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Title: Electronic-structure evolution through the metal-insulator transition in RNiO{sub 3}

Abstract

We performed a photoemission investigation of the electronic structure of PrNiO{sub 3} and NdNiO{sub 3} through the first order (paramagnetic) metal to (antiferromagnetic) insulator transition. Surprisingly, the data reveal a temperature-dependent loss of spectral weight near the chemical potential, which extends well below the coincident metal-insulator (T{sub MI}) and magnetic (T{sub N{acute e}el}) transition temperatures. This is in contrast with the behavior in SmNiO{sub 3} and EuNiO{sub 3}, where the two transitions are separate. The spectral properties clearly indicate two distinct regimes for RNiO{sub 3} with T{sub MI}=T{sub N{acute e}el} and T{sub MI}{gt}T{sub N{acute e}el}. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
; ; ; ;  [1]; ;  [2];  [3]
  1. Institut de Physique Appliquee, Ecole Polytechnique Federale, CH-1015 Lausanne (Switzerland)
  2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439-4845 (United States)
  3. Laboratoire des Fluorures, UPRES-A CNRS 6010, Universite du Maine, F-72017 Le Mans Cedex 9 (France)
Publication Date:
OSTI Identifier:
686557
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 60; Journal Issue: 12; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; PRASEODYMIUM COMPOUNDS; NEODYMIUM COMPOUNDS; ELECTRONIC STRUCTURE; ELECTRIC CONDUCTIVITY; PRASEODYMIUM OXIDES; NICKEL OXIDES; NEODYMIUM OXIDES; NICKELATES; PHOTOEMISSION; SAMARIUM OXIDES; EUROPIUM OXIDES; NEEL TEMPERATURE; MAGNETIC PROPERTIES

Citation Formats

Vobornik, I., Perfetti, L., Zacchigna, M., Grioni, M., Margaritondo, G., Mesot, J., Medarde, M., and Lacorre, P. Electronic-structure evolution through the metal-insulator transition in RNiO{sub 3}. United States: N. p., 1999. Web. doi:10.1103/PhysRevB.60.R8426.
Vobornik, I., Perfetti, L., Zacchigna, M., Grioni, M., Margaritondo, G., Mesot, J., Medarde, M., & Lacorre, P. Electronic-structure evolution through the metal-insulator transition in RNiO{sub 3}. United States. doi:10.1103/PhysRevB.60.R8426.
Vobornik, I., Perfetti, L., Zacchigna, M., Grioni, M., Margaritondo, G., Mesot, J., Medarde, M., and Lacorre, P. Wed . "Electronic-structure evolution through the metal-insulator transition in RNiO{sub 3}". United States. doi:10.1103/PhysRevB.60.R8426.
@article{osti_686557,
title = {Electronic-structure evolution through the metal-insulator transition in RNiO{sub 3}},
author = {Vobornik, I. and Perfetti, L. and Zacchigna, M. and Grioni, M. and Margaritondo, G. and Mesot, J. and Medarde, M. and Lacorre, P.},
abstractNote = {We performed a photoemission investigation of the electronic structure of PrNiO{sub 3} and NdNiO{sub 3} through the first order (paramagnetic) metal to (antiferromagnetic) insulator transition. Surprisingly, the data reveal a temperature-dependent loss of spectral weight near the chemical potential, which extends well below the coincident metal-insulator (T{sub MI}) and magnetic (T{sub N{acute e}el}) transition temperatures. This is in contrast with the behavior in SmNiO{sub 3} and EuNiO{sub 3}, where the two transitions are separate. The spectral properties clearly indicate two distinct regimes for RNiO{sub 3} with T{sub MI}=T{sub N{acute e}el} and T{sub MI}{gt}T{sub N{acute e}el}. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.60.R8426},
journal = {Physical Review, B: Condensed Matter},
number = 12,
volume = 60,
place = {United States},
year = {1999},
month = {9}
}