Magnetic field effect on the pseudogap temperature within precursor superconductivity

被引：43

作者：

Pieri, P ^{[1
]}

Strinati, GC ^{[1
]}

Moroni, D ^{[1
]}

机构：

[1] Univ Camerino, Dipartimento Matemat & Fis, Sez INFM, I-62032 Camerino, Italy

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.89.127003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the magnetic-field dependence of the pseudogap closing temperature T* within a precursor superconductivity scenario. Detailed calculations with an anisotropic lattice model with d-wave superconductivity account for a recently determined experimental relation in BSCCO between the pseudogap closing field and the pseudogap temperature at zero field, as well as for the weak initial dependence of T* at low fields. Our results indicate that the available experimental data are fully compatible with a superconducting origin of the pseudogap in cuprate superconductors.

引用

页数：4

共 21 条

[1] CROSSOVER FROM BCS TO BOSE SUPERCONDUCTIVITY - TRANSITION-TEMPERATURE AND TIME-DEPENDENT GINZBURG-LANDAU THEORY [J].

DEMELO, CARS ;

RANDERIA, M ;

ENGELBRECHT, JR .

PHYSICAL REVIEW LETTERS, 1993, 71 (19) :3202-3205

[2] IMPORTANCE OF PHASE FLUCTUATIONS IN SUPERCONDUCTORS WITH SMALL SUPERFLUID DENSITY [J].

EMERY, VJ ;

KIVELSON, SA .

NATURE, 1995, 374 (6521) :434-437

[3]

GORKOV LP, 1959, ZH EKSP TEOR FIZ, V9, P1364

[4] Magnetic field independence of the spin gap in YBa2Cu3O7-δ [J].

Gorny, K ;

Vyaselev, OM ;

Martindale, JA ;

Nandor, VA ;

Pennington, CH ;

Hammel, PC ;

Hults, WL ;

Smith, JL ;

Kuhns, PL ;

Reyes, AP ;

Moulton, WG .

PHYSICAL REVIEW LETTERS, 1999, 82 (01) :177-180

[5] SINGLE BAND MOTION OF CONDUCTION ELECTRONS IN A UNIFORM MAGNETIC FIELD [J].

HARPER, PG .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1955, 68 (10) :874-878

[6] ENERGY-LEVELS AND WAVE-FUNCTIONS OF BLOCH ELECTRONS IN RATIONAL AND IRRATIONAL MAGNETIC-FIELDS [J].

HOFSTADTER, DR .

PHYSICAL REVIEW B, 1976, 14 (06) :2239-2249

[7]

KAO YJ, CONDMAT0107614

[8]

KAO YJ, 2000, PHYS REV B, V64

[9] Evidence for coexistence of the superconducting gap and the pseudogap in Bi-2212 from intrinsic tunneling spectroscopy [J].

Krasnov, VM ;

Yurgens, A ;

Winkler, D ;

Delsing, P ;

Claeson, T .

PHYSICAL REVIEW LETTERS, 2000, 84 (25) :5860-5863

[10] Magnetic field dependence of the superconducting gap and the pseudogap in Bi2212 and HgBr2-Bi2212, studied by intrinsic tunneling spectroscopy [J].

Krasnov, VM ;

Kovalev, AE ;

Yurgens, A ;

Winkler, D .

PHYSICAL REVIEW LETTERS, 2001, 86 (12) :2657-2660

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