Physics – Condensed Matter – Superconductivity
Scientific paper
2004-01-05
Phys. Rev. Lett. 92, 197001(2004)
Physics
Condensed Matter
Superconductivity
4 pages, 5 figures, final version appeared in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.92.197001
Although the Hall coefficient R_H is an informative transport property of metals and semiconductors, its meaning in the cuprate superconductors has been ambiguous because of its unusual characteristics. Here we show that a systematic study of R_H in La_{2-x}Sr_{x}CuO_{4} single crystals over a wide doping range establishes a qualitative understanding of its peculiar evolution, which turns out to reflect a two-component nature of the electronic structure caused by an unusual development of the Fermi surface recently uncovered by photoemission experiments.
Ando Yoichi
Komiya Seiki
Kurita Yasunari
Ono Satoshi
Segawa Kouji
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