Zobrazeno 1 - 10
of 377
pro vyhledávání: '"Lockman Z"'
Polycrystalline MgB2 samples with GaN additions were prepared by reaction of Mg, B, and GaN powders. The presence of Ga leads to a low melting eutectic phase which allowed liquid phase sintering and produces plate-like grains. For low-level GaN addit
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504793
Autor:
Bugoslavsky, Y., Cowey, L., Tate, T. J., Perkins, G. K., Moore, J., Lockman, Z., Berenov, A., MacManus-Driscoll, J. L., Caplin, A. D., Cohen, L. F., Zhai, H Y, Christen, H M, Paranthaman, M P, Lowndes, D H, Jo, M H, Blamire, M G
We discuss pinning properties of MgB2 thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The E
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207080
Autor:
Bugoslavsky, Y., Miyoshi, Y., Perkins, G. K., Berenov, A. V., Lockman, Z., MacManus-Driscoll, J. L., Cohen, L. F., Caplin, A. D., Zhai, H. Y., Paranthaman, M. P., Christen, H. M., Blamire, M.
We have studied the structure of the superconducting gap in MgB2 thin films by means of point-contact spectroscopy using a gold tip. The films were produced by depositing pure boron on a sapphire substrate, using e-beam evaporation, followed by react
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110296
Autor:
Zhukov, A. A., Purnell, A., Miyoshi, Y., Bugoslavsky, Y., Lockman, Z., Berenov, A., MacManus-Driscoll, J. L., Cohen, L. F., Zhai, H. Y., Christen, H. M., Paranthaman, M. P., Lowndes, D. H., Jo, M. H., Blamire, M. G., Hao, Ling, Gallop, J. C.
The microwave power, dc magnetic field, frequency and temperature dependence of the surface resistance of MgB2 films and powder samples were studied. Sample quality is relatively easy to identify by a number of characteristics, the most clear being t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109397
Autor:
Berenov, A., Lockman, Z., Qi, X., Bugoslavsky, Y., Cohen, L. F., Jo, M. -H., Stelmashenko, N. A., Tsaneva, V. N., Kambara, M., Babu, N. Hari, Cardwell, D. A., Blamire, M. G., MacManus-Driscoll, J. L.
MgB2 thin films were cold-grown on sapphire substrates by pulsed laser deposition (PLD), followed by post-annealing in mixed, reducing gas, Mg-rich, Zr gettered, environments. The films had Tcs in the range 29 K to 34 K, Jcs (20K, H=0) in the range 3
Externí odkaz:
http://arxiv.org/abs/cond-mat/0106278
Publikováno v:
Microelectronics International: An International Journal, 2011, Vol. 28, Issue 3, pp. 7-11.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/13565361111162567
Publikováno v:
In Thin Solid Films 2011 519(15):5139-5145
Publikováno v:
In Journal of Crystal Growth 2011 326(1):2-8
Publikováno v:
In Journal of Alloys and Compounds 2010 497(1):195-200
Autor:
Cheong, K.Y., Lockman, Z.
Publikováno v:
In Journal of Alloys and Compounds 2009 481(1):345-348