Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2

Ashok Rao, Bhasker Gahtori, S. K. Agarwal, Tirthankar Chakraborty, Chandan Kumar Sarkar, Anirban Das

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Polycrystalline samples of MgB2 superconductor (Mn-doped as well as pristine) were investigated by measurements of the electrical resistivity, magneto-resistance in the temperature range of 4-300 K. All the samples show metallic behaviour. It is observed that the upper critical field slightly decreases with Mn concentration. Specific heat measurements were performed with field as well as without field. For comparison, we also prepared one Fe-doped and specific heat measurements were also carried out on this sample. It is observed that the jump in specific heat decreases with increase in Mn content.

Original languageEnglish
Pages (from-to)64-69
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number1
DOIs
Publication statusPublished - 01-01-2009

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Specific heat
Thermal variables measurement
specific heat
heat measurement
Magnetoresistance
Temperature
Superconducting materials
heat
electrical resistivity
temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Rao, Ashok ; Gahtori, Bhasker ; Agarwal, S. K. ; Chakraborty, Tirthankar ; Sarkar, Chandan Kumar ; Das, Anirban. / Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 1. pp. 64-69.
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Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2. / Rao, Ashok; Gahtori, Bhasker; Agarwal, S. K.; Chakraborty, Tirthankar; Sarkar, Chandan Kumar; Das, Anirban.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 1, 01.01.2009, p. 64-69.

Research output: Contribution to journalArticle

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AB - Polycrystalline samples of MgB2 superconductor (Mn-doped as well as pristine) were investigated by measurements of the electrical resistivity, magneto-resistance in the temperature range of 4-300 K. All the samples show metallic behaviour. It is observed that the upper critical field slightly decreases with Mn concentration. Specific heat measurements were performed with field as well as without field. For comparison, we also prepared one Fe-doped and specific heat measurements were also carried out on this sample. It is observed that the jump in specific heat decreases with increase in Mn content.

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