Electronic Raman spectra of slightly underdoped YBa2Cu3O7-δ: Unusual behavior of antinodal electrons

被引：2

作者：

Tadatomo, H. ^{[1
]}

Masui, T. ^{[1
]}

Tajima, S. ^{[1
]}

机构：

[1] Osaka Univ, Dept Phys, Grad Sch Sci, Osaka 5600043, Japan

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 22期

关键词：

HIGH-T-C; SINGLE-CRYSTALS; HIGH-T(C) SUPERCONDUCTORS; TUNNELING SPECTROSCOPY; DOPING DEPENDENCE; PSEUDOGAP STATE; ENERGY GAPS; SCATTERING; BI2SR2CACU2O8+DELTA; CONDUCTIVITY;

D O I：

10.1103/PhysRevB.82.224503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report temperature dependences of B-1g electronic Raman spectra in slightly underdoped YBa2Cu3O7-delta samples. Above T-c, we found no signature associated with the pseudogap while below T-c we can acquire superconductivity-induced peaks which shift to higher energy with decreasing hole concentration (p) and disappear at p=0.11. These behaviors are similar to those reported for other cuprates. The unusual properties of the antinodal electrons are discussed in comparison with the angle-resolved photoemission spectra.

引用

页数：5

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