Absence of quasiparticles in the photoemission spectra of quasi-one-dimensional Bechgaard salts

被引：102

作者：

Zwick, F

Brown, S

Margaritondo, G

Merlic, C

Onellion, M

Voit, J

Grioni, M

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90095

[2] UNIV CALIF LOS ANGELES,DEPT CHEM,LOS ANGELES,CA 90095

[3] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

[4] UNIV BAYREUTH,D-95440 BAYREUTH,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.79.3982

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measured typical quasi-one-dimensional organic metals (Bechgaard salts), using high resolution angle-resolved photoemission spectroscopy. We observe neither quasiparticle features near the chemical potential nor traces of a Fermi surface. The spectra, indicating a deep pseudogap around the Fermi energy, are incompatible with a Fermi liquid picture. None of the alternative interpretations we explored can fully explain the experimental data.

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页码：3982 / 3985

页数：4

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