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Superconductivity in W5SiB2 with the T2-phase structure studied by the specific heat measurement and band structure calculation

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Title: Superconductivity in W5SiB2 with the T2-phase structure studied by the specific heat measurement and band structure calculation
Authors: Fukuma, M. fukuma.0816@phys.aoyama.ac.jp, Kawashima, K.1, Maruyama, M.1, Akimitsu, J.1
Source: Physica C. Nov2011, Vol. 471 Issue 21/22, p714-716. 3p.
Subjects: Superconductivity, Borides, Phase equilibrium, Specific heat, Energy bands, Temperature effect, Energy levels (Quantum mechanics), Electronic structure
Abstract: Abstract: The superconducting state of W5SiB2 with the T2-phase structure has been investigated by a specific heat measurement and a density of state calculation. The estimated ΔC p/γT c and 2Δ(0)/k B T c values are 1.49 and 3.32, which are close to 1.43 and 3.53 within the weak coupling regime. The electronic specific heat data clearly indicates the absence of gap nodes in the superconducting order parameter, suggesting an isotropic s-wave superconductor. From the density of state calculations, we found that W d-orbital plays an important role for the superconductivity in W5SiB2. [Copyright &y& Elsevier]
Copyright of Physica C is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 66769186
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Superconductivity in W<subscript>5</subscript>SiB<subscript>2</subscript> with the T<subscript>2</subscript>-phase structure studied by the specific heat measurement and band structure calculation
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  Data: <searchLink fieldCode="AR" term="%22Fukuma%2C+M%2E%22">Fukuma, M.</searchLink><i> fukuma.0816@phys.aoyama.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Kawashima%2C+K%2E%22">Kawashima, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Maruyama%2C+M%2E%22">Maruyama, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Akimitsu%2C+J%2E%22">Akimitsu, J.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Physica+C%22">Physica C</searchLink>. Nov2011, Vol. 471 Issue 21/22, p714-716. 3p.
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  Data: <searchLink fieldCode="DE" term="%22Superconductivity%22">Superconductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Borides%22">Borides</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+equilibrium%22">Phase equilibrium</searchLink><br /><searchLink fieldCode="DE" term="%22Specific+heat%22">Specific heat</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+bands%22">Energy bands</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+levels+%28Quantum+mechanics%29%22">Energy levels (Quantum mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+structure%22">Electronic structure</searchLink>
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  Data: Abstract: The superconducting state of W5SiB2 with the T2-phase structure has been investigated by a specific heat measurement and a density of state calculation. The estimated ΔC p/γT c and 2Δ(0)/k B T c values are 1.49 and 3.32, which are close to 1.43 and 3.53 within the weak coupling regime. The electronic specific heat data clearly indicates the absence of gap nodes in the superconducting order parameter, suggesting an isotropic s-wave superconductor. From the density of state calculations, we found that W d-orbital plays an important role for the superconductivity in W5SiB2. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Physica C is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.physc.2011.05.035
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 3
        StartPage: 714
    Subjects:
      – SubjectFull: Superconductivity
        Type: general
      – SubjectFull: Borides
        Type: general
      – SubjectFull: Phase equilibrium
        Type: general
      – SubjectFull: Specific heat
        Type: general
      – SubjectFull: Energy bands
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Energy levels (Quantum mechanics)
        Type: general
      – SubjectFull: Electronic structure
        Type: general
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      – TitleFull: Superconductivity in W5SiB2 with the T2-phase structure studied by the specific heat measurement and band structure calculation
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            NameFull: Kawashima, K.
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              Text: Nov2011
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              Value: 471
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