Optical studies of charge dynamics in optimally doped Bi2Sr2CaCu2O8+δ -: art. no. 144514

被引:57
作者
Tu, JJ [1 ]
Homes, CC
Gu, GD
Basov, DN
Strongin, M
机构
[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
关键词
D O I
10.1103/PhysRevB.66.144514
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Systematic temperature-dependent optical studies of optimally doped Bi2Sr2CaCu2O8+delta (OP Bi2212) single crystals have been carried out. An electron-boson spectral function peaked at 43 meV is derived in the normal state at 100 K, indicating that the most significant spectral feature in OP Bi2212 is a resonance at 43 meV. The optical data below T-c show that this boson is directly involved in the pair formation in OP Bi2212. Origins of the 43 meV mode are discussed.
引用
收藏
页码:1 / 4
页数:4
相关论文
共 28 条
[1]  
ABANOV A, 2001, PHYS REV B, V63
[2]   ELECTRON-PHONON EFFECTS IN INFRARED PROPERTIES OF METALS [J].
ALLEN, PB .
PHYSICAL REVIEW B, 1971, 3 (02) :305-&
[3]   Pseudogap and charge dynamics in CuO2 planes in YBCO [J].
Basov, DN ;
Liang, R ;
Dabrowski, B ;
Bonn, DA ;
Hardy, WN ;
Timusk, T .
PHYSICAL REVIEW LETTERS, 1996, 77 (19) :4090-4093
[4]  
Bourges P, 1999, AIP CONF PROC, V483, P207
[5]   Coupling strength of charge carriers to spin fluctuations in high-temperature superconductors [J].
Carbotte, JP ;
Schachinger, E ;
Basov, DN .
NATURE, 1999, 401 (6751) :354-356
[6]  
CARBOTTE JP, 2000, PHYS CAN, V56, P257
[7]   GAP ANISOTROPY AND PHONON SELF-ENERGY EFFECTS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].
COOPER, SL ;
SLAKEY, F ;
KLEIN, MV ;
RICE, JP ;
BUKOWSKI, ED ;
GINSBERG, DM .
PHYSICAL REVIEW B, 1988, 38 (16) :11934-11937
[8]   PHONON DENSITY OF STATES OF SUPERCONDUCTING LEAD [J].
FARNWORTH, B ;
TIMUSK, T .
PHYSICAL REVIEW B, 1976, 14 (11) :5119-5120
[9]   Neutron scattering from magnetic excitations in Bi2Sr2CaCu2O8+δ [J].
Fong, HF ;
Bourges, P ;
Sidis, Y ;
Regnault, LP ;
Ivanov, A ;
Gu, GD ;
Koshizuka, N ;
Keimer, B .
NATURE, 1999, 398 (6728) :588-591
[10]   TECHNIQUE FOR MEASURING THE REFLECTANCE OF IRREGULAR, SUBMILLIMETER-SIZED SAMPLES [J].
HOMES, CC ;
REEDYK, M ;
CRADLES, DA ;
TIMUSK, T .
APPLIED OPTICS, 1993, 32 (16) :2976-2983