Scaling universality at the dynamic vortex Mott transition
Journal Article
·
· Physical Review B
- Univ. of Twente, Enschede (Netherlands). MESA+ Inst. for Nanotechnology
- Harvard Univ., Cambridge, MA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States)
- Tata Inst. of Fundamental Research, Mumbai (India)
- Univ. of Twente, Enschede (Netherlands). MESA+ Inst. for Nanotechnology; Moscow Inst. of Physics and Technology (MIPT), Moscow (Russian Federation)
- Argonne National Lab. (ANL), Argonne, IL (United States); Tata Inst. of Fundamental Research, Mumbai (India)
- Argonne National Lab. (ANL), Argonne, IL (United States); Novosibirsk State Univ. (Russian Federation); Univ. Autonoma de Madrid (Spain); A. V. Rzhanov Inst. of Semiconductor Physics, Novosibirsk (Russian Federation)
- Argonne National Lab. (ANL), Argonne, IL (United States)
The cleanest way to observe a dynamic Mott insulator-to-metal transition (DMT) without the interference from disorder and other effects inherent to electronic and atomic systems, is to employ the vortex Mott states formed by superconducting vortices in a regular array of pinning sites. Here, we report the critical behavior of the vortex system as it crosses the DMT line, driven by either current or temperature. We find universal scaling with respect to both, expressed by the same scaling function and characterized by a single critical exponent coinciding with the exponent for the thermodynamic Mott transition. We develop a theory for the DMT based on the parity reflection-time reversal (PT) symmetry breaking formalism and find that the nonequilibrium-induced Mott transition has the same critical behavior as the thermal Mott transition. Our findings demonstrate the existence of physical systems in which the effect of a nonequilibrium drive is to generate an effective temperature and hence the transition belonging in the thermal universality class.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Russian Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1425288
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 2 Vol. 97; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | September 2019 |
Proximity coupling of superconducting nanograins with fractal distributions
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journal | January 2020 |
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