Coherent quasiparticle weight and its connection to high-Tc superconductivity from angle-resolved photoemission -: art. no. 227001

被引:167
作者
Ding, H [1 ]
Engelbrecht, JR
Wang, Z
Campuzano, JC
Wang, SC
Yang, HB
Rogan, R
Takahashi, T
Kadowaki, K
Hinks, DG
机构
[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[3] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[4] Tohoku Univ, Dept Phys, Sendai, Miyagi 980, Japan
[5] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 305, Japan
关键词
D O I
10.1103/PhysRevLett.87.227001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study the doping and temperature dependence of the single-particle coherent weight, z(A), for high-T-c superconductors Bi2Sr2CaCu2O8+x using angle-resolved photoemission. We find that at low temperatures the coherent weight z(A) at (pi ,0) is proportional to the carrier concentration x and that the temperature dependence of z(A) is similar to that of the c-axis superfluid density. We show that, for a wide range of carrier concentration, the superconducting transition temperature scales with the product of the low-temperature coherent weight and the maximum superconducting gap.
引用
收藏
页码:227001 / 227001
页数:4
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