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pro vyhledávání: '"Geng, Zhuoran"'
Autor:
Geng, Zhuoran, Maasilta, Ilari J.
In contradictin to the common concept that acoustic phonons can only travel inside a material medium, they can in fact "tunnel" across a vacuum gap with the help of piezoelectricity, transmitting a significantly stronger heat flux than that of blackb
Externí odkaz:
http://arxiv.org/abs/2303.05084
Autor:
Geng, Zhuoran, Hijano, Alberto, Ilic, Stefan, Ilyn, Maxim, Maasilta, Ilari J., Monfardini, Alessandro, Spies, Maria, Strambini, Elia, Virtanen, Pauli, Calvo, Martino, Gonzalez-Orellana, Carmen, Helenius, Ari P., Khorshidian, Sara, de Araujo, Clodoaldo I. L., Levy-Bertrand, Florence, Rogero, Celia, Giazotto, Francesco, Bergeret, F. Sebastián, Heikkilä, Tero T.
We review the use of hybrid thin films composed of superconductors and ferromagnets for creating non-reciprocal electronic components and self-biased detectors of electromagnetic radiation. We begin by introducing the theory behind these effects, as
Externí odkaz:
http://arxiv.org/abs/2302.12732
Autor:
Geng, Zhuoran, Maasilta, Ilari J.
Publikováno v:
Commun Phys 6, 178 (2023)
When two piezoelectric solids are placed in close proximity, acoustic waves (phonons) can "tunnel" across a vacuum gap transmitting energy between the two solids. Here, we demonstrate analytically that not only is such a phenomenon possible, but that
Externí odkaz:
http://arxiv.org/abs/2209.08287
Autor:
Geng, Zhuoran, Maasilta, Ilari J.
The superconductor-ferromagnet thermoelectric detector (SFTED) is a novel ultrasensitive radiation detector based on the giant thermoelectric effect in superconductorferromagnet tunnel junctions. We demonstrate analytical models and solutions in the
Externí odkaz:
http://arxiv.org/abs/2206.02513
Autor:
Geng, Zhuoran, Maasilta, Ilari J.
It is not widely appreciated that an acoustic wave can "jump" or "tunnel" across a vacuum gap between two piezoelectric solids, nor has the general case been formulated or studied in detail. Here, we remedy that situation, by presenting a general for
Externí odkaz:
http://arxiv.org/abs/2205.07472
Superconductor-ferromagnet thermoelectric detector (SFTED) is a novel ultrasensitive radiation detector based on the giant thermoelectric effect in superconductor-ferromagnet tunnel junctions. This type of detector can be operated without the need of
Externí odkaz:
http://arxiv.org/abs/1908.04097
Publikováno v:
Phys. Rev. Applied 12, 014008 (2019)
Periodic hole array phononic crystals (PnC) can strongly modify the phonon dispersion relations, and have been shown to influence thermal conductance coherently, especially at low temperatures where scattering is suppressed. One very important parame
Externí odkaz:
http://arxiv.org/abs/1904.09102
Autor:
Geng, Zhuoran1 (AUTHOR) zhgeng@jyu.fi, Maasilta, Ilari J.1 (AUTHOR) maasilta@jyu.fi
Publikováno v:
Communications Physics. 7/14/2023, Vol. 6 Issue 1, p1-7. 7p.
Akademický článek
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Publikováno v:
Advanced Engineering Materials; Feb2020, Vol. 22 Issue 2, p1-9, 9p