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Title: Electronic structure reconstruction across the antiferromagnetic transition in TaFe₁̣₂₃Te₃ spin ladder

Journal Article · · Chinese Physics Letters
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  1. Fudan Univ., Shanghai (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advaned Microstructures, Nanjing (China)
  4. Univ. of Science and Technology of China, Hefei (China)
  5. Hiroshima Univ., Hiroshima (Japan)
  6. Institute for Molecular Science, Okazaki (Japan)
  7. Paul-Scherrer Institut, Villigen (Switzerland)
+ Show Author Affiliations

With angle-resolved photoemission spectroscopy, we studied the electronic structure of TaFe₁̣₂₃Te₃, a two-leg spin ladder compound with a novel antiferromagnetic ground state. Quasi-two-dimensional Fermi surface is observed, with sizable inter-ladder hopping. Moreover, instead of observing an energy gap at the Fermi surface in the antiferromagnetic state, we observed the shifts of various bands. Combining these observations with density-functional-theory calculations, we propose that the large scale reconstruction of the electronic structure, caused by the interactions between coexisting itinerant electrons and local moments, is most likely the driving force of the magnetic transition. Thus TaFe₁̣₂₃Te₃ serves as a simpler platform that contains similar ingredients as the parent compounds of iron-based superconductors.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1201340
Report Number(s):
BNL-107868-2015-JA; R&D Project: PM002; KC0202030
Journal Information:
Chinese Physics Letters, Vol. 32, Issue 2; ISSN 0256-307X
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (18)

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
condensed matter
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