New magnetic coherence effect in superconducting La2-xSrxCuO4

被引：97

作者：

Mason, TE

Schroder, A

Aeppli, G

Mook, HA

Hayden, SM

机构：

[1] RISO NATL LAB,DEPT SOLID STATE PHYS,DK-4000 ROSKILDE,DENMARK

[2] NEC RES INST,PRINCETON,NJ 08540

[3] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831

[4] UNIV BRISTOL,HH WILLS PHYS LAB,BRISTOL BS8 1TL,AVON,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.77.1604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have used inelastic neutron scattering to examine the magnetic fluctuations at intermediate frequencies in the simplest high temperature superconductor, La2-xSrxCuO4. The suppression of the low energy magnetic response in the superconducting state is accompanied by an increase in the response at higher energies. Just above a threshold energy of similar to 7 meV there is additional scattering present below T-c which is characterized by an extraordinarily long coherence length, in excess of 50 Angstrom.

引用

页码：1604 / 1607

页数：4

共 33 条

[1]

AEPPLI G, 1994, IN PRESS

[2] THEORY OF SUPERCONDUCTIVITY [J].

BARDEEN, J ;

COOPER, LN ;

SCHRIEFFER, JR .

PHYSICAL REVIEW, 1957, 108 (05) :1175-1204

[3] MAGNETIC NEUTRON-SCATTERING FROM 2-DIMENSIONAL LATTICE ELECTRONS - THE CASE OF LA2-XSRXCUO4 [J].

BENARD, P ;

CHEN, L ;

TREMBLAY, AMS .

PHYSICAL REVIEW B, 1993, 47 (22) :15217-15241

[4] WEAK-COUPLING ANALYSIS OF THE NEUTRON-SCATTERING SPECTRAL WEIGHT [J].

BULUT, N ;

SCALAPINO, DJ .

PHYSICAL REVIEW B, 1993, 47 (06) :3419-3422

[5]

BULUT N, 1995, IN PRESS

[6] INCOMMENSURATE MAGNETIC FLUCTUATIONS IN LA2-XSRXCUO4 [J].

CHEONG, SW ;

AEPPLI, G ;

MASON, TE ;

MOOK, H ;

HAYDEN, SM ;

CANFIELD, PC ;

FISK, Z ;

CLAUSEN, KN ;

MARTINEZ, JL .

PHYSICAL REVIEW LETTERS, 1991, 67 (13) :1791-1794

[7] THEORY OF THE RESONANT NEUTRON-SCATTERING OF HIGH-T-C SUPERCONDUCTORS [J].

DEMLER, E ;

ZHANG, SC .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :4126-4129

[8] FRUSTRATED ELECTRONIC PHASE-SEPARATION AND HIGH-TEMPERATURE SUPERCONDUCTORS [J].

EMERY, VJ ;

KIVELSON, SA .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1993, 209 (04) :597-621

[9] PHONON AND MAGNETIC NEUTRON-SCATTERING AT 41 MEV IN YBA2CU3O7 [J].

FONG, HF ;

KEIMER, B ;

ANDERSON, PW ;

REZNIK, D ;

DOGAN, F ;

AKSAY, IA .

PHYSICAL REVIEW LETTERS, 1995, 75 (02) :316-319

[10]

GINSBERG DM, 1989, PHYSICAL PROPERTIES, V1

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