M nO3, and Pr0.65 (Ca0.866 Ba0.134)0.35 MnO3. The average ionic radii (rA) and valence ratio of all three samples have been kept equal The results of this investigation indicate a more intense role of the nature of individual A-site cation and the lattice mismatch. A remarkably large magnetoresistance of the order of 108 at moderate magnetic field has been observed for Ba-doped sample.

AB - The dependence of the novel properties observed in colossal magnetoresistance (CMR) materials, other than average ionic radii (rA) and Mn valence ratio (Mn3+/Mn4+), was investigated through examination of the transport and magnetic properties of Pr0.65 (Ca0.7 Sr0.3)0.35 MnO3, La0.123 Pr0.527 (Ca0.8 Sr0.2)0.35M nO3, and Pr0.65 (Ca0.866 Ba0.134)0.35 MnO3. The average ionic radii (rA) and valence ratio of all three samples have been kept equal The results of this investigation indicate a more intense role of the nature of individual A-site cation and the lattice mismatch. A remarkably large magnetoresistance of the order of 108 at moderate magnetic field has been observed for Ba-doped sample.

UR - https://www.scopus.com/pages/publications/29044443339

U2 - 10.1557/JMR.2005.0114

DO - 10.1557/JMR.2005.0114

M3 - Article

AN - SCOPUS:29044443339

SN - 0884-2914

VL - 20

SP - 813

EP - 817

JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 4

ER -

Chemical disorder effects in transport and magnetic properties of perovskite manganite

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