K/graphite: Uniform energy shifts of graphite valence states

T Kihlgren; Balasubramanian Thiagarajan; L Wallden; R Yakimova

doi:10.1016/j.susc.2006.01.011

K/graphite: Uniform energy shifts of graphite valence states

T Kihlgren, Balasubramanian Thiagarajan, L Wallden, R Yakimova

MAX IV Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

Ultra-thin graphite overlayers prepared by heating SiC crystals can give highly resolved valence band photoemission spectra. This is exploited to monitor K deposition induced energy shifts of graphite valence band states. States near the corners of the Brillouin zone, responsible for the semimetal character of graphite, are observed to show shifts that are nearly equal to the shifts of the uppermost filled sigma state and of an empty state 7.6 eV above EF. The results give credence to the rigid band shift model often used to discuss the electronic structure and charge transfer for graphite ad- and absorption systems. (c) 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1160-1164
Journal	Surface Science
Volume	600
Issue number	5
DOIs	https://doi.org/10.1016/j.susc.2006.01.011
Publication status	Published - 2006

Subject classification (UKÄ)

Physical Sciences
Natural Sciences

Free keywords

angle resolved photoemission
alkali metals
graphite

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10.1016/j.susc.2006.01.011

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title = "K/graphite: Uniform energy shifts of graphite valence states",

abstract = "Ultra-thin graphite overlayers prepared by heating SiC crystals can give highly resolved valence band photoemission spectra. This is exploited to monitor K deposition induced energy shifts of graphite valence band states. States near the corners of the Brillouin zone, responsible for the semimetal character of graphite, are observed to show shifts that are nearly equal to the shifts of the uppermost filled sigma state and of an empty state 7.6 eV above EF. The results give credence to the rigid band shift model often used to discuss the electronic structure and charge transfer for graphite ad- and absorption systems. (c) 2006 Elsevier B.V. All rights reserved.",

keywords = "angle resolved photoemission, alkali metals, graphite",

author = "T Kihlgren and Balasubramanian Thiagarajan and L Wallden and R Yakimova",

year = "2006",

doi = "10.1016/j.susc.2006.01.011",

language = "English",

volume = "600",

pages = "1160--1164",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

number = "5",

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TY - JOUR

T1 - K/graphite: Uniform energy shifts of graphite valence states

AU - Kihlgren, T

AU - Thiagarajan, Balasubramanian

AU - Wallden, L

AU - Yakimova, R

PY - 2006

Y1 - 2006

N2 - Ultra-thin graphite overlayers prepared by heating SiC crystals can give highly resolved valence band photoemission spectra. This is exploited to monitor K deposition induced energy shifts of graphite valence band states. States near the corners of the Brillouin zone, responsible for the semimetal character of graphite, are observed to show shifts that are nearly equal to the shifts of the uppermost filled sigma state and of an empty state 7.6 eV above EF. The results give credence to the rigid band shift model often used to discuss the electronic structure and charge transfer for graphite ad- and absorption systems. (c) 2006 Elsevier B.V. All rights reserved.

AB - Ultra-thin graphite overlayers prepared by heating SiC crystals can give highly resolved valence band photoemission spectra. This is exploited to monitor K deposition induced energy shifts of graphite valence band states. States near the corners of the Brillouin zone, responsible for the semimetal character of graphite, are observed to show shifts that are nearly equal to the shifts of the uppermost filled sigma state and of an empty state 7.6 eV above EF. The results give credence to the rigid band shift model often used to discuss the electronic structure and charge transfer for graphite ad- and absorption systems. (c) 2006 Elsevier B.V. All rights reserved.

KW - angle resolved photoemission

KW - alkali metals

KW - graphite

U2 - 10.1016/j.susc.2006.01.011

DO - 10.1016/j.susc.2006.01.011

M3 - Article

SN - 0039-6028

VL - 600

SP - 1160

EP - 1164

JO - Surface Science

JF - Surface Science

IS - 5

ER -

K/graphite: Uniform energy shifts of graphite valence states

Abstract

Subject classification (UKÄ)

Free keywords

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