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Title: The 7 × 1 Fermi Surface Reconstruction in a Two-dimensional f -electron Charge Density Wave System: PrTe 3

Abstract

The electronic structure of a charge density wave (CDW) system PrTe 3 and its modulated structure in the CDW phase have been investigated by employing ARPES, XAS, Pr 4 f RPES, and first-principles band structure calculation. Pr ions are found to be nearly trivalent, supporting the CDW instability in the metallic Te sheets through partial filling. Finite Pr 4 f spectral weight is observed near the Fermi level, suggesting the non-negligible Pr 4 f contribution to the CDW formation through the Pr 4 f -Te 5p hybridization. The two-fold symmetric features in the measured Fermi surface (FS) of PrTe 3 are explained by the calculated FS for the assumed 7 × 1 CDW supercell formation in Te sheets. The shadow bands and the corresponding very weak FSs are observed, which originate from both the band folding due to the 3D interaction of Te sheets with neighboring Pr-Te layers and that due to the CDW-induced FS reconstruction. The straight vertical FSs are observed along k z, demonstrating the nearly 2D character for the near-EF states. The observed linear dichroism reveals the in-plane orbital character of the near-E F Te 5p states.

Authors:
 [1];  [1];  [1];  [2];  [3];  [3];  [4];  [3];  [5];  [5];  [1]
  1. Catholic Univ. of Korea, Bucheon (Korea). Dept. of Physics
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
  3. Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Physics
  4. Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Physics, MPPC CPM
  5. Daegu Gyeongbuk Inst. of Science and Technology (DGIST) (Korea, Republic of). Dept. of Emerging Materials Science
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1379528
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; electronic properties and materials

Citation Formats

Lee, Eunsook, Kim, D. H., Kim, Hyun Woo, Denlinger, J. D., Kim, Heejung, Kim, Junwon, Kim, Kyoo, Min, B. I., Min, B. H., Kwon, Y. S., and Kang, J. -S. The 7 × 1 Fermi Surface Reconstruction in a Two-dimensional f -electron Charge Density Wave System: PrTe3. United States: N. p., 2016. Web. doi:10.1038/srep30318.
Lee, Eunsook, Kim, D. H., Kim, Hyun Woo, Denlinger, J. D., Kim, Heejung, Kim, Junwon, Kim, Kyoo, Min, B. I., Min, B. H., Kwon, Y. S., & Kang, J. -S. The 7 × 1 Fermi Surface Reconstruction in a Two-dimensional f -electron Charge Density Wave System: PrTe3. United States. doi:10.1038/srep30318.
Lee, Eunsook, Kim, D. H., Kim, Hyun Woo, Denlinger, J. D., Kim, Heejung, Kim, Junwon, Kim, Kyoo, Min, B. I., Min, B. H., Kwon, Y. S., and Kang, J. -S. Mon . "The 7 × 1 Fermi Surface Reconstruction in a Two-dimensional f -electron Charge Density Wave System: PrTe3". United States. doi:10.1038/srep30318. https://www.osti.gov/servlets/purl/1379528.
@article{osti_1379528,
title = {The 7 × 1 Fermi Surface Reconstruction in a Two-dimensional f -electron Charge Density Wave System: PrTe3},
author = {Lee, Eunsook and Kim, D. H. and Kim, Hyun Woo and Denlinger, J. D. and Kim, Heejung and Kim, Junwon and Kim, Kyoo and Min, B. I. and Min, B. H. and Kwon, Y. S. and Kang, J. -S.},
abstractNote = {The electronic structure of a charge density wave (CDW) system PrTe3 and its modulated structure in the CDW phase have been investigated by employing ARPES, XAS, Pr 4 f RPES, and first-principles band structure calculation. Pr ions are found to be nearly trivalent, supporting the CDW instability in the metallic Te sheets through partial filling. Finite Pr 4 f spectral weight is observed near the Fermi level, suggesting the non-negligible Pr 4 f contribution to the CDW formation through the Pr 4 f -Te 5p hybridization. The two-fold symmetric features in the measured Fermi surface (FS) of PrTe3 are explained by the calculated FS for the assumed 7 × 1 CDW supercell formation in Te sheets. The shadow bands and the corresponding very weak FSs are observed, which originate from both the band folding due to the 3D interaction of Te sheets with neighboring Pr-Te layers and that due to the CDW-induced FS reconstruction. The straight vertical FSs are observed along kz, demonstrating the nearly 2D character for the near-EF states. The observed linear dichroism reveals the in-plane orbital character of the near-EF Te 5p states.},
doi = {10.1038/srep30318},
journal = {Scientific Reports},
number = 1,
volume = 6,
place = {United States},
year = {2016},
month = {7}
}

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