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Title: Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn 2 As 2 and BaMn 2 Sb 2

Abstract

Here, we performed an angle-resolved photoemission spectroscopy study of BaMn2As2 and BaMn 2 Sb 2 , which are isostructural to the parent compound BaFe2As2 of the 122 family of ferropnictide superconductors. We also show the existence of a strongly kz -dependent band gap with a minimum at the Brillouin zone center, in agreement with their semiconducting properties. Despite the half filling of the electronic 3d shell, we show that the band structure in these materials is almost not renormalized from the Kohn-Sham bands of density functional theory. Finally, our photon-energy-dependent study provides evidence for Mn-pnictide hybridization, which may play a role in tuning the electronic correlations in these compounds.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5];  [6];  [1];  [1];  [1];  [1];  [7];  [8];  [7];  [9];  [10];  [2]
  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  3. Chinese Academy of Sciences (CAS), Beijing (China); Univ. Paris-Saclay, Palaiseau (France); CEA, LITEN, Grenoble (France)
  4. Chinese Academy of Sciences (CAS), Beijing (China); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  5. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Tokyo, Chiba (Japan)
  6. Chinese Academy of Sciences (CAS), Beijing (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
  7. Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  8. Chinese Academy of Sciences (CAS), Beijing (China); Princeton Univ., Princeton, NJ (United States)
  9. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  10. Univ. Paris-Saclay, Palaiseau (France); College de France, Paris (France); European Theoretical Synchrotron Facility (France)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1339406
Alternate Identifier(s):
OSTI ID: 1330481; OSTI ID: 1345749
Report Number(s):
BNL-113593-2017-JA
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
AC05-00OR22725; SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 94; Journal Issue: 15; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhang, W. -L., Richard, P., van Roekeghem, A., Nie, S. -M., Xu, N., Zhang, P., Miao, H., Wu, S. -F., Yin, J. -X., Fu, B. B., Kong, L. -Y., Qian, T., Wang, Z. -J., Fang, Z., Sefat, Athena Safa, Biermann, S., and Ding, H. Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn2As2 and BaMn2Sb2. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.94.155155.
Zhang, W. -L., Richard, P., van Roekeghem, A., Nie, S. -M., Xu, N., Zhang, P., Miao, H., Wu, S. -F., Yin, J. -X., Fu, B. B., Kong, L. -Y., Qian, T., Wang, Z. -J., Fang, Z., Sefat, Athena Safa, Biermann, S., & Ding, H. Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn2As2 and BaMn2Sb2. United States. https://doi.org/10.1103/PhysRevB.94.155155
Zhang, W. -L., Richard, P., van Roekeghem, A., Nie, S. -M., Xu, N., Zhang, P., Miao, H., Wu, S. -F., Yin, J. -X., Fu, B. B., Kong, L. -Y., Qian, T., Wang, Z. -J., Fang, Z., Sefat, Athena Safa, Biermann, S., and Ding, H. 2016. "Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn2As2 and BaMn2Sb2". United States. https://doi.org/10.1103/PhysRevB.94.155155. https://www.osti.gov/servlets/purl/1339406.
@article{osti_1339406,
title = {Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn2As2 and BaMn2Sb2},
author = {Zhang, W. -L. and Richard, P. and van Roekeghem, A. and Nie, S. -M. and Xu, N. and Zhang, P. and Miao, H. and Wu, S. -F. and Yin, J. -X. and Fu, B. B. and Kong, L. -Y. and Qian, T. and Wang, Z. -J. and Fang, Z. and Sefat, Athena Safa and Biermann, S. and Ding, H.},
abstractNote = {Here, we performed an angle-resolved photoemission spectroscopy study of BaMn2As2 and BaMn 2 Sb 2 , which are isostructural to the parent compound BaFe2As2 of the 122 family of ferropnictide superconductors. We also show the existence of a strongly kz -dependent band gap with a minimum at the Brillouin zone center, in agreement with their semiconducting properties. Despite the half filling of the electronic 3d shell, we show that the band structure in these materials is almost not renormalized from the Kohn-Sham bands of density functional theory. Finally, our photon-energy-dependent study provides evidence for Mn-pnictide hybridization, which may play a role in tuning the electronic correlations in these compounds.},
doi = {10.1103/PhysRevB.94.155155},
url = {https://www.osti.gov/biblio/1339406}, journal = {Physical Review B},
issn = {2469-9950},
number = 15,
volume = 94,
place = {United States},
year = {Mon Oct 31 00:00:00 EDT 2016},
month = {Mon Oct 31 00:00:00 EDT 2016}
}

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Cited by: 14 works
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Works referencing / citing this record:

Magnetic hexadecapole order and magnetopiezoelectric metal state in Ba 1 x K x Mn 2 As 2
journal, August 2017