Zobrazeno 1 - 10
of 25
pro vyhledávání: '"A. J. Drehman"'
Autor:
Igor F. Vasconcelos, Lisandro Pavie Cardoso, E. N. Silva, J. W. Stewart, A. J. Drehman, J. Derov, Pierre Basílio Almeida Fechine, A.S. de Menezes, Alejandro Ayala, Antonio Sergio Bezerra Sombra
Publikováno v:
Journal of Physics and Chemistry of Solids. 70:202-209
Y 3 Fe 5 O 12 (YIG) crystal has many attractive characteristics, such as low dielectric loss, narrow resonance linewidth in microwave region and also possesses a good saturated magnetization value. Composite technology in general sets out to combine
Autor:
J. W. Stewart, R. C. S. Costa, A. J. Drehman, Pierre Basílio Almeida Fechine, R. S. T. Moretzsohn, Cynthia Junqueira, J. Derov, Antonio Sergio Bezerra Sombra
Publikováno v:
Microwave and Optical Technology Letters. 50:2852-2857
The main objective of this work was to study the magnetic and dielectric properties of Y3Fe5O12 and Gd3Fe5O12 garnets resonator antennas obtained from a new procedure in the solid state ceramic technique. These ferrite resonator antennas (FRAs) had t
Autor:
Yalin Lu, Jing Zhao, Sa Wang, Christine Hsu, A. J. Drehman, Pearl Yip, Mark Cronin-Golomb, Brad D. Gaynor, Guanghai Jin, Feiling Wang
Publikováno v:
Applied Physics Letters. 74:3038-3040
The structural and quadratic electro-optic properties in lead magnesium niobate titanate thin films have been systematically studied as a function of the fraction x of lead titanate. (110)-oriented, pyrochlore-free PMN–PT films with PT contents aro
Autor:
P. J. Rainville, M. S. Dresselhaus, J. S. Derov, G. Dresselhaus, A. J. Drehman, J. Steinbeck, C. C. Chin
Publikováno v:
Journal of Materials Research. 5:1599-1604
We report on the magnetic-field dependent surface resistance of polycrystalline YBa2Cu3O7 (Tc ≃ 92 K), measured using a brass cylindrical cavity resonator, operating at 16.5 GHz in the TE011 mode. A de magnetic field Happ is applied parallel to the
Publikováno v:
Journal of Materials Research. 5:1392-1396
The surface morphology and near-surface chemical composition of high temperature superconducting Y–Ba–Cu–O thin films have been studied by Scanning Electron Microscopy (SEM) and Auger Electron Spectroscopy (AES) depth profiling. These films wer
Publikováno v:
Journal of Applied Physics. 67:7460-7466
The structural properties of a high‐temeprature superconducting textured YBa2Cu3O7−x thin film on a SrTiO3(100) substrate have been studied by reflection x‐ray pole‐figure methods, which can elucidate the degree of preferred orientations of t
Autor:
Mark Cronin-Golomb, S.-W. Liu, H. Jiang, Yalin Lu, A. J. Drehman, Jing Zhao, Guanghai Jin, Feiling Wang, Sa Wang
Publikováno v:
Applied Physics Letters. 72:2927-2929
Highly (110)-oriented and (100) nearly epitaxial 0.7PMN-0.3PT thin films were deposited on (1012) sapphire and (100) LaAlO3 substrates, respectively, using a dip-coating method. Optical waveguide characterization and electro-optic effect measurements
Autor:
R. Kolluru, Markus E. Testorf, Jehad Khoury, Dana Pyburn, Charles L. Woods, William D. Goodhue, Sandip K. Sengupta, Alvin J. Drehman, R. Leon, J. Kierstead, Bahareh Haji-saeed
Publikováno v:
Applied optics. 45(14)
The fabrication and characterization of an optically addressable deformable mirror for a spatial light modulator are described. Device operation utilizes an electrostatically driven pixelated aluminized polymeric membrane mirror supported above an op
Publikováno v:
Applied Physics Letters. 65:3132-3134
High quality YBa2Cu3Ox superconducting films have been deposited by laser deposition on yttrium stabilized cubic zirconia (YSZ) substrates using a partial pressure of air instead of oxygen. The Tc of these films was over 2° higher than films made in
Autor:
A. J. Drehman, M. W. Dumais
Publikováno v:
Journal of Materials Research. 5:677-679
Y-Ba-Cu-O films were made by R-F diode sputtering using a single oxide target. It was found that if a small negative bias is applied to the substrate, the etching associated with reactive sputtering is significantly reduced. This results in better co