Madelung potentials and covalency effect in strained La1-x Srx MnO3 thin films studied by core-level photoemission spectroscopy

H. Wadati, A. Maniwa, A. Chikamatsu, H. Kumigashira, M. Oshima, Takashi Mizokawa, A. Fujimori, G. A. Sawatzky

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We have studied the effects of Madelung potentials on the shifts in the core-level photoemission spectra by investigating La0.6 Sr0.4 MnO3 thin films grown on three kinds of substrates, SrTiO3, (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7, and LaAlO3. The experimental shifts in the La4d and Sr3d core levels are almost the same as the calculated Madelung potentials, which we attribute to the nearly ionic character of these atoms. On the other hand, the experimental shifts in the O1s and Mn2p core levels are negligibly small. We consider that this is due to the strong covalent character of the Mn-O bonds.

Original languageEnglish
Article number125107
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number12
DOIs
Publication statusPublished - 2009 Sep 11
Externally publishedYes

Fingerprint

Core levels
Photoelectron spectroscopy
photoelectric emission
Thin films
shift
thin films
spectroscopy
Photoemission
Atoms
Substrates
atoms

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Madelung potentials and covalency effect in strained La1-x Srx MnO3 thin films studied by core-level photoemission spectroscopy. / Wadati, H.; Maniwa, A.; Chikamatsu, A.; Kumigashira, H.; Oshima, M.; Mizokawa, Takashi; Fujimori, A.; Sawatzky, G. A.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 80, No. 12, 125107, 11.09.2009.

Research output: Contribution to journalArticle

Wadati, H. ; Maniwa, A. ; Chikamatsu, A. ; Kumigashira, H. ; Oshima, M. ; Mizokawa, Takashi ; Fujimori, A. ; Sawatzky, G. A. / Madelung potentials and covalency effect in strained La1-x Srx MnO3 thin films studied by core-level photoemission spectroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2009 ; Vol. 80, No. 12.
@article{a35ba4ddfae94ff48b550bc8f209feb8,
title = "Madelung potentials and covalency effect in strained La1-x Srx MnO3 thin films studied by core-level photoemission spectroscopy",
abstract = "We have studied the effects of Madelung potentials on the shifts in the core-level photoemission spectra by investigating La0.6 Sr0.4 MnO3 thin films grown on three kinds of substrates, SrTiO3, (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7, and LaAlO3. The experimental shifts in the La4d and Sr3d core levels are almost the same as the calculated Madelung potentials, which we attribute to the nearly ionic character of these atoms. On the other hand, the experimental shifts in the O1s and Mn2p core levels are negligibly small. We consider that this is due to the strong covalent character of the Mn-O bonds.",
author = "H. Wadati and A. Maniwa and A. Chikamatsu and H. Kumigashira and M. Oshima and Takashi Mizokawa and A. Fujimori and Sawatzky, {G. A.}",
year = "2009",
month = "9",
day = "11",
doi = "10.1103/PhysRevB.80.125107",
language = "English",
volume = "80",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "12",

}

TY - JOUR

T1 - Madelung potentials and covalency effect in strained La1-x Srx MnO3 thin films studied by core-level photoemission spectroscopy

AU - Wadati, H.

AU - Maniwa, A.

AU - Chikamatsu, A.

AU - Kumigashira, H.

AU - Oshima, M.

AU - Mizokawa, Takashi

AU - Fujimori, A.

AU - Sawatzky, G. A.

PY - 2009/9/11

Y1 - 2009/9/11

N2 - We have studied the effects of Madelung potentials on the shifts in the core-level photoemission spectra by investigating La0.6 Sr0.4 MnO3 thin films grown on three kinds of substrates, SrTiO3, (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7, and LaAlO3. The experimental shifts in the La4d and Sr3d core levels are almost the same as the calculated Madelung potentials, which we attribute to the nearly ionic character of these atoms. On the other hand, the experimental shifts in the O1s and Mn2p core levels are negligibly small. We consider that this is due to the strong covalent character of the Mn-O bonds.

AB - We have studied the effects of Madelung potentials on the shifts in the core-level photoemission spectra by investigating La0.6 Sr0.4 MnO3 thin films grown on three kinds of substrates, SrTiO3, (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7, and LaAlO3. The experimental shifts in the La4d and Sr3d core levels are almost the same as the calculated Madelung potentials, which we attribute to the nearly ionic character of these atoms. On the other hand, the experimental shifts in the O1s and Mn2p core levels are negligibly small. We consider that this is due to the strong covalent character of the Mn-O bonds.

UR - http://www.scopus.com/inward/record.url?scp=70350644788&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350644788&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.80.125107

DO - 10.1103/PhysRevB.80.125107

M3 - Article

AN - SCOPUS:70350644788

VL - 80

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 12

M1 - 125107

ER -