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Title: Local-noise spectroscopy for nonequilibrium systems

Journal Article · · Physical Review B
 [1];  [2]; ORCiD logo [1]
  1. Univ. of California, San Diego, CA (United States). Dept. of Chemistry & Biochemistry
  2. Univ. of California, San Diego, CA (United States). Dept. of Physics

Here, we introduce the notion, and develop the theory of, local-noise spectroscopy (LNS)—a tool to study the properties of systems far from equilibrium by means of flux density correlations. As a test bed, we apply it to biased molecular junctions. This tool naturally extends those based on local fluxes, while providing complementary information on the system. As examples of the rich phenomenology that one can study with this approach, we show that LNS can be used to yield information on microscopic properties of bias-induced light emission in junctions, provide local resolution of intrasystem interactions, and employed as a nanothermometry tool. Although LNS may, at the moment, be difficult to realize experimentally, it can nonetheless be used as a powerful theoretical tool to infer a wide range of physical properties on a variety of systems of present interest.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0018201
OSTI ID:
1507143
Alternate ID(s):
OSTI ID: 1489073
Journal Information:
Physical Review B, Vol. 98, Issue 23; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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