Quasiparticles and photoemission spectra in correlated fermion systems

P. Horsch; W. H. Stephan; K. v. Szczepanski; M. Ziegler; W. von der Linden

doi:10.1016/0921-4534(89)91258-6

Quasiparticles and photoemission spectra in correlated fermion systems

P. Horsch, W. H. Stephan, K. v. Szczepanski, M. Ziegler, W. von der Linden

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

We present some selected numerical results for the spectral function of two models currently discussed for HTSC. For the t-J model we find a quasiparticle band with dispersion ϵk→ ≈ J2(cos kx + cos ky)2 well separated from a broad continuum of states (7t). For the Emery model photoemission and inverse photoemission spectra for the insulating (undoped) and for doped cases are discussed. In the doped case new states with strong O-character appear in the charge transfer gap, which appear to be responsible for conductivity in hole-doped HTSC.

Originalsprache	englisch
Seiten (von - bis)	783-784
Seitenumfang	2
Fachzeitschrift	Physica C: Superconductivity and its Applications
Jahrgang	162–164, Part 1
DOIs	https://doi.org/10.1016/0921-4534(89)91258-6
Publikationsstatus	Veröffentlicht - 1 Dez. 1989

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10.1016/0921-4534(89)91258-6

https://www.sciencedirect.com/science/article/pii/0921453489912586

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title = "Quasiparticles and photoemission spectra in correlated fermion systems",

abstract = "We present some selected numerical results for the spectral function of two models currently discussed for HTSC. For the t-J model we find a quasiparticle band with dispersion ϵk→ ≈ J2(cos kx + cos ky)2 well separated from a broad continuum of states (7t). For the Emery model photoemission and inverse photoemission spectra for the insulating (undoped) and for doped cases are discussed. In the doped case new states with strong O-character appear in the charge transfer gap, which appear to be responsible for conductivity in hole-doped HTSC.",

author = "P. Horsch and Stephan, {W. H.} and Szczepanski, {K. v.} and M. Ziegler and {von der Linden}, W.",

year = "1989",

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doi = "10.1016/0921-4534(89)91258-6",

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T1 - Quasiparticles and photoemission spectra in correlated fermion systems

AU - Horsch, P.

AU - Stephan, W. H.

AU - Szczepanski, K. v.

AU - Ziegler, M.

AU - von der Linden, W.

PY - 1989/12/1

Y1 - 1989/12/1

N2 - We present some selected numerical results for the spectral function of two models currently discussed for HTSC. For the t-J model we find a quasiparticle band with dispersion ϵk→ ≈ J2(cos kx + cos ky)2 well separated from a broad continuum of states (7t). For the Emery model photoemission and inverse photoemission spectra for the insulating (undoped) and for doped cases are discussed. In the doped case new states with strong O-character appear in the charge transfer gap, which appear to be responsible for conductivity in hole-doped HTSC.

AB - We present some selected numerical results for the spectral function of two models currently discussed for HTSC. For the t-J model we find a quasiparticle band with dispersion ϵk→ ≈ J2(cos kx + cos ky)2 well separated from a broad continuum of states (7t). For the Emery model photoemission and inverse photoemission spectra for the insulating (undoped) and for doped cases are discussed. In the doped case new states with strong O-character appear in the charge transfer gap, which appear to be responsible for conductivity in hole-doped HTSC.

U2 - 10.1016/0921-4534(89)91258-6

DO - 10.1016/0921-4534(89)91258-6

M3 - Article

SN - 0921-4534

VL - 162–164, Part 1

SP - 783

EP - 784

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

ER -

Quasiparticles and photoemission spectra in correlated fermion systems

Abstract

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