Multiband Quantum Criticality of Polar Metals

Pavel A. Volkov; Pavel A. Volkov; Premala Chandra; Premala Chandra

doi:https://doi.org/10.1103/PhysRevLett.124.237601

Multiband Quantum Criticality of Polar Metals

Pavel A. Volkov, Pavel A. Volkov, Premala Chandra, Premala Chandra

School of Arts and Sciences, Physics & Astronomy

Rutgers, The State University

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

2 Scopus citations

Abstract

Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings.

Original language	English (US)
Article number	237601
Journal	Physical review letters
Volume	124
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.124.237601
State	Published - Jun 12 2020

ASJC Scopus subject areas

Physics and Astronomy(all)

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https://doi.org/10.1103/PhysRevLett.124.237601

Cite this

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title = "Multiband Quantum Criticality of Polar Metals",

abstract = "Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings. ",

author = "Volkov, {Pavel A.} and Volkov, {Pavel A.} and Premala Chandra and Premala Chandra",

note = "Funding Information: We thank P. Coleman for detailed discussions, particularly in the early development of this project. We are grateful to P. W. Anderson, E. Christou, S. Fang, G. Jose, D. Khomskii, E. K{\"o}nig, Y. Komijani, D. Maslov, and B. Uchoa for their helpful comments. P. A. V. acknowledges a Postdoctoral Fellowship from the Rutgers University Center for Materials Theory, and this work was also supported by DOE-DE-SC0020353-125776 (P. C.) Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

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PY - 2020/6/12

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N2 - Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings.

AB - Motivated by recent experimental realizations of polar metals with broken inversion symmetry, we explore the emergence of strong correlations driven by criticality when the polar transition temperature is tuned to zero. Overcoming previously discussed challenges, we demonstrate a robust mechanism for coupling between the critical mode and electrons in multiband metals. We identify and characterize several novel interacting phases, including non-Fermi liquids, when band crossings are close to the Fermi level and present their experimental signatures for three generic types of band crossings.

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Multiband Quantum Criticality of Polar Metals

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