Zobrazeno 1 - 10
of 35
pro vyhledávání: '"G T Andrews"'
Publikováno v:
Materials Research Express, Vol 10, Iss 2, p 026001 (2023)
Brillouin light scattering spectroscopy was used to probe the room-temperature elasticity of crystalline high- T _c superconductor Bi _2 Sr _2 CaCu _2 O _8+ _δ . A complete set of best-estimate elastic constants was obtained using established relati
Externí odkaz:
https://doaj.org/article/ec423755665d408abac330f398677b00
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d22e326e43edd929a8bbc991eb12495f
https://doi.org/10.1103/physrevb.106.054113
https://doi.org/10.1103/physrevb.106.054113
Publikováno v:
Physical Review B. 106
We study the weak-coupling limit of the $t-t^\prime-U$ Hubbard model on a two-dimensional square lattice using a direct perturbative approach. Aided by symbolic computational tools, we compute the longitudinal density-density correlation functions in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1caae4fc274582a6d734e992b912a75
https://doi.org/10.1103/physrevb.106.035145
https://doi.org/10.1103/physrevb.106.035145
Publikováno v:
The Journal of the Acoustical Society of America. 152:A260-A260
An overview of the inelastic laser light scattering technique of Brillouin spectroscopy and its application to the study of hypersound in a diverse set of materials systems will be presented. In particular, results obtained from recent Brillouin scat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bed459c40c83cac2d740beece5d3a90f
https://doi.org/10.1121/10.0016202
https://doi.org/10.1121/10.0016202
Publikováno v:
Physical Review B. 104
We generate the perturbative expansion of the single particle Green's function and related self-energy for a half-filled single-band Hubbard model on a square lattice. We invoke algorithmic Matsubara integration to evaluate single-particle quantities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77ab928aaf90885c7d50dfcc6d4e5379
https://doi.org/10.1103/physrevb.104.125114
https://doi.org/10.1103/physrevb.104.125114
Room-temperature optical constants of crystalline Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ were determined using data extracted from Brillouin light scattering spectra. Optical extinction coefficient-to-refractive index ratios at a wavelength of 532 nm wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68a19e75839d31c0f2ebaa3ac38cd4ec
http://arxiv.org/abs/2010.05938
http://arxiv.org/abs/2010.05938
Autor:
L. C. Parsons, G. T. Andrews
Publikováno v:
AIP Advances, Vol 2, Iss 3, Pp 032157-032157-12 (2012)
Pseudo-reflection geometry Brillouin spectroscopy can be used to probe acoustic wave dispersion approximately along the surface normal of a material system while avoiding the difficulties associated with specularly reflected light encountered in an i
Externí odkaz:
https://doaj.org/article/d22aeab5daec41809c8a36d9acd1462a
Autor:
G. T. Andrews, Jordan Peckham
Publikováno v:
Bio-Medical Materials and Engineering. 25:111-116
The biodegradability of oxidized microporous, mesoporous and macroporous silicon films in a simulated body fluid with ion concentrations similar to those found in human blood plasma were studied using gravimetry. Film dissolution rates were determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7ec3c93320c0deaf181d3f8fc2ae97
https://doi.org/10.3233/bme-141240
https://doi.org/10.3233/bme-141240
Publikováno v:
American Journal of Physics. 79:1079-1082
This paper describes a laboratory experiment designed to measure thickness variations across a soap bubble. The experiment uses the phenomenon of thin film interference and the principles of color perception to measure the thickness of the soap film
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3610513f8b560bd059e915c693b5ed84
https://doi.org/10.1119/1.3596431
https://doi.org/10.1119/1.3596431
Publikováno v:
Materials Science Forum. :745-748
Brillouin light scattering spectroscopy was used to probe porous silicon carbide films formed from p-type 6H crystalline silicon carbide. The porosities of the films ranged from 30% to 58%. Surface and bulk acoustic wave velocities were measured and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9454b0993c50a3bf9ad349f6b924080
https://doi.org/10.4028/www.scientific.net/msf.556-557.745
https://doi.org/10.4028/www.scientific.net/msf.556-557.745