Structural and electrical properties of liquid phase epitaxially grown Y1Ba2Cu3Ox films

Chemical Modification of Precursor Solution for Long Length YBCO Coated Conductor Fabrication

“…Among them, metal-organic deposition using trifluoroacetates (MOD-TFA) is attracting more interest because of its potential for scale-up and cost-effectiveness. MOD-TFA is chemical solution deposition process which is intrinsically non-vacuum approach and YBCO thin films with relatively high J c (>1MA/cm 2 ) can be routinely fabricated by this process [4][5][6][7]. In order to obtain YBCO CC with high critical current, several requirements such as dense microstructure, clean grain boundary, fine precipitate for flux pinning, increasing thickness per coating, etc.…”

High-Jc GdBa2Cu3O7 thin films on SrTiO3 substrates by pulsed laser deposition

“…The reason for the J c decrease with thickness has been unclarified yet. In the literatures [5][6][7][8][9][10][11], however, several reasons have been suggested for J c decrease with thickness, including a transition from c-axis to a-axis orientation, a loss of in-plane and out-of-plane textures, a decrease in the number of pinning sites, and a change in the microstructure. From this viewpoint, it must be worthwhile to investigate J c dependency of film thickness for other LREBCO films.…”

A comparative study on liquid phase epitaxy initial stage of REBCO on MgO substrate

“…The major advantages of this technique over vapor deposition methods are a high growth rate and a non-vacuum process [1][2][3][4][5][6][7][8]. The LPE-grown films have a critical temperature of over 90 K [4] and a high supercurrent up to 10 6 A/mm 2 [1][2][3][4][5][6][7][8]. Additionally, LPE grown thick films have a high crystallinity and extremely flat surface [5].…”

“…In this LPE process, a single-crystalline MgO substrate is commonly used for the growth of REBCO thick films mainly due to its chemical stability with respect to the Ba-Cu-O (BCO) melts [3][4][5][6][7][8][9][10]. Because the epitaxial process directly occurs on the MgO substrate via a heterogeneous bonding REBCO/MgO, the initial stage of LPE growth of REBCO has several distinctive features, such as lattice misfit caused defects, predominant dissolution or growth and MgO melting-back phenomenon.…”