Magnetically modulated microwave absorption in twin boundaries of a high-temperature superconducting single crystal

1995 ◽  
Vol 8 (1) ◽  
pp. 89-97 ◽  
Author(s):  
J. Martinek ◽  
J. Stankowski
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Microwave Absorption ◽  
Twin Boundaries ◽  
High Temperature Superconducting

Controlled Growth of High-Temperature Superconducting Thin Films on Polycrystalline Substrates

MRS Bulletin ◽  
1992 ◽  
Vol 17 (8) ◽  
pp. 39-44 ◽  
Author(s):  
David T. Shaw
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Single Crystal ◽  
Technology Development ◽  
Magnetic Energy ◽  
High Quality ◽  
Practical Applications ◽  
High Temperature Superconducting ◽  
Controlled Processing ◽  
Crystal Films

Since their discovery in 1987, significant progress has been made in the fabrication of high-quality, high-temperature superconducting (HTS) thin films. Films with reproducible properties can be routinely deposited on single crystal substrates by several well-established processing techniques. Single crystal substrates, however, are not suitable for many applications because of their cost, limitations in size and shape, and lack of flexibility. Hence, a great deal of effort has been directed at the fabrication of thin films on polycrystalline rather than single crystal substrates. For example, metallic substrates are expected to be useful for the fabrication of HTS conductors for such applications as generators, motors, and superconducting magnetic energy storage (SMES) devices. For polycrystalline thin-film applications, lattice matching for epitaxial growth of thin films is no longer possible. Microstructures of these films are generally more complex than those of single crystal films, primarily because of grain boundaries. As a result, the microstructure of polycrystalline films must be carefully controlled to ensure that the critical current density is high enough for practical applications.Happily, progress in this respect has been substantial. There have been laboratory demonstrations of techniques for controlled processing of high-quality HTS thin films on polycrystalline substrates. Even though the technology development in this area is still in its infancy, many successful processing approaches have been developed to set the stage for the eventual use of HTS thin films in power device applications.

Atomically layered growth and properties of high temperature superconducting single-crystal films and superlattices

1992 ◽  
Vol 216 (1) ◽  
pp. 8-13 ◽  
Author(s):  
J.N. Eckstein ◽  
I. Bozovic ◽  
M. Klausmeier-Brown ◽  
G. Virshup ◽  
K.S. Ralls
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
High Temperature Superconducting ◽  
Single Crystal Films ◽  
Crystal Films ◽  
Layered Growth

Low-field microwave absorption in Gd2CuO4: similarity and contrast with high-temperature superconducting materials

1990 ◽  
Vol 170 (1-2) ◽  
pp. 41-45 ◽  
Author(s):  
M.D. Sastry ◽  
K.S. Ajayakumar ◽  
R.M. Kadam ◽  
G.M. Phatak ◽  
R.M. Iyer
Keyword(s):  
High Temperature ◽  
Microwave Absorption ◽  
Superconducting Materials ◽  
High Temperature Superconducting ◽  
Low Field

Infrared properties of single crystal MgO, a substrate for high temperature superconducting films

1990 ◽  
Vol 29 (3) ◽  
pp. 332 ◽  
Author(s):  
T. R. Yang ◽  
Sidney Perkowitz ◽  
G. L. Carr ◽  
R. C. Budhani ◽  
G. P. Williams ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Superconducting Films ◽  
High Temperature Superconducting
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