Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-04-24
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 5 figures
Scientific paper
We have measured temperature dependence of thermoelectric power (TEP) on MgB$_2$ superconductor under hydrostatic pressure. The sign and temperature dependence of TEP shows metallic hole carriers are dominant with activation type contribution at higher temperature. TEP increases with pressure while $T_c$ decrease with ratio -0.136 K/kbar. The data are discussed in consideration of carriers from different bands and anisotropy of compressibility.
Choi Eun Sang
Jung Chang Uk
Kang Woowon
Kim Heon-Jung
Kim Jin Young
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