Dependence of the electronic structure of SrRuO3 and its degree of correlation on cation off-stoichiometry

W. Siemons, Gertjan Koster, Arturas Vailionis, Hideki Yamamoto, David H.A. Blank, Malcolm R. Beasley

Research output: Contribution to journalArticleAcademicpeer-review

75 Citations (Scopus)
13 Downloads (Pure)

Abstract

We have grown and studied high quality SrRuO3 films grown by molecular beam epitaxy as well as pulsed laser deposition. By changing the oxygen activity during deposition, we were able to make SrRuO3 samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). This ability to control the ruthenium stoichiometry has permitted us to make a systematic study of the dependence of the degree of electron correlation in SrRuO3 on stoichiometry using transport and photoemission experiments. We have compared the measured ultraviolet photoemission spectroscopy spectra with calculated density of states spectra and offer explanations for the large observed differences between the two.
Original languageUndefined
Pages (from-to)075126-
Number of pages6
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume76
Issue number7
DOIs
Publication statusPublished - 2007

Keywords

  • IR-59159
  • METIS-242622

Cite this

@article{18d85b199bc5435ab9fd2e9e4193e70b,
title = "Dependence of the electronic structure of SrRuO3 and its degree of correlation on cation off-stoichiometry",
abstract = "We have grown and studied high quality SrRuO3 films grown by molecular beam epitaxy as well as pulsed laser deposition. By changing the oxygen activity during deposition, we were able to make SrRuO3 samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). This ability to control the ruthenium stoichiometry has permitted us to make a systematic study of the dependence of the degree of electron correlation in SrRuO3 on stoichiometry using transport and photoemission experiments. We have compared the measured ultraviolet photoemission spectroscopy spectra with calculated density of states spectra and offer explanations for the large observed differences between the two.",
keywords = "IR-59159, METIS-242622",
author = "W. Siemons and Gertjan Koster and Arturas Vailionis and Hideki Yamamoto and Blank, {David H.A.} and Beasley, {Malcolm R.}",
year = "2007",
doi = "10.1103/PhysRevB.76.075126",
language = "Undefined",
volume = "76",
pages = "075126--",
journal = "Physical review B: Covering condensed matter and materials physics",
issn = "2469-9950",
publisher = "American Institute of Physics",
number = "7",

}

Dependence of the electronic structure of SrRuO3 and its degree of correlation on cation off-stoichiometry. / Siemons, W.; Koster, Gertjan; Vailionis, Arturas; Yamamoto, Hideki; Blank, David H.A.; Beasley, Malcolm R.

In: Physical Review B (Condensed Matter and Materials Physics), Vol. 76, No. 7, 2007, p. 075126-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dependence of the electronic structure of SrRuO3 and its degree of correlation on cation off-stoichiometry

AU - Siemons, W.

AU - Koster, Gertjan

AU - Vailionis, Arturas

AU - Yamamoto, Hideki

AU - Blank, David H.A.

AU - Beasley, Malcolm R.

PY - 2007

Y1 - 2007

N2 - We have grown and studied high quality SrRuO3 films grown by molecular beam epitaxy as well as pulsed laser deposition. By changing the oxygen activity during deposition, we were able to make SrRuO3 samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). This ability to control the ruthenium stoichiometry has permitted us to make a systematic study of the dependence of the degree of electron correlation in SrRuO3 on stoichiometry using transport and photoemission experiments. We have compared the measured ultraviolet photoemission spectroscopy spectra with calculated density of states spectra and offer explanations for the large observed differences between the two.

AB - We have grown and studied high quality SrRuO3 films grown by molecular beam epitaxy as well as pulsed laser deposition. By changing the oxygen activity during deposition, we were able to make SrRuO3 samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). This ability to control the ruthenium stoichiometry has permitted us to make a systematic study of the dependence of the degree of electron correlation in SrRuO3 on stoichiometry using transport and photoemission experiments. We have compared the measured ultraviolet photoemission spectroscopy spectra with calculated density of states spectra and offer explanations for the large observed differences between the two.

KW - IR-59159

KW - METIS-242622

U2 - 10.1103/PhysRevB.76.075126

DO - 10.1103/PhysRevB.76.075126

M3 - Article

VL - 76

SP - 075126-

JO - Physical review B: Covering condensed matter and materials physics

JF - Physical review B: Covering condensed matter and materials physics

SN - 2469-9950

IS - 7

ER -