Quasiparticle spectra, charge-density waves, superconductivity, and electron-phonon coupling in 2H-NbSe2 -: art. no. 086401

被引：179

作者：

Valla, T ^{[1
]}

Fedorov, AV

Johnson, PD

Glans, PA

McGuinness, C

Smith, KE

Andrei, EY

Berger, H

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Rutgers State Univ, Dept Phys, Piscataway, NJ 08854 USA

[4] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland

[5] LBNL, Adv Light Source, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.92.086401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-resolution photoemission has been used to study the electronic structure of the charge-density wave (CDW) and superconducting dichalcogenide, 2H-NbSe2. From the extracted self-energies, important components of the quasiparticle interactions have been identified. In contrast to previously studied TaSe2, the CDW transition does not affect the electronic properties significantly. The electron-phonon coupling is identified as a dominant contribution to the quasiparticle self-energy and is shown to be very anisotropic (k dependent) and much stronger than in TaSe2.

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页数：4

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共 41 条

[11] EXPERIMENTAL INVESTIGATION OF SUPERCONDUCTIVITY IN 2H-NBSE-2 SINGLE-CRYSTAL [J].

GAROCHE, P ;

VEYSSIE, JJ ;

MANUEL, P ;

MOLINIE, P .

SOLID STATE COMMUNICATIONS, 1976, 19 (05) :455-460

[12] FERMI-SURFACE MEASUREMENTS IN NORMAL AND SUPERCONDUCTING 2H-NBSE2 [J].

GRAEBNER, JE ;

ROBBINS, M .

PHYSICAL REVIEW LETTERS, 1976, 36 (08) :422-425

[13] THERMAL-PROPERTIES OF LAYERED TRANSITION-METAL DICHALCOGENIDES AT CHARGE-DENSITY-WAVE TRANSITIONS [J].

HARPER, JME ;

GEBALLE, TH ;

DISALVO, FJ .

PHYSICAL REVIEW B, 1977, 15 (06) :2943-2951

[14] Photoemission study of a strongly coupled electron-phonon system [J].

Hengsberger, M ;

Purdie, D ;

Segovia, P ;

Garnier, M ;

Baer, Y .

PHYSICAL REVIEW LETTERS, 1999, 83 (03) :592-595

[15] SPECTROSCOPIC AND SPATIAL CHARACTERIZATION OF SUPERCONDUCTING VORTEX CORE STATES WITH A SCANNING TUNNELING MICROSCOPE [J].

HESS, HF ;

ROBINSON, RB ;

DYNES, RC ;

VALLES, JM ;

WASZCZAK, JV .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (01) :450-454

[16] Doping and temperature dependence of the mass enhancement observed in the cuprate Bi2Sr2CaCu2O8+δ -: art. no. 177007 [J].

Johnson, PD ;

Valla, T ;

Fedorov, AV ;

Yusof, Z ;

Wells, BO ;

Li, Q ;

Moodenbaugh, AR ;

Gu, GD ;

Koshizuka, N ;

Kendziora, C ;

Jian, S ;

Hinks, DG .

PHYSICAL REVIEW LETTERS, 2001, 87 (17) :177007-1

[17] Fermi surface and superconducting gap of 2H-NbSe2 using low-temperature ultrahigh-resolution angle-resolved photoemission spectroscopy [J].

Kiss, T ;

Yokoya, T ;

Chainani, A ;

Shin, S ;

Nohara, M ;

Takagi, H .

PHYSICA B-CONDENSED MATTER, 2002, 312 :666-667

[18] Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors [J].

Lanzara, A ;

Bogdanov, PV ;

Zhou, XJ ;

Kellar, SA ;

Feng, DL ;

Lu, ED ;

Yoshida, T ;

Eisaki, H ;

Fujimori, A ;

Kishio, K ;

Shimoyama, JI ;

Noda, T ;

Uchida, S ;

Hussain, Z ;

Shen, ZX .

NATURE, 2001, 412 (6846) :510-514

[19] Fermi surface of 2H-TaSe2 and its relation to the charge-density wave [J].

Liu, R ;

Tonjes, WC ;

Greanya, VA ;

Olson, CG ;

Frindt, RF .

PHYSICAL REVIEW B, 2000, 61 (08) :5212-5216

[20] PRESSURE-ENHANCED SUPERCONDUCTIVITY AND SUPERLATTICE STRUCTURES IN TRANSITION-METAL DICHALCOGENIDE LAYER CRYSTALS [J].

MOLINIE, P ;

JEROME, D ;

GRANT, AJ .

PHILOSOPHICAL MAGAZINE, 1974, 30 (05) :1091-1103

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