Photoemission spectroscopy study of the hole-doped Haldane chain Y2-xSrxBaNiO5

Luca Gavioli; Y. Fagot-Revurat; D. Malterre; F. X. Lannuzel; E. Janod; C. Payen; F. Bertran

doi:10.1016/S0168-583X(02)01684-1

Photoemission spectroscopy study of the hole-doped Haldane chain Y2-xSrxBaNiO5

Luca Gavioli, Y. Fagot-Revurat, D. Malterre, F. X. Lannuzel, E. Janod, C. Payen, F. Bertran

Risultato della ricerca: Contributo in rivista › Articolo in rivista › peer review

Abstract

In this paper, we present photoemission experiments on the hole-doped Haldane chain compound Y2-xSrxBaNiO5. By using the photon energy dependence of the photoemission cross section, we identified the symmetry of the first ionisation states (d type). Hole doping in this system leads to a significant increase in the spectral weight at the top of the valence band without any change in the vicinity of the Fermi energy. This behavior, never observed in other charge transfer oxides, could result from the Ni-3d-O-2P hybridization enhancement due to the shortening of the relevant Ni-O distance with doping. (C) 2002 Elsevier Science B.V. All rights reserved.

Lingua originale	English
pagine (da-a)	242-247
Numero di pagine	6
Rivista	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume	200
DOI	https://doi.org/10.1016/S0168-583X(02)01684-1
Stato di pubblicazione	Pubblicato - 2003

Keywords

charge transfer insulator
hole doping
photoemission spectroscopy
strongly correlated systems

Accesso al documento

10.1016/S0168-583X(02)01684-1

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@article{47557f0b108844ea8959cbc569053392,

title = "Photoemission spectroscopy study of the hole-doped Haldane chain Y2-xSrxBaNiO5",

abstract = "In this paper, we present photoemission experiments on the hole-doped Haldane chain compound Y2-xSrxBaNiO5. By using the photon energy dependence of the photoemission cross section, we identified the symmetry of the first ionisation states (d type). Hole doping in this system leads to a significant increase in the spectral weight at the top of the valence band without any change in the vicinity of the Fermi energy. This behavior, never observed in other charge transfer oxides, could result from the Ni-3d-O-2P hybridization enhancement due to the shortening of the relevant Ni-O distance with doping. (C) 2002 Elsevier Science B.V. All rights reserved.",

keywords = "charge transfer insulator, hole doping, photoemission spectroscopy, strongly correlated systems, charge transfer insulator, hole doping, photoemission spectroscopy, strongly correlated systems",

author = "Luca Gavioli and Y. Fagot-Revurat and D. Malterre and Lannuzel, {F. X.} and E. Janod and C. Payen and F. Bertran",

year = "2003",

doi = "10.1016/S0168-583X(02)01684-1",

language = "English",

volume = "200",

pages = "242--247",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598",

}

Photoemission spectroscopy study of the hole-doped Haldane chain Y2-xSrxBaNiO5. / Gavioli, Luca; Fagot-Revurat, Y.; Malterre, D.; Lannuzel, F. X.; Janod, E.; Payen, C.; Bertran, F.

In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 200, 2003, pag. 242-247.

Risultato della ricerca: Contributo in rivista › Articolo in rivista › peer review

TY - JOUR

T1 - Photoemission spectroscopy study of the hole-doped Haldane chain Y2-xSrxBaNiO5

AU - Gavioli, Luca

AU - Fagot-Revurat, Y.

AU - Malterre, D.

AU - Lannuzel, F. X.

AU - Janod, E.

AU - Payen, C.

AU - Bertran, F.

PY - 2003

Y1 - 2003

N2 - In this paper, we present photoemission experiments on the hole-doped Haldane chain compound Y2-xSrxBaNiO5. By using the photon energy dependence of the photoemission cross section, we identified the symmetry of the first ionisation states (d type). Hole doping in this system leads to a significant increase in the spectral weight at the top of the valence band without any change in the vicinity of the Fermi energy. This behavior, never observed in other charge transfer oxides, could result from the Ni-3d-O-2P hybridization enhancement due to the shortening of the relevant Ni-O distance with doping. (C) 2002 Elsevier Science B.V. All rights reserved.

AB - In this paper, we present photoemission experiments on the hole-doped Haldane chain compound Y2-xSrxBaNiO5. By using the photon energy dependence of the photoemission cross section, we identified the symmetry of the first ionisation states (d type). Hole doping in this system leads to a significant increase in the spectral weight at the top of the valence band without any change in the vicinity of the Fermi energy. This behavior, never observed in other charge transfer oxides, could result from the Ni-3d-O-2P hybridization enhancement due to the shortening of the relevant Ni-O distance with doping. (C) 2002 Elsevier Science B.V. All rights reserved.

KW - charge transfer insulator

KW - hole doping

KW - photoemission spectroscopy

KW - strongly correlated systems

KW - charge transfer insulator

KW - hole doping

KW - photoemission spectroscopy

KW - strongly correlated systems

UR - http://hdl.handle.net/10807/20733

U2 - 10.1016/S0168-583X(02)01684-1

DO - 10.1016/S0168-583X(02)01684-1

M3 - Article

VL - 200

SP - 242

EP - 247

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

ER -