Zobrazeno 1 - 10
of 29
pro vyhledávání: '"R.F. Wiegert"'
Autor:
M. Levy, R.F. Wiegert
Publikováno v:
IEEE Transactions on Magnetics. 37:2708-2711
The magnetic field dependencies of 600 MHz magnetoelastic Rayleigh-mode surface acoustic wave (SAW) attenuation and dc magnetoresistance of Ni thin films were measured as a function of temperature and correlated with variations of the samples' anisot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0392c6fca2f6854c5b29673bac4dec8e
https://doi.org/10.1109/20.951282
https://doi.org/10.1109/20.951282
Autor:
J.W. Purpura, R.F. Wiegert
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:2549-2552
We have measured the magnetic hysteresis of a YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin-film magnetometer test sample at 77 K for applied magnetic field ramp amplitudes up to 1 mT. The test sample was designed with two distinct SQUID magnetometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86210413b571f8316f3daae37b07be56
https://doi.org/10.1109/77.621759
https://doi.org/10.1109/77.621759
Autor:
James R. Rozen, R.F. Wiegert, D.K. Lathrop, M.C. Froelich, Roger H. Koch, J.W. Purpura, J.M. Schmidt, T.R. Clem, J.H. Eraker, D.J. Ovenvay
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:3287-3293
During the 1980s a SQUID-based superconducting gradiometer prototype utilizing bulk niobium and wire superconducting components cooled by liquid helium was developed by the US Navy. This sensor was successfully utilized in demonstrations for sea mine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05792b1fb3d34315ab325ce27533ce7f
https://doi.org/10.1109/77.622056
https://doi.org/10.1109/77.622056
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:1848-1852
Experimental measurements of the nonlinear response of superconducting thin-film gradiometer sense loops to changes in magnetic field at 4.2 K are described. The sense loops were fabricated from niobium and niobium nitride. The basic experiment invol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3be0bd4cd9700b1291ab5d40479043c
https://doi.org/10.1109/77.233321
https://doi.org/10.1109/77.233321
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:2445-2449
Measurements of nonlinear response in Tl/sub 2/CaBa/sub 2/Cu/sub 2/O/sub 8+y/ and YBa/sub 2/Cu/sub 3/O/sub 7-x/ thin-film magnetometer sense loops were performed at 4.2 K. The thallium-based films were deposited by laser ablation onto lanthanum alumi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63f1771e359eebc45a7adab22ec50d16
https://doi.org/10.1109/77.233950
https://doi.org/10.1109/77.233950
Publikováno v:
IEEE 1988 Ultrasonics Symposium Proceedings..
The authors derive an expression for the change in SAW (surface acoustic wave) velocity as a function of in-plane magnetic field for thin magnetostrictive films, which compares well with the data for thin Ni films. The proposed dynamic model is based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59bf68fb86db2dcaab11cdc939862c3
https://doi.org/10.1109/ultsym.1988.49389
https://doi.org/10.1109/ultsym.1988.49389
Autor:
M. Levy, R.F. Wiegert
Publikováno v:
IEEE 1988 Ultrasonics Symposium Proceedings..
The authors report on the magnetic field (H) dependence of attenuation alpha (H) of 618-MHz SAW (surface acoustic waves) propagating in vacuum-evaporated multilayer Ni-Cu-Ni thin-film samples. Experimental results indicate that the magnetoelastic alp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cd27abe24e0bf4ac56d0fb0c14b1192
https://doi.org/10.1109/ultsym.1988.49390
https://doi.org/10.1109/ultsym.1988.49390
The onset of nonlinear response to applied magnetic field in GdBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin film magnetometer sense loops was measured in equipment performing at 77 K. As the magnetic field applied to the magnetometers was ramped, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d2e05bcbf7738e6f616acfeafed615a
https://zenodo.org/record/1262514
https://zenodo.org/record/1262514
Publikováno v:
IEEE 1986 Ultrasonics Symposium.
The phenomenon of magnetic field dependent, high frequency (~600 MHz) surface acoustic wave (SAW) attenuation in evaporated thin films of Ni and KiFe alloys with negative magnetoelastic coupling constants has been previously reported. In this paper w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10f220b12f8d7d24e74fa2f7f5b13549
https://doi.org/10.1109/ultsym.1986.198908
https://doi.org/10.1109/ultsym.1986.198908
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