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Article: Itinerant quantum critical point with frustration and a non-Fermi liquid

TitleItinerant quantum critical point with frustration and a non-Fermi liquid
Authors
Issue Date2018
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/
Citation
Physical Review B: covering condensed matter and materials physics, 2018, v. 98 n. 4, article no. 045116 How to Cite?
Abstract© 2018 American Physical Society. Employing the self-learning quantum Monte Carlo algorithm, we investigate the frustrated transverse-field triangle-lattice Ising model coupled to a Fermi surface. Without fermions, the spin degrees of freedom undergo a second-order quantum phase transition between paramagnetic and clock-ordered phases. This quantum critical point (QCP) has an emergent U(1) symmetry and thus belongs to the (2+1)D XY universality class. In the presence of fermions, spin fluctuations introduce effective interactions among fermions and distort the bare Fermi surface towards an interacting one with hot spots and Fermi pockets. Near the QCP, non-Fermi-liquid behaviors are observed at the hot spots, and the QCP is rendered into a different universality with Hertz-Millis-type exponents. The detailed properties of this QCP and possibly related experimental systems are also discussed.
Persistent Identifierhttp://hdl.handle.net/10722/268601
ISSN
2023 Impact Factor: 3.2
2023 SCImago Journal Rankings: 1.345
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Zi Hong-
dc.contributor.authorXu, Xiao Yan-
dc.contributor.authorQi, Yang-
dc.contributor.authorSun, Kai-
dc.contributor.authorMeng, Zi Yang-
dc.date.accessioned2019-03-25T08:00:10Z-
dc.date.available2019-03-25T08:00:10Z-
dc.date.issued2018-
dc.identifier.citationPhysical Review B: covering condensed matter and materials physics, 2018, v. 98 n. 4, article no. 045116-
dc.identifier.issn2469-9950-
dc.identifier.urihttp://hdl.handle.net/10722/268601-
dc.description.abstract© 2018 American Physical Society. Employing the self-learning quantum Monte Carlo algorithm, we investigate the frustrated transverse-field triangle-lattice Ising model coupled to a Fermi surface. Without fermions, the spin degrees of freedom undergo a second-order quantum phase transition between paramagnetic and clock-ordered phases. This quantum critical point (QCP) has an emergent U(1) symmetry and thus belongs to the (2+1)D XY universality class. In the presence of fermions, spin fluctuations introduce effective interactions among fermions and distort the bare Fermi surface towards an interacting one with hot spots and Fermi pockets. Near the QCP, non-Fermi-liquid behaviors are observed at the hot spots, and the QCP is rendered into a different universality with Hertz-Millis-type exponents. The detailed properties of this QCP and possibly related experimental systems are also discussed.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/-
dc.relation.ispartofPhysical Review B: covering condensed matter and materials physics-
dc.titleItinerant quantum critical point with frustration and a non-Fermi liquid-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevB.98.045116-
dc.identifier.scopuseid_2-s2.0-85050476081-
dc.identifier.hkuros306474-
dc.identifier.volume98-
dc.identifier.issue4-
dc.identifier.spagearticle no. 045116-
dc.identifier.epagearticle no. 045116-
dc.identifier.eissn2469-9969-
dc.identifier.isiWOS:000438348200001-
dc.identifier.issnl2469-9950-

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