1 Ocak 2016 Dergi makalesi Açık Erişim

Anghel, Dragos-Victor; Nemnes, George Alexandru

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  <dc:creator>Anghel, Dragos-Victor</dc:creator>
  <dc:creator>Nemnes, George Alexandru</dc:creator>
  <dc:date>2016-01-01</dc:date>
  <dc:description>We study the effect of the chemical potential on the results of the BCS theory of superconductivity. We assume that the pairing interaction is manifested between electrons of single-particle energies in an interval [mu - h omega(c), mu + h omega(c)], where mu and omega(c) are parameters of the model-mu, need not be equal to the chemical potential of the system, denoted here by mu(R). The BCS results are recovered if mu = mu(R). If mu not equal mu(R) the physical properties change significantly: the energy gap Delta is smaller than the BCS gap, a population imbalance appears, and the superconductor-normal metal phase transition is of the first order. The quasiparticle imbalance is an equilibrium property that appears due to the asymmetry with respect to mu(R) of the single-particle energy interval in which the pairing potential is manifested.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/60613</dc:identifier>
  <dc:identifier>oai:zenodo.org:60613</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 464 74-82</dc:source>
  <dc:title>The role of the chemical potential in the BCS theory</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>