Evolution of the Hall Coefficient and the Peculiar Electronic Structure   of the Cuprate Superconductors
  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. 
Yoichi Ando, Y. Kurita, Seiki Komiya, S. Ono, Kouji Segawa (CRIEPI)