Vinokur, Valerii M. and Baturina, Tatyana I. and Fistul, Mikhail V. and Mironov, Aleksey Yu. and Baklanov, Mikhail R. and Strunk, Christoph (2008) Superinsulator and quantum synchronization. NATURE, 452 (7187). 613-U5. ISSN 0028-0836,
Full text not available from this repository. (Request a copy)Abstract
Synchronized oscillators are ubiquitous in nature(1), and synchronization plays a key part in various classical and quantum phenomena. Several experiments(2-4) have shown that in thin superconducting films, disorder enforces the droplet- like electronic texture - superconducting islands immersed into a normal matrix - and that tuning disorder drives the system from superconducting to insulating behaviour. In the vicinity of the transition, a distinct state(4) forms: a Cooper- pair insulator, with thermally activated conductivity. It results from synchronization of the phase of the superconducting order parameter at the islands across the whole system(5). Here we show that at a certain finite temperature, a Cooper- pair insulator undergoes a transition to a superinsulating state with infinite resistance. We present experimental evidence of this transition in titanium nitride films and show that the superinsulating state is dual to the superconducting state: it is destroyed by a sufficiently strong critical magnetic field, and breaks down at some critical voltage that is analogous to the critical current in superconductors.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TUNNEL-JUNCTIONS; ARRAYS; CHARGE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Nov 2020 09:57 |
| Last Modified: | 04 Nov 2020 09:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31059 |
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