Zobrazeno 1 - 10
of 348
pro vyhledávání: '"Metcalf, T."'
Autor:
Jacks, H. C., Molina-Ruiz, M., Weber, M. H., Maldonis, J. J., Voyles, P. M., Metcalf, T. H., Liu, X., Hellman, F.
Amorphous silicon films prepared by electron beam evaporation have systematically and substantially greater atomic density for higher thickness, higher growth temperature, and slower deposition rate, reaching the density of crystalline Si when films
Externí odkaz:
http://arxiv.org/abs/2111.10914
Publikováno v:
Phys. Rev. B 104, 024204 (2021)
Specific heat measurements of hydrogenated amorphous silicon prepared by hot-wire chemical vapor deposition show a large density of two-level systems at low temperature. Annealing at 200 {\deg}C, well below the growth temperature, does not significan
Externí odkaz:
http://arxiv.org/abs/2105.02513
Autor:
Molina-Ruiz, M., Rosen, Y. J., Jacks, H. C., Abernathy, M. R., Metcalf, T. H., Liu, X., Dubois, J. L, Hellman, F.
Publikováno v:
Phys. Rev. Materials 5, 035601 (2021)
Amorphous silicon contains tunneling two-level systems, which are the dominant energy loss mechanisms for amorphous solids at low temperatures. These two-level systems affect both mechanical and electromagnetic oscillators and are believed to produce
Externí odkaz:
http://arxiv.org/abs/2008.07489
Autor:
McRae, C. R. H., Lake, R. E., Long, J. L., Bal, M., Wu, X., Jugdersuren, B., Metcalf, T. H., Liu, X., Pappas, D. P.
The investigation of two-level-state (TLS) loss in dielectric materials and interfaces remains at the forefront of materials research in superconducting quantum circuits. We demonstrate a method of TLS loss extraction of a thin film dielectric by mea
Externí odkaz:
http://arxiv.org/abs/1909.07428
In $e$-beam evaporated amorphous silicon ($a$-Si), the densities of two-level systems (TLS), $n_{0}$ and $\overline{P}$, determined from specific heat $C$ and internal friction $Q^{-1}$ measurements, respectively, have been shown to vary by over thre
Externí odkaz:
http://arxiv.org/abs/1506.04284
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Akademický článek
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The solar magnetic field is key to understanding the physical processes in the solar atmosphere. Nonlinear force-free codes have been shown to be useful in extrapolating the coronal field from underlying vector boundary data [see Schrijver et al. 200
Externí odkaz:
http://arxiv.org/abs/0801.2884
Publikováno v:
Bibliographic Code: 2008SoPh..247..249W
The solar magnetic field is key to understanding the physical processes in the solar atmosphere. Nonlinear force-free codes have been shown to be useful in extrapolating the coronal field upward from underlying vector boundary data. However, we can o
Externí odkaz:
http://arxiv.org/abs/0801.2707
Autor:
Schrijver, C. J., DeRosa, M. L., Metcalf, T., Barnes, G., Lites, B., Tarbell, T., McTiernan, J., Valori, G., Wiegelmann, T., Wheatland, M. S., Amari, T., Aulanier, G., Demoulin, P., Fuhrmann, M., Kusano, K., Regnier, S., Thalmann, J. K.
Solar flares and coronal mass ejections are associated with rapid changes in field connectivity and powered by the partial dissipation of electrical currents in the solar atmosphere. A critical unanswered question is whether the currents involved are
Externí odkaz:
http://arxiv.org/abs/0712.0023