On the possibility of fast vortices in the cuprates: A vortex plasma model analysis of THz conductivity and diamagnetism in La2-xSrxCu4

被引：20

作者：

Bilbro, L. S. ^{[1
]}

Aguilar, R. Valdes ^{[1
]}

Logvenov, G. ^{[2
]}

Bozovic, I. ^{[2
]}

Armitage, N. P. ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Inst Quantum Matter, Baltimore, MD 21218 USA

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 10期

关键词：

HIGH-T-C; TERAHERTZ SPECTROSCOPY; TUNNELING SPECTROSCOPY; RESISTIVE TRANSITION; TEMPERATURE; SUPERCONDUCTORS; LA2-XSRXCUO4; FILMS; BI2SR2CACU2O8+DELTA; YBA2CU3O7-DELTA;

D O I：

10.1103/PhysRevB.84.100511

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present measurements of the fluctuation superconductivity in an underdoped thin film of La1.905Sr0.095CuO4 using time-domain THz spectroscopy. We compare our results with measurements of diamagnetism in a similarly doped crystal of La2-xSrxCuO4. We show through a vortex-plasma model that if the fluctuation diamagnetism solely originates in vortices, then they must necessarily exhibit an anomalously large vortex diffusion constant, which is more than two orders of magnitude larger than the Bardeen-Stephen estimate. This points to either the extremely unusual properties of vortices in the underdoped d-wave cuprates or a contribution to the diamagnetic response that is not superconducting in origin.

引用

页数：4

共 34 条

[1] LOGARITHMIC DIVERGENCE OF BOTH INPLANE AND OUT-OF-PLANE NORMAL-STATE RESISTIVITIES OF SUPERCONDUCTING LA2-XSRXCUO4 IN THE ZERO-TEMPERATURE LIMIT
ANDO, Y
BOEBINGER, GS
PASSNER, A
KIMURA, T
KISHIO, K
[J]. PHYSICAL REVIEW LETTERS, 1995, 75 (25) : 4662 - 4665
[2] 2-DIMENSIONAL COLLECTIVE PINNING AND VORTEX-LATTICE MELTING IN A-NB1-XGEX FILMS
BERGHUIS, P
KES, PH
[J]. PHYSICAL REVIEW B, 1993, 47 (01) : 262 - 272
[3] Temporal correlations of superconductivity above the transition temperature in La2-xSrxCuO4 probed by terahertz spectroscopy
Bilbro, L. S.
Aguilar, R. Valdes
Logvenov, G.
Pelleg, O.
Bozovic, I.
Armitage, N. P.
[J]. NATURE PHYSICS, 2011, 7 (04) : 298 - 302
[4] Hidden order in the cuprates
Chakravarty, S
Laughlin, RB
Morr, DK
Nayak, C
[J]. PHYSICAL REVIEW B, 2001, 63 (09):
[5] Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ
Corson, J
Mallozzi, R
Orenstein, J
Eckstein, JN
Bozovic, I
[J]. NATURE, 1999, 398 (6724) : 221 - 223
[6] IMPORTANCE OF PHASE FLUCTUATIONS IN SUPERCONDUCTORS WITH SMALL SUPERFLUID DENSITY
EMERY, VJ
KIVELSON, SA
[J]. NATURE, 1995, 374 (6521) : 434 - 437
[7] FANFARILLO L, ARXIV11075963V1
[8] RESISTIVITY AND HALL EFFECT IN SUPERCONDUCTING NB
FIORY, AT
SERIN, B
[J]. PHYSICAL REVIEW LETTERS, 1968, 21 (06) : 359 - &
[9] Theory of the resistive transition in overdoped Tl2Ba2CuO6+δ:: Implications for the vortex viscosity and the quasiparticle scattering rate in high-Tc superconductors
Geshkenbein, VB
Ioffe, LB
Millis, AJ
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (26) : 5778 - 5781
[10] RADIO-FREQUENCY RESISTANCE IN MIXED STATE FOR SUBCRITICAL CURRENTS
GITTLEMAN, JI
ROSENBLUM, B
[J]. PHYSICAL REVIEW LETTERS, 1966, 16 (17) : 734 - +

← 1 2 3 4 →