High-Critical-Temperature Sm- and Nd-Based Superconductors Produced by Metal Organic Deposition Using Trifluoroacetates and Pentafluoropropionates

Abstract

As a step toward clarification of the power of supersymmetry (SUSY) in matrix theory, a complete calculation, including all the spin effects, is performed of the effective action of a probe D-particle, moving along an arbitrary trajectory in interaction with a large number of coincident source D-particles, at oneloop at order four in the derivative expansion. Furthermore, exploiting the SUSY Ward identity developed previously, the quantum-corrected effective supersymmetry transformation laws are obtained explicitly to the relevant order and are used to verify the SUSY-invariance of the effective action. Assuming that the agreement with 11-dimensional supergravity persists, our result can be regarded as a prediction for the supergravity calculation, which, as yet unavailable, is known to be highly non-trivial.

Clustered atom-replaced structure in single-crystal-like metal oxide

“…Intensities of the YBCO(00n) exhibit a tendency, namely, the intensity of YBCO(001) is generally weaker than that of YBCO(002). On the other hand, the peak intensity of SmBCO(002) is much stronger than that of SmBCO(001) [10]. LuBCO exhibits the same tendency as SmBCO.…”

Atom-replaced pins in a Y-based superconductor—single-crystalline perovskite structure including both PrBa2Cu3O7−xand YBa2Cu3O7−y

“…However, TFA-MOD could provide the coexistent structure. Although the detail of the reason is obscure, the optimal p(O 2 ) seems to be the average value in TFA-MOD [23]. In this study, we fixed the p(O 2 ) at 1000 ppm.…”

“…The carbon content remains as CO x in Cu-O superconducting planes [22]. If a heavier perfluorocarboxylic acid (such as pentafluoropropionic acid or heptafluorobutyric acid) is used [23], the esterification is usually suppressed in the case of Sm and Nd. In the case of Pr salts, however, it cannot be suppressed.…”