Fermi Surface of Metallic V2O3 from Angle-Resolved Photoemission: Mid-level Filling of egπ Bands

Lo Vecchio, I.; Denlinger, J. D.; Krupin, O.; Kim, B. J.; Metcalf, P. A.; Lupi, S.; Allen, J. W.; Lanzara, A.

doi:10.1103/physrevlett.117.166401

Title: Fermi Surface of Metallic $V_{2} O_{3}$ from Angle-Resolved Photoemission: Mid-level Filling of $e_{g}^{π}$ Bands

Journal Article · Tue Oct 11 00:00:00 EDT 2016 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.117.166401· OSTI ID:1581048

Lo Vecchio, I. ^[1]; Denlinger, J. D. ^[2]; Krupin, O. ^[2]; Kim, B. J. ^[3]; Metcalf, P. A. ^[4]; Lupi, S. ^[5]; Allen, J. W. ^[6]; Lanzara, A. ^[7]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Max-Planck-Inst. fur Festkörperforschung, Stuttgart (Germany)
Purdue Univ., West Lafayette, IN (United States)
Univ. di Roma “Sapienza”, Rome (Italy)
Univ. of Michigan, Ann Arbor, MI (United States). Randall Lab. of Physics
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

Using angle resolved photoemission spectroscopy, we report the first band dispersions and distinct features of the bulk Fermi surface (FS) in the paramagnetic metallic phase of the prototypical metal-insulator transition material V$$_{2}O_{3}$$. Along the c axis we observe both an electron pocket and a triangular holelike FS topology, showing that both V 3d $$a_{1g}$$ and e$$_{g}^{π}$$ states contribute to the FS. Here, these results challenge the existing correlation-enhanced crystal field splitting theoretical explanation for the transition mechanism and pave the way for the solution of this mystery.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1581048

Alternate ID(s):: OSTI ID: 1328632

Journal Information:: Physical Review Letters, Vol. 117, Issue 16; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 12 works

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References (29)

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