Thermoelectric power and transport properties of Mg1-xAlxB2

B. Lorenz, R. L. Meng, Y. Y. Xue, C. W. Chu

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)


We have measured the thermoelectric power S and resistivity ρ of Mg1-xAlxB2. S is positive and increases linearly with temperature above the superconducting transition temperature Tc. Deviations from the linear dependence appear at higher temperature, T> T0≈ 160 K. Tc and To both decrease with Al doping whereas the slope of S(T) in the linear range increases with the Al content. The data are discussed in terms of doping-induced changes of the Fermi surface and the density of states at the Fermi level.

Original languageEnglish
Article number052513
Pages (from-to)525131-525134
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number5
Publication statusPublished - 2001 Aug 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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