Effect of 3d doping on the electronic structure of BaFe2As2
Abstract
The electronic structure of BaFe2As2 doped with Co, Ni and Cu has been studied by a variety of experimental and theoretical methods, but a clear picture of the dopant 3d states has not yet emerged. Herein we provide experimental evidence of the distribution of Co, Ni and Cu 3d states in the valence band. We conclude that the Co and Ni 3d states provide additional free carriers to the Fermi level, while the Cu 3d states are found at the bottom of the valence band in a localized 3d10 shell. These findings help shed light on why superconductivity can occur in BaFe2As2 doped with Co and Ni but not Cu.
- Authors:
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1045818
- Report Number(s):
- IS-J 7706
Journal ID: 0953-8984
- DOE Contract Number:
- DE-AC02-07CH11358
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Physics: Condensed Matter
- Additional Journal Information:
- Journal Volume: 24; Journal Issue: 21
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
McLeod, John A, Buling, A, Green, R J, Boyko, T D, Skorikov, N A, Kurmaev, E Z, Neumann, M, Finkelstein, L D, Ni, Ni, Thaler, Alexander, Budko, Serguei L, Canfield, Paul, and Moewes, A. Effect of 3d doping on the electronic structure of BaFe2As2. United States: N. p., 2012.
Web. doi:10.1088/0953-8984/24/21/215501.
McLeod, John A, Buling, A, Green, R J, Boyko, T D, Skorikov, N A, Kurmaev, E Z, Neumann, M, Finkelstein, L D, Ni, Ni, Thaler, Alexander, Budko, Serguei L, Canfield, Paul, & Moewes, A. Effect of 3d doping on the electronic structure of BaFe2As2. United States. https://doi.org/10.1088/0953-8984/24/21/215501
McLeod, John A, Buling, A, Green, R J, Boyko, T D, Skorikov, N A, Kurmaev, E Z, Neumann, M, Finkelstein, L D, Ni, Ni, Thaler, Alexander, Budko, Serguei L, Canfield, Paul, and Moewes, A. 2012.
"Effect of 3d doping on the electronic structure of BaFe2As2". United States. https://doi.org/10.1088/0953-8984/24/21/215501.
@article{osti_1045818,
title = {Effect of 3d doping on the electronic structure of BaFe2As2},
author = {McLeod, John A and Buling, A and Green, R J and Boyko, T D and Skorikov, N A and Kurmaev, E Z and Neumann, M and Finkelstein, L D and Ni, Ni and Thaler, Alexander and Budko, Serguei L and Canfield, Paul and Moewes, A},
abstractNote = {The electronic structure of BaFe2As2 doped with Co, Ni and Cu has been studied by a variety of experimental and theoretical methods, but a clear picture of the dopant 3d states has not yet emerged. Herein we provide experimental evidence of the distribution of Co, Ni and Cu 3d states in the valence band. We conclude that the Co and Ni 3d states provide additional free carriers to the Fermi level, while the Cu 3d states are found at the bottom of the valence band in a localized 3d10 shell. These findings help shed light on why superconductivity can occur in BaFe2As2 doped with Co and Ni but not Cu.},
doi = {10.1088/0953-8984/24/21/215501},
url = {https://www.osti.gov/biblio/1045818},
journal = {Journal of Physics: Condensed Matter},
number = 21,
volume = 24,
place = {United States},
year = {Wed Apr 25 00:00:00 EDT 2012},
month = {Wed Apr 25 00:00:00 EDT 2012}
}
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