Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in and
- Chinese Academy of Sciences (CAS), Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. Paris-Saclay, Palaiseau (France); CEA, LITEN, Grenoble (France)
- Chinese Academy of Sciences (CAS), Beijing (China); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Tokyo, Chiba (Japan)
- Chinese Academy of Sciences (CAS), Beijing (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Princeton Univ., Princeton, NJ (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. Paris-Saclay, Palaiseau (France); College de France, Paris (France); European Theoretical Synchrotron Facility (France)
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725; SC00112704
- OSTI ID:
- 1339406
- Alternate ID(s):
- OSTI ID: 1330481; OSTI ID: 1345749
- Report Number(s):
- BNL-113593-2017-JA; PRBMDO
- Journal Information:
- Physical Review B, Vol. 94, Issue 15; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Magnetic hexadecapole order and magnetopiezoelectric metal state in
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journal | August 2017 |
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