Hall coefficient in the ground state of stripe-ordered La2-xBaxCuO4 single crystals

被引：9
作者：
Adachi, Tadashi [1 ]
Kitajima, Nobyoshi [1 ]
Koike, Yoji [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
PHYSICAL REVIEW B | 2011年 / 83卷 / 06期
关键词：
QUANTUM OSCILLATIONS; FERMI POCKETS; SUPERCONDUCTORS; TRANSPORT; ANOMALIES; SURFACE;
D O I：
10.1103/PhysRevB.83.060506
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Temperature dependence of the Hall coefficient, R-H, has been investigated in charge-spin stripe-ordered La-214 high-T-c superconductors. Using the simplest stripe-ordered system of La2-xBaxCuO4, it has been clarified that both the behavior of R-H and its sign exhibit significant dependences on the hole concentration. That is, R-H is zero in the ground state of the charge-spin stripe order at x = 1/8, while it is negative in the less-stabilized state of the charge stripe for x < 1/8. These are interpreted as owing to the delicate balance of the contributions of the holelike Fermi surface and the possible electron pocket arising from the formation of the charge-spin stripe order.
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页数：4
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