Momentum-Resolved Ultrafast Electron Dynamics in Superconducting Bi2Sr2CaCu2O8+δ

被引：106

作者：

Cortes, R. ^{[2
,3
]}

Rettig, L. ^{[1
,2
]}

Yoshida, Y. ^{[4
]}

Eisaki, H. ^{[4
]}

Wolf, M. ^{[2
,3
]}

Bovensiepen, U. ^{[1
]}

机构：

[1] Univ Duisburg Essen, Fak Phys, D-47048 Duisburg, Germany

[2] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

[3] Fritz Haber Inst MPG, Abt Phys Chem, D-14195 Berlin, Germany

[4] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 09期

关键词：

FEMTOSECOND; LIFETIMES;

D O I：

10.1103/PhysRevLett.107.097002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nonequilibrium state of the high-Tc superconductor Bi2Sr2CaCu2O8-delta and its ultrafast dynamics have been investigated by femtosecond time- and angle-resolved photoemission spectroscopy well below the critical temperature. We probe optically excited quasiparticles at different electron momenta along the Fermi surface and detect metastable quasiparticles near the antinode, since their decay toward the nodal region through e-e scattering is blocked by phase space restrictions. The observed lack of momentum dependence in the decay rates is in agreement with relaxation dynamics dominated by Cooper pair recombination in a boson bottleneck limit.

引用

页数：4

共 20 条

[1] Phonon dispersion and electron-phonon interaction for YBa2Cu3O7 from first-principles calculations [J].

Bohnen, KP ;

Heid, R ;

Krauss, M .

EUROPHYSICS LETTERS, 2003, 64 (01) :104-110

[2] Strength of the spin-fluctuation-mediated pairing interaction in a high-temperature superconductor [J].

Dahm, T. ;

Hinkov, V. ;

Borisenko, S. V. ;

Kordyuk, A. A. ;

Zabolotnyy, V. B. ;

Fink, J. ;

Buechner, B. ;

Scalapino, D. J. ;

Hanke, W. ;

Keimer, B. .

NATURE PHYSICS, 2009, 5 (03) :217-221

[3] Angle-resolved photoemission studies of the cuprate superconductors [J].

Damascelli, A ;

Hussain, Z ;

Shen, ZX .

REVIEWS OF MODERN PHYSICS, 2003, 75 (02) :473-541

[4] Superconducting gap Δc, the pseudogap Δp, and pair fluctuations above Tc in overdoped Y1-xCaxBa2Cu3O7-δ from femtosecond time-domain spectroscopy [J].

Demsar, J ;

Podobnik, B ;

Kabanov, VV ;

Wolf, T ;

Mihailovic, D .

PHYSICAL REVIEW LETTERS, 1999, 82 (24) :4918-4921

[5] Abrupt transition in quasiparticle dynamics at optimal doping in a cuprate superconductor system [J].

Gedik, N ;

Langner, M ;

Orenstein, J ;

Ono, S ;

Abe, Y ;

Ando, Y .

PHYSICAL REVIEW LETTERS, 2005, 95 (11)

[6] Single-quasiparticle stability and quasiparticle-pair decay in YBa2Cu3O6.5 -: art. no. 014504 [J].

Gedik, N ;

Blake, P ;

Spitzer, RC ;

Orenstein, J ;

Liang, RX ;

Bonn, DA ;

Hardy, WN .

PHYSICAL REVIEW B, 2004, 70 (01) :014504-1

[7] Discontinuity of the ultrafast electronic response of underdoped superconducting Bi2Sr2CaCu2O8+δ strongly excited by ultrashort light pulses [J].

Giannetti, Claudio ;

Coslovich, Giacomo ;

Cilento, Federico ;

Ferrini, Gabriele ;

Eisaki, Hiroshi ;

Kaneko, Nobuhisa ;

Greven, Martin ;

Parmigiani, Fulvio .

PHYSICAL REVIEW B, 2009, 79 (22)

[8]

Graf, 2011, NATURE PHYS, DOI [10.1038/nphys2027, DOI 10.1038/NPHYS2027]

[9] Relaxation of hot quasiparticles in a d-wave superconductor -: art. no. 037003 [J].

Howell, PC ;

Rosch, A ;

Hirschfeld, PJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4

[10] Kinetics of a superconductor excited with a femtosecond optical pulse [J].

Kabanov, VV ;

Demsar, J ;

Mihailovic, D .

PHYSICAL REVIEW LETTERS, 2005, 95 (14)

← 1 2 →