TY - JOUR
T1 - Thermoelectric power and resistivity of HgBa2CuO4+δ over a wide doping range
AU - Yamamoto, Ayako
AU - Hu, Wei Zhi
AU - Tajima, Setsuko
PY - 2001/12/14
Y1 - 2001/12/14
N2 - Thermoelectric power (TEP) and resistivity were systematically investigated for HgBa2CuO4+δ (Hg-1201) with various doping levels from high underdoping to slight overdoping. Polycrystalline Hg-1201 samples were carefully prepared from a mixture of HgO, BaO, and CuO. We paid particular attention to carbon impurity in the starting materials, resulting in a high-quality sample. This enabled us to measure reliable transport properties. Assuming one characteristic temperature T* for each doping level, both the TEP and the resistivity can be well scaled, as was reported in the other high- Tc superconductors. The doping dependence of T’s is in good agreement with that of spin gap temperatures determined by NMR as well as that of the pseudogap temperatures reported in some other high- Tc superconductors.
AB - Thermoelectric power (TEP) and resistivity were systematically investigated for HgBa2CuO4+δ (Hg-1201) with various doping levels from high underdoping to slight overdoping. Polycrystalline Hg-1201 samples were carefully prepared from a mixture of HgO, BaO, and CuO. We paid particular attention to carbon impurity in the starting materials, resulting in a high-quality sample. This enabled us to measure reliable transport properties. Assuming one characteristic temperature T* for each doping level, both the TEP and the resistivity can be well scaled, as was reported in the other high- Tc superconductors. The doping dependence of T’s is in good agreement with that of spin gap temperatures determined by NMR as well as that of the pseudogap temperatures reported in some other high- Tc superconductors.
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U2 - 10.1103/PhysRevB.63.024504
DO - 10.1103/PhysRevB.63.024504
M3 - Article
AN - SCOPUS:0035133146
VL - 63
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 2
ER -