Closing the pseudogap by Zeeman splitting in Bi2Sr2CaCu2O8+y at high magnetic fields

被引：124

作者：

Shibauchi, T ^{[1
]}

Krusin-Elbaum, L

Li, M

Maley, MP

Kes, PH

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA

[2] Univ Calif Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA

[3] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.86.5763

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Interlayer tunneling resistivity is used to probe the low-energy density-of-states (DOS) depletion due to the pseudogap in the normal state of Bi(2)Sr(2)CaCU(2)Q(8+y) Measurements up to 60 T reveal that a field that restores DOS to its ungapped state shows strikingly different temperature and doping dependencies from the characteristic fields of the superconducting state. The pseudogap closing field and the pseudogap temperature T* evaluated independently are related through a simple Zeeman energy scaling. These. findings indicate a predominant role of spins over the orbital effects in the formation of the pseudogap.

引用

页码：5763 / 5766

页数：4

共 33 条

[1]

Anderson P. W., 1997, THEORY SUPERCONDUCTI

[2] Resistive upper critical fields and irreversibility lines of optimally doped high-Tc cuprates [J].

Ando, Y ;

Boebinger, GS ;

Passner, A ;

Schneemeyer, LF ;

Kimura, T ;

Okuya, M ;

Watauchi, S ;

Shimoyama, J ;

Kishio, K ;

Tamasaku, K ;

Ichikawa, N ;

Uchida, S .

PHYSICAL REVIEW B, 1999, 60 (17) :12475-12479

[3] VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BLATTER, G ;

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

LARKIN, AI ;

VINOKUR, VM .

REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388

[4] Low temperature thermometry in high magnetic fields.: VII.: Cernox™ sensors to 32 T [J].

Brandt, BL ;

Liu, DW ;

Rubin, LG .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (01) :104-110

[5] Hidden order in the cuprates [J].

Chakravarty, S ;

Laughlin, RB ;

Morr, DK ;

Nayak, C .

PHYSICAL REVIEW B, 2001, 63 (09)

[6] Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ [J].

Corson, J ;

Mallozzi, R ;

Orenstein, J ;

Eckstein, JN ;

Bozovic, I .

NATURE, 1999, 398 (6724) :221-223

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

EMERY, VJ ;

KIVELSON, SA .

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

[8] Spin-gap proximity effect mechanism of high-temperature superconductivity [J].

Emery, VJ ;

Kivelson, SA ;

Zachar, O .

PHYSICAL REVIEW B, 1997, 56 (10) :6120-6147

[9] 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

[10] Zone-diagonal-dominated transport in high-Tc cuprates [J].

Ioffe, LB ;

Millis, AJ .

PHYSICAL REVIEW B, 1998, 58 (17) :11631-11637

← 1 2 3 4 →