Electrical and thermal transport properties of Dy0.95Pr 0.05Ba2(Cu1-x Mx)3O 7-δ with (M=Fe, Co, Ni and Zn) bulk superconductors

M. Geetha, Ashok Rao, M. Thukaram, S. K. Agarwal, Ramesh Chandra Bhatt, Kriti Tyagi, Y. K. Kuo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the present communication, measurements of transition temperature, thermal conductivity, thermoelectric power and specific heat have been carried out on pristine and co-doped samples of Dy0.95Pr 0.05Ba2(Cu0.98 M0.02) 3O7-δ system [M=Fe, Co, Ni and Zn]. The electrical resistivity results show that all the samples exhibit metallic behavior. The thermal conductivity results illustrate that for pristine sample of DyBa 2Cu3O7-δ, the expected pronounced hump in thermal conductivity is seen below the transition temperature. The hump is suppressed with 5% Pr-doping and this is further suppressed with co-doping. The thermoelectric power measurements show that the pristine sample exhibits hole-like behavior and this continues for doped as well co-doped samples. Pristine sample shows the expected jump in specific heat and with Pr-doping a slope change is observed near the transition temperature.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalSolid State Communications
Volume187
DOIs
Publication statusPublished - 01-06-2014

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Transport properties
Superconducting materials
Superconducting transition temperature
Thermal conductivity
transport properties
Thermoelectric power
Doping (additives)
Specific heat
thermal conductivity
transition temperature
specific heat
Communication
Hot Temperature
communication
slopes
heat
electrical resistivity

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Geetha, M. ; Rao, Ashok ; Thukaram, M. ; Agarwal, S. K. ; Bhatt, Ramesh Chandra ; Tyagi, Kriti ; Kuo, Y. K. / Electrical and thermal transport properties of Dy0.95Pr 0.05Ba2(Cu1-x Mx)3O 7-δ with (M=Fe, Co, Ni and Zn) bulk superconductors. In: Solid State Communications. 2014 ; Vol. 187. pp. 38-42.
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Electrical and thermal transport properties of Dy0.95Pr 0.05Ba2(Cu1-x Mx)3O 7-δ with (M=Fe, Co, Ni and Zn) bulk superconductors. / Geetha, M.; Rao, Ashok; Thukaram, M.; Agarwal, S. K.; Bhatt, Ramesh Chandra; Tyagi, Kriti; Kuo, Y. K.

In: Solid State Communications, Vol. 187, 01.06.2014, p. 38-42.

Research output: Contribution to journalArticle

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AU - Geetha, M.

AU - Rao, Ashok

AU - Thukaram, M.

AU - Agarwal, S. K.

AU - Bhatt, Ramesh Chandra

AU - Tyagi, Kriti

AU - Kuo, Y. K.

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N2 - In the present communication, measurements of transition temperature, thermal conductivity, thermoelectric power and specific heat have been carried out on pristine and co-doped samples of Dy0.95Pr 0.05Ba2(Cu0.98 M0.02) 3O7-δ system [M=Fe, Co, Ni and Zn]. The electrical resistivity results show that all the samples exhibit metallic behavior. The thermal conductivity results illustrate that for pristine sample of DyBa 2Cu3O7-δ, the expected pronounced hump in thermal conductivity is seen below the transition temperature. The hump is suppressed with 5% Pr-doping and this is further suppressed with co-doping. The thermoelectric power measurements show that the pristine sample exhibits hole-like behavior and this continues for doped as well co-doped samples. Pristine sample shows the expected jump in specific heat and with Pr-doping a slope change is observed near the transition temperature.

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