Transport Anomalies and the Role of Pseudogap in the "60-K Phase" of YBa_{2}Cu_{3}O_{7-δ}
Authors:
- Kouji SegawaKSKouji Segawa
- Yoichi AndoYAYoichi Ando
Preprint
Abstract
We report the result of our accurate measurements of the a- and b-axis resistivity, Hall coefficient, and the a-axis thermopower in untwinned YBa_{2}Cu_{3}O_{y} single crystals in a wide range of doping. It is found that both the a-axis resistivity and the Hall conductivity show anomalous dependences on the oxygen content y in the "60-K phase" below the pseudogap temperature T^*. The complete data set enables us to narrow down the possible pictures of the 60-K phase, with which we discuss a peculiar role of the pseudogap in the charge transport.Keywords
All Related Versions
- Version 1, 2001-04-10, ArXiv
- Published version: Physical Review Letters, 86 (21), 4907.