Quantum phase transitions in the cuprate superconductor Bi2Sr2-xLaxCuO6+δ -: art. no. 247004

被引：44

作者：

Ando, Y ^{[1
]}

Ono, S

Sun, XF

Takeya, J

Balakirev, FF

Betts, JB

Boebinger, GS

机构：

[1] Cent Res Inst Elect Power Ind, Tokyo 2018511, Japan

[2] Los Alamos Natl Lab, NHMFL, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.247004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

To elucidate a quantum phase transition (QPT) in Bi2Sr2-xLaxCuO6+delta, we measure charge and heat transport properties at very low temperatures and examine the following characteristics for a wide range of doping: normal-state resistivity anisotropy under 58 T, temperature dependence of the in-plane thermal conductivity kappa(ab), and the magnetic-field dependence of kappa(ab). It turns out that all of them show signatures of a QPT at the 1/8 hole doping. Together with the recent normal-state Hall measurements under 58 T that signified the existence of a QPT at optimum doping, the present results indicate that there are two QPTs in the superconducting doping regime of this material.

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页码：247004 / 1

页数：4

相关论文

共 36 条

[1] Nearly singular magnetic fluctuations in the normal state of a high-T-c cuprate superconductor [J].

Aeppli, G ;

Mason, TE ;

Hayden, SM ;

Mook, HA ;

Kulda, J .

SCIENCE, 1997, 278 (5342) :1432-1435

[2] EXPERIMENTAL CONSTRAINTS ON THE THEORY OF HIGH-TC SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1992, 256 (5063) :1526-1531

[3] Carrier concentrations in Bi2Sr2-zLazCuO6+δ single crystals and their relation to the Hall coefficient and thermopower [J].

Ando, Y ;

Hanaki, Y ;

Ono, S ;

Murayama, T ;

Segawa, K ;

Miyamoto, N ;

Komiya, S .

PHYSICAL REVIEW B, 2000, 61 (22) :14956-14959

[4] Nonuniversal power law of the Hall scattering rate in a single-layer cuprate Bi2Sr2-xLaxCuO6 [J].

Ando, Y ;

Murayama, T .

PHYSICAL REVIEW B, 1999, 60 (10) :R6991-R6994

[5] Carrier concentrations in Bi2Sr2-zLazCuO6+δ single crystals and their relation to the Hall coefficient and thermopower (vol B 61, pg R14956, 2000) -: art. no. 069902 [J].

Ando, Y ;

Hanaki, Y ;

Ono, S ;

Murayama, T ;

Segawa, K ;

Miyamoto, N ;

Komiya, S .

PHYSICAL REVIEW B, 2001, 63 (06)

[6] Novel anisotropy in the superconducting gap structure of Bi2Sr2CaCu2O8+δ probed by quasiparticle heat transport -: art. no. 147004 [J].

Ando, Y ;

Takeya, J ;

Abe, Y ;

Sun, XF ;

Lavrov, AN .

PHYSICAL REVIEW LETTERS, 2002, 88 (14) :4

[7] Optical and thermal-transport properties of an inhomogeneous d-wave superconductor -: art. no. 187003 [J].

Atkinson, WA ;

Hirschfeld, PJ .

PHYSICAL REVIEW LETTERS, 2002, 88 (18) :1870031-1870034

[8] Signature of optimal doping in Hall-effect measurements on a high-temperature superconductor [J].

Balakirev, FF ;

Betts, JB ;

Migliori, A ;

Ono, S ;

Ando, Y ;

Boebinger, GS .

NATURE, 2003, 424 (6951) :912-915

[9] Colossal effects in transition metal oxides caused by intrinsic inhomogeneities [J].

Burgy, J ;

Mayr, M ;

Martin-Mayor, V ;

Moreo, A ;

Dagotto, E .

PHYSICAL REVIEW LETTERS, 2001, 87 (27) :277202-277202

[10] Sharp signature of a dx2-y2 quantum critical point in the Hall coefficient of cuprate superconductors -: art. no. 277003 [J].

Chakravarty, S ;

Nayak, C ;

Tewari, S ;

Yang, X .

PHYSICAL REVIEW LETTERS, 2002, 89 (27)

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