Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Barry I. Barker"'
Autor:
Lawrence W. Hrubesh, Young S. Lee, Lidiya Polukhina, J. F. Poco, Barry I. Barker, Douglas D. Osheroff
Publikováno v:
Physical Review Letters. 85:2148-2151
New NMR studies of 3He in high-porosity aerogel reveal a phase transition from an A-like to a B-like phase on cooling. The evidence includes frequency shift and magnetic susceptibility data, and similar behavior is found in two quite different aeroge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93d806a1e4dbe2aa5082c3dd34d50b59
https://doi.org/10.1103/physrevlett.85.2148
https://doi.org/10.1103/physrevlett.85.2148
Publikováno v:
Journal of Low Temperature Physics. 113:635-644
We report continuous-wave NMR measurements on superfluid 3 He contained inside high porosity aerogel at 3.24 MPa, in a 28.4 mT magnetic field, and down to 0.9 mK. Three different purities of 3 He were used: pure 3 He, 3 He with enough 4 He to replace
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6020020528f95bf178ee98c0972f74
https://doi.org/10.1023/a:1022534124285
https://doi.org/10.1023/a:1022534124285
Publikováno v:
American Journal of Physics. 59:1038-1042
Polynomial expansions are used to approximate the equations of the eigenvalues of the Schrodinger equation for a finite square potential well. The technique results in discrete, approximate eigenvalues which, it is shown, are identical to the corresp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f08cb8cc420ded5a5d74a16c5075385
https://doi.org/10.1119/1.16644
https://doi.org/10.1119/1.16644
Publikováno v:
Czechoslovak Journal of Physics. 46:405-406
Thin films of solid3He are excellent examples of two-dimensional magnetic systems. The first atomic layer is a paramagnet at coverages where the second solid layer exhibits either ferromagnetic or antiferromagnetic behavior, depending on the coverage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27443efd55673b56f8e808e80aeaee08
https://doi.org/10.1007/bf02569618
https://doi.org/10.1007/bf02569618
Publikováno v:
Czechoslovak Journal of Physics. 46:163-164
We have studied the first order A-B phase transition in superfluid3He in ‘rough’ surface morphologies. Surfaces which present a small radius of curvature to the supercooled A-phase decrease the barrier to B-phase nucleation. Preliminary data indi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce06cce15f3eed881813ad2ab4ea306b
https://doi.org/10.1007/bf02569497
https://doi.org/10.1007/bf02569497
Publikováno v:
The Journal of the Acoustical Society of America. 88:S58-S58
Previous investigators have recognized that an approximation may be made to the eigenfunctions and eigenvalues for a Pekeris waveguide such that the eigenfuncfions end in a node at an effective pressure release bottom below the actual bottom. A simpl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6ea83d105eeaa3c4cfff8a88f953e37
https://doi.org/10.1121/1.2029070
https://doi.org/10.1121/1.2029070
Autor:
Grayson H. Rayborn, Juliette W. Ioup, Richard R. Slater, George E. Ioup, Barry I. Barker, James A. Showalter, James K. Fulford
Publikováno v:
The Journal of the Acoustical Society of America. 88:S109-S109
A ray‐tracing algorithm was used to model the bottom reverberation for a Pekeris waveguide with a variety of marine bottoms including sands, silts, and clays. Monostatic and quasimonostatic cases were studied. Effects of attenuation in the bottom w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7405d242cee1dd3f7442a3dd8a1f032
https://doi.org/10.1121/1.2028505
https://doi.org/10.1121/1.2028505