Direct measurement of Kramers turnover with a levitated nanoparticle.
Sign Up to like & getrecommendations! Published in 2017 at "Nature nanotechnology"
DOI: 10.1038/nnano.2017.198
Abstract: Understanding the thermally activated escape from a metastable state is at the heart of important phenomena such as the folding dynamics of proteins, the kinetics of chemical reactions or the stability of mechanical systems. In… read more here.
Keywords: direct measurement; kramers turnover; measurement kramers; turnover levitated ... See more keywords
Temperature-free Mass Tracking of a Levitated Nanoparticle
Sign Up to like & getrecommendations! Published in 2023 at "Chinese Physics B"
DOI: 10.1088/1674-1056/accb4c
Abstract: Mass measurement is an essential analytical tool in the characterization of materials. Here we present a method for measuring the mass of an individual nanoparticle, which has a fg-level mass. This method enables a temperature-independent… read more here.
Keywords: levitated nanoparticle; free mass; mass tracking; tracking levitated ... See more keywords
Kovacs Memory Effect with an Optically Levitated Nanoparticle.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.130603
Abstract: The understanding of the dynamics of nonequilibrium cooling and heating processes at the nanoscale is still an open problem. These processes can follow surprising relaxation paths due to, e.g., memory effects, which significantly alter the… read more here.
Keywords: kovacs effect; kovacs memory; memory effect; effect ... See more keywords