Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy

K. W. Post; Alexander F. Goncharov; Z. P. Yin; J. W. Simonson; Jing Guo; Liling Sun; S. Zellman; M. D. Goldflam; H. T. Stinson; B. C. Chapler; D. E. McNally; Zhongxian Zhao; G. Kotliar; M. C. Aronson; D. N. Basov

doi:10.1103/PhysRevB.94.045115

Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy

K. W. Post
, Alexander F. Goncharov
, Z. P. Yin
, J. W. Simonson
, Jing Guo
, Liling Sun
, S. Zellman
, M. D. Goldflam
, H. T. Stinson
, B. C. Chapler
, D. E. McNally
, Zhongxian Zhao
, G. Kotliar
, M. C. Aronson
, D. N. Basov

Physics

Farmingdale State College

Research output: Contribution to journal › Article › peer-review

Abstract

We spectroscopically investigated the energy gap of the correlated antiferromagnetic insulator LaMnPO1-xFx (x=0.0 and 0.04) as a function of temperature and pressure, separately, in conjunction with many-body electronic structure calculations. These results show that the electronic structure in all measured regimes is well described by a model that includes both Mott-Hubbard interactions and Hund's rule coupling. Moreover, we find that by applying external pressure, thereby reducing the effective Mott-Hubbard interaction and Hund's coupling, the energy gap in LaMnPO1-xFx can be fully closed, yielding a metallic state.

Original language	English
Article number	045115
Journal	Physical Review B
Volume	94
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.94.045115
State	Published - Jul 14 2016

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Post, K. W., Goncharov, A. F., Yin, Z. P., Simonson, J. W., Guo, J., Sun, L., Zellman, S., Goldflam, M. D., Stinson, H. T., Chapler, B. C., McNally, D. E., Zhao, Z., Kotliar, G., Aronson, M. C., & Basov, D. N. (2016). Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy. Physical Review B, 94(4), Article 045115. https://doi.org/10.1103/PhysRevB.94.045115

@article{1105346dc05341b0b3a64142e1436ad9,

title = "Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy",

abstract = "We spectroscopically investigated the energy gap of the correlated antiferromagnetic insulator LaMnPO1-xFx (x=0.0 and 0.04) as a function of temperature and pressure, separately, in conjunction with many-body electronic structure calculations. These results show that the electronic structure in all measured regimes is well described by a model that includes both Mott-Hubbard interactions and Hund's rule coupling. Moreover, we find that by applying external pressure, thereby reducing the effective Mott-Hubbard interaction and Hund's coupling, the energy gap in LaMnPO1-xFx can be fully closed, yielding a metallic state.",

author = "Post, \{K. W.\} and Goncharov, \{Alexander F.\} and Yin, \{Z. P.\} and Simonson, \{J. W.\} and Jing Guo and Liling Sun and S. Zellman and Goldflam, \{M. D.\} and Stinson, \{H. T.\} and Chapler, \{B. C.\} and McNally, \{D. E.\} and Zhongxian Zhao and G. Kotliar and Aronson, \{M. C.\} and Basov, \{D. N.\}",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = jul,

day = "14",

doi = "10.1103/PhysRevB.94.045115",

language = "English",

volume = "94",

journal = "Physical Review B",

issn = "2469-9950",

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Post, KW, Goncharov, AF, Yin, ZP, Simonson, JW, Guo, J, Sun, L, Zellman, S, Goldflam, MD, Stinson, HT, Chapler, BC, McNally, DE, Zhao, Z, Kotliar, G, Aronson, MC & Basov, DN 2016, 'Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy', Physical Review B, vol. 94, no. 4, 045115. https://doi.org/10.1103/PhysRevB.94.045115

TY - JOUR

T1 - Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy

AU - Post, K. W.

AU - Goncharov, Alexander F.

AU - Yin, Z. P.

AU - Simonson, J. W.

AU - Guo, Jing

AU - Sun, Liling

AU - Zellman, S.

AU - Goldflam, M. D.

AU - Stinson, H. T.

AU - Chapler, B. C.

AU - McNally, D. E.

AU - Zhao, Zhongxian

AU - Kotliar, G.

AU - Aronson, M. C.

AU - Basov, D. N.

PY - 2016/7/14

Y1 - 2016/7/14

N2 - We spectroscopically investigated the energy gap of the correlated antiferromagnetic insulator LaMnPO1-xFx (x=0.0 and 0.04) as a function of temperature and pressure, separately, in conjunction with many-body electronic structure calculations. These results show that the electronic structure in all measured regimes is well described by a model that includes both Mott-Hubbard interactions and Hund's rule coupling. Moreover, we find that by applying external pressure, thereby reducing the effective Mott-Hubbard interaction and Hund's coupling, the energy gap in LaMnPO1-xFx can be fully closed, yielding a metallic state.

AB - We spectroscopically investigated the energy gap of the correlated antiferromagnetic insulator LaMnPO1-xFx (x=0.0 and 0.04) as a function of temperature and pressure, separately, in conjunction with many-body electronic structure calculations. These results show that the electronic structure in all measured regimes is well described by a model that includes both Mott-Hubbard interactions and Hund's rule coupling. Moreover, we find that by applying external pressure, thereby reducing the effective Mott-Hubbard interaction and Hund's coupling, the energy gap in LaMnPO1-xFx can be fully closed, yielding a metallic state.

UR - https://www.scopus.com/pages/publications/84978628988

U2 - 10.1103/PhysRevB.94.045115

DO - 10.1103/PhysRevB.94.045115

M3 - Article

SN - 2469-9950

VL - 94

JO - Physical Review B

JF - Physical Review B

IS - 4

M1 - 045115

ER -

Electronic correlations and pressure-induced metallicity in LaMnPO1-x Fx revealed via infrared spectroscopy

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