Pseudogap behavior in Pr0.5Sr0.5MnO3: A photoemission study
(2011) In Surface Science 605(9-10). p.875-877- Abstract
- The valence band electronic structure of Pr0.5Sr0.5MnO3 has been investigated across its paramagnetic metallic (PMM)-ferromagnetic metallic (FMM)-antiferromagnetic insulator (AFMI) transition. Using surface sensitive high resolution photoemission we have conclusively demonstrated the presence of a pseudogap of magnitude 80 meV in the near Fermi level electronic spectrum in the PMM and FMM phases and finite intensity at the Fermi level in the charge ordering (CO)-AFMI phase. The pseudogap behavior is explained in terms of the strong electron-phonon interaction and the formation of Jahn Teller UT) polarons, indicating the charge localizations. The finite intensity at the Fermi level in the insulating phase showed a lack of charge ordering in... (More)
- The valence band electronic structure of Pr0.5Sr0.5MnO3 has been investigated across its paramagnetic metallic (PMM)-ferromagnetic metallic (FMM)-antiferromagnetic insulator (AFMI) transition. Using surface sensitive high resolution photoemission we have conclusively demonstrated the presence of a pseudogap of magnitude 80 meV in the near Fermi level electronic spectrum in the PMM and FMM phases and finite intensity at the Fermi level in the charge ordering (CO)-AFMI phase. The pseudogap behavior is explained in terms of the strong electron-phonon interaction and the formation of Jahn Teller UT) polarons, indicating the charge localizations. The finite intensity at the Fermi level in the insulating phase showed a lack of charge ordering in the surface of the Pr0.5Sr0.5MnO3 samples. (C) 2011 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1964181
- author
- Pal, Prabir LU ; Dalai, M. K. and Ulfat, Intikhab LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Electronic structure, Photoemission, Colossal magnetoresistance
- in
- Surface Science
- volume
- 605
- issue
- 9-10
- pages
- 875 - 877
- publisher
- Elsevier
- external identifiers
-
- wos:000290050600006
- scopus:79953304024
- ISSN
- 0039-6028
- DOI
- 10.1016/j.susc.2011.01.031
- language
- English
- LU publication?
- yes
- id
- 7f467178-b8ca-4a3d-8868-5b7b525b72d3 (old id 1964181)
- date added to LUP
- 2016-04-01 13:18:23
- date last changed
- 2022-01-27 18:29:48
@article{7f467178-b8ca-4a3d-8868-5b7b525b72d3, abstract = {{The valence band electronic structure of Pr0.5Sr0.5MnO3 has been investigated across its paramagnetic metallic (PMM)-ferromagnetic metallic (FMM)-antiferromagnetic insulator (AFMI) transition. Using surface sensitive high resolution photoemission we have conclusively demonstrated the presence of a pseudogap of magnitude 80 meV in the near Fermi level electronic spectrum in the PMM and FMM phases and finite intensity at the Fermi level in the charge ordering (CO)-AFMI phase. The pseudogap behavior is explained in terms of the strong electron-phonon interaction and the formation of Jahn Teller UT) polarons, indicating the charge localizations. The finite intensity at the Fermi level in the insulating phase showed a lack of charge ordering in the surface of the Pr0.5Sr0.5MnO3 samples. (C) 2011 Elsevier B.V. All rights reserved.}}, author = {{Pal, Prabir and Dalai, M. K. and Ulfat, Intikhab}}, issn = {{0039-6028}}, keywords = {{Electronic structure; Photoemission; Colossal magnetoresistance}}, language = {{eng}}, number = {{9-10}}, pages = {{875--877}}, publisher = {{Elsevier}}, series = {{Surface Science}}, title = {{Pseudogap behavior in Pr0.5Sr0.5MnO3: A photoemission study}}, url = {{http://dx.doi.org/10.1016/j.susc.2011.01.031}}, doi = {{10.1016/j.susc.2011.01.031}}, volume = {{605}}, year = {{2011}}, }