Thermal properties of La0.7Ca0.2Sr0.1MnO3:PdO composites

Ramesh Chandra Bhatt; S. O. Manjunatha; Ashok Rao; Riya Thomas; V. P.S. Awana; C. F. Lin; Y. K. Kuo

doi:10.1016/j.physb.2018.09.011

Thermal properties of La_0.7Ca_0.2Sr_0.1MnO₃:PdO composites

Ramesh Chandra Bhatt
, S. O. Manjunatha
, Ashok Rao^*
, Riya Thomas
, V. P.S. Awana
, C. F. Lin
, Y. K. Kuo

^*Corresponding author for this work

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

Abstract

A systematic study on the thermal conductivity, Seebeck coefﬁcient and specific heat of La_0.7Ca_0.2Sr_0.1MnO₃:PdO composites is presented. Solid state reaction procedure was employed to synthesis the samples. It is seen from thermal conductivity (κ(T)) studies that the samples exhibit a slope change nature close to their corresponding magnetic phase transition temperature, T_C. The overall magnitude of κ is observed to decrease with increasing Pd concentration. The analysis of Seebeck coefficient data, S(T) versus temperature, T was done using Mott's polaron hopping model reveals that the electron-magnon scattering is governing the low temperature region. The temperature dependent specific heat C_P(T) is analyzed to determine the entropy change (ΔS) during the magnetic phase transition.

Original language	English
Pages (from-to)	117-121
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	550
DOIs	https://doi.org/10.1016/j.physb.2018.09.011
Publication status	Published - 01-12-2018

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2018.09.011

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@article{9daf849e1f554414939fa176f3133417,

title = "Thermal properties of La0.7Ca0.2Sr0.1MnO3:PdO composites",

abstract = "A systematic study on the thermal conductivity, Seebeck coefﬁcient and specific heat of La0.7Ca0.2Sr0.1MnO3:PdO composites is presented. Solid state reaction procedure was employed to synthesis the samples. It is seen from thermal conductivity (κ(T)) studies that the samples exhibit a slope change nature close to their corresponding magnetic phase transition temperature, TC. The overall magnitude of κ is observed to decrease with increasing Pd concentration. The analysis of Seebeck coefficient data, S(T) versus temperature, T was done using Mott's polaron hopping model reveals that the electron-magnon scattering is governing the low temperature region. The temperature dependent specific heat CP(T) is analyzed to determine the entropy change (ΔS) during the magnetic phase transition.",

author = "Bhatt, \{Ramesh Chandra\} and Manjunatha, \{S. O.\} and Ashok Rao and Riya Thomas and Awana, \{V. P.S.\} and Lin, \{C. F.\} and Kuo, \{Y. K.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = dec,

day = "1",

doi = "10.1016/j.physb.2018.09.011",

language = "English",

volume = "550",

pages = "117--121",

journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Thermal properties of La0.7Ca0.2Sr0.1MnO3:PdO composites

AU - Bhatt, Ramesh Chandra

AU - Manjunatha, S. O.

AU - Rao, Ashok

AU - Thomas, Riya

AU - Awana, V. P.S.

AU - Lin, C. F.

AU - Kuo, Y. K.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - A systematic study on the thermal conductivity, Seebeck coefﬁcient and specific heat of La0.7Ca0.2Sr0.1MnO3:PdO composites is presented. Solid state reaction procedure was employed to synthesis the samples. It is seen from thermal conductivity (κ(T)) studies that the samples exhibit a slope change nature close to their corresponding magnetic phase transition temperature, TC. The overall magnitude of κ is observed to decrease with increasing Pd concentration. The analysis of Seebeck coefficient data, S(T) versus temperature, T was done using Mott's polaron hopping model reveals that the electron-magnon scattering is governing the low temperature region. The temperature dependent specific heat CP(T) is analyzed to determine the entropy change (ΔS) during the magnetic phase transition.

AB - A systematic study on the thermal conductivity, Seebeck coefﬁcient and specific heat of La0.7Ca0.2Sr0.1MnO3:PdO composites is presented. Solid state reaction procedure was employed to synthesis the samples. It is seen from thermal conductivity (κ(T)) studies that the samples exhibit a slope change nature close to their corresponding magnetic phase transition temperature, TC. The overall magnitude of κ is observed to decrease with increasing Pd concentration. The analysis of Seebeck coefficient data, S(T) versus temperature, T was done using Mott's polaron hopping model reveals that the electron-magnon scattering is governing the low temperature region. The temperature dependent specific heat CP(T) is analyzed to determine the entropy change (ΔS) during the magnetic phase transition.

UR - https://www.scopus.com/pages/publications/85054886074

UR - https://www.scopus.com/pages/publications/85054886074#tab=citedBy

U2 - 10.1016/j.physb.2018.09.011

DO - 10.1016/j.physb.2018.09.011

M3 - Article

AN - SCOPUS:85054886074

SN - 0921-4526

VL - 550

SP - 117

EP - 121

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Thermal properties of La_0.7Ca_0.2Sr_0.1MnO₃:PdO composites

Abstract

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