Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)2(SrLa)2CuO6+δ from Muon Spin Rotation Experiments

R. Khasanov; Takeshi Kondo; S. Straessle; D. O. G. Heron; A. Kaminski; H. Keller; Stephen Leslie Lee; Tsunehiro Takeuchi

doi:10.1103/PhysRevLett.101.227002

Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)₂(SrLa)₂CuO_6+δ from Muon Spin Rotation Experiments

R. Khasanov, Takeshi Kondo, S. Straessle, D. O. G. Heron, A. Kaminski, H. Keller, Stephen Leslie Lee, Tsunehiro Takeuchi

Research output: Contribution to journal › Article › peer-review

Abstract

The in-plane magnetic penetration depth lambda(ab) in optimally doped (BiPb)(2)(SrLa)(2)CuO6+delta (OP Bi2201) was studied by means of muon-spin rotation. The measurements of lambda(-2)(ab)(T) are inconsistent with a simple model of a d-wave order parameter and a uniform quasiparticle weight around the Fermi surface. The data are well described assuming the angular gap symmetry obtained in ARPES experiments [Phys. Rev. Lett. 98, 267004 (2007)], which suggest that the superconducting gap in OP Bi2201 exists only in segments of the Fermi surface near the nodes. The remaining parts of the Fermi surface, which are strongly affected by the pseudogap state, do not contribute significantly to the superconducting condensate.

Original language	English
Article number	227002
Number of pages	4
Journal	Physical Review Letters
Volume	101
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.101.227002
Publication status	Published - 28 Nov 2008

Keywords

HIGH MAGNETIC-FIELDS
VORTEX STATE
UNDERDOPED BI2212
PENETRATION DEPTH
SINGLE-CRYSTAL
DEPENDENCE
BI2.15SR1.85CACU2O8+DELTA
CROSSOVER
LATTICE
GAP

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10.1103/PhysRevLett.101.227002

Cite this

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title = "Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)2(SrLa)2CuO6+δ from Muon Spin Rotation Experiments",

abstract = "The in-plane magnetic penetration depth lambda(ab) in optimally doped (BiPb)(2)(SrLa)(2)CuO6+delta (OP Bi2201) was studied by means of muon-spin rotation. The measurements of lambda(-2)(ab)(T) are inconsistent with a simple model of a d-wave order parameter and a uniform quasiparticle weight around the Fermi surface. The data are well described assuming the angular gap symmetry obtained in ARPES experiments [Phys. Rev. Lett. 98, 267004 (2007)], which suggest that the superconducting gap in OP Bi2201 exists only in segments of the Fermi surface near the nodes. The remaining parts of the Fermi surface, which are strongly affected by the pseudogap state, do not contribute significantly to the superconducting condensate.",

keywords = "HIGH MAGNETIC-FIELDS, VORTEX STATE, UNDERDOPED BI2212, PENETRATION DEPTH, SINGLE-CRYSTAL, DEPENDENCE, BI2.15SR1.85CACU2O8+DELTA, CROSSOVER, LATTICE, GAP",

author = "R. Khasanov and Takeshi Kondo and S. Straessle and Heron, {D. O. G.} and A. Kaminski and H. Keller and Lee, {Stephen Leslie} and Tsunehiro Takeuchi",

year = "2008",

month = nov,

day = "28",

doi = "10.1103/PhysRevLett.101.227002",

language = "English",

volume = "101",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)2(SrLa)2CuO6+δ from Muon Spin Rotation Experiments

AU - Khasanov, R.

AU - Kondo, Takeshi

AU - Straessle, S.

AU - Heron, D. O. G.

AU - Kaminski, A.

AU - Keller, H.

AU - Lee, Stephen Leslie

AU - Takeuchi, Tsunehiro

PY - 2008/11/28

Y1 - 2008/11/28

N2 - The in-plane magnetic penetration depth lambda(ab) in optimally doped (BiPb)(2)(SrLa)(2)CuO6+delta (OP Bi2201) was studied by means of muon-spin rotation. The measurements of lambda(-2)(ab)(T) are inconsistent with a simple model of a d-wave order parameter and a uniform quasiparticle weight around the Fermi surface. The data are well described assuming the angular gap symmetry obtained in ARPES experiments [Phys. Rev. Lett. 98, 267004 (2007)], which suggest that the superconducting gap in OP Bi2201 exists only in segments of the Fermi surface near the nodes. The remaining parts of the Fermi surface, which are strongly affected by the pseudogap state, do not contribute significantly to the superconducting condensate.

AB - The in-plane magnetic penetration depth lambda(ab) in optimally doped (BiPb)(2)(SrLa)(2)CuO6+delta (OP Bi2201) was studied by means of muon-spin rotation. The measurements of lambda(-2)(ab)(T) are inconsistent with a simple model of a d-wave order parameter and a uniform quasiparticle weight around the Fermi surface. The data are well described assuming the angular gap symmetry obtained in ARPES experiments [Phys. Rev. Lett. 98, 267004 (2007)], which suggest that the superconducting gap in OP Bi2201 exists only in segments of the Fermi surface near the nodes. The remaining parts of the Fermi surface, which are strongly affected by the pseudogap state, do not contribute significantly to the superconducting condensate.

KW - HIGH MAGNETIC-FIELDS

KW - VORTEX STATE

KW - UNDERDOPED BI2212

KW - PENETRATION DEPTH

KW - SINGLE-CRYSTAL

KW - DEPENDENCE

KW - BI2.15SR1.85CACU2O8+DELTA

KW - CROSSOVER

KW - LATTICE

KW - GAP

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U2 - 10.1103/PhysRevLett.101.227002

DO - 10.1103/PhysRevLett.101.227002

M3 - Article

SN - 0031-9007

VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 227002

ER -

Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)₂(SrLa)₂CuO_6+δ from Muon Spin Rotation Experiments

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Field Induced Quantum Order EP/E064264/1: Copt in Field Induced Quantum Ordering

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Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)2(SrLa)2CuO6+δ from Muon Spin Rotation Experiments

Abstract

Keywords

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Field Induced Quantum Order EP/E064264/1: Copt in Field Induced Quantum Ordering

Cite this

Evidence for a Competition between the Superconducting State and the Pseudogap State of (BiPb)₂(SrLa)₂CuO_6+δ from Muon Spin Rotation Experiments