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Article: Non-fermi liquid at (2 + 1)D ferromagnetic quantum critical point
Title | Non-fermi liquid at (2 + 1)D ferromagnetic quantum critical point |
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Authors | |
Issue Date | 2017 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prx/ |
Citation | Physical Review X, 2017, v. 7 n. 3, article no. 031058 , p. 1-14 How to Cite? |
Abstract | We construct a two-dimensional lattice model of fermions coupled to Ising ferromagnetic critical fluctuations. Using extensive sign-problem-free quantum Monte Carlo simulations, we show that the model realizes a continuous itinerant quantum phase transition. In comparison with other similar itinerant quantum critical points (QCPs), our QCP shows a much weaker superconductivity tendency with no superconducting state down to the lowest temperature investigated, hence making the system a good platform for the exploration of quantum critical fluctuations. Remarkably, clear signatures of non-Fermi liquid behavior in the fermion propagators are observed at the QCP. The critical fluctuations at the QCP partially resemble Hertz-Millis-Moriya behavior. However, careful scaling analysis reveals that the QCP belongs to a different universality class, deviating from both ð2 þ 1ÞD Ising and Hertz-Millis-Moriya predictions. |
Persistent Identifier | http://hdl.handle.net/10722/268597 |
ISSN | 2022 Impact Factor: 12.5 2020 SCImago Journal Rankings: 7.940 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Xu, Xiao Yan | - |
dc.contributor.author | Sun, Kai | - |
dc.contributor.author | Schattner, Yoni | - |
dc.contributor.author | Berg, Erez | - |
dc.contributor.author | Meng, Zi Yang | - |
dc.date.accessioned | 2019-03-25T08:00:10Z | - |
dc.date.available | 2019-03-25T08:00:10Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Physical Review X, 2017, v. 7 n. 3, article no. 031058 , p. 1-14 | - |
dc.identifier.issn | 2160-3308 | - |
dc.identifier.uri | http://hdl.handle.net/10722/268597 | - |
dc.description.abstract | We construct a two-dimensional lattice model of fermions coupled to Ising ferromagnetic critical fluctuations. Using extensive sign-problem-free quantum Monte Carlo simulations, we show that the model realizes a continuous itinerant quantum phase transition. In comparison with other similar itinerant quantum critical points (QCPs), our QCP shows a much weaker superconductivity tendency with no superconducting state down to the lowest temperature investigated, hence making the system a good platform for the exploration of quantum critical fluctuations. Remarkably, clear signatures of non-Fermi liquid behavior in the fermion propagators are observed at the QCP. The critical fluctuations at the QCP partially resemble Hertz-Millis-Moriya behavior. However, careful scaling analysis reveals that the QCP belongs to a different universality class, deviating from both ð2 þ 1ÞD Ising and Hertz-Millis-Moriya predictions. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prx/ | - |
dc.relation.ispartof | Physical Review X | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Non-fermi liquid at (2 + 1)D ferromagnetic quantum critical point | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevX.7.031058 | - |
dc.identifier.scopus | eid_2-s2.0-85030726297 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | article no. 031058, p. 1 | - |
dc.identifier.epage | article no. 031058, p. 14 | - |
dc.identifier.isi | WOS:000411993100002 | - |
dc.identifier.issnl | 2160-3308 | - |