Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – Josephson junction – per se or josephson junction with only...
Reexamination Certificate
2009-04-22
2011-11-08
Hendrickson, Stuart (Department: 1736)
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
Josephson junction, per se or josephson junction with only...
C505S329000, C505S237000, C505S238000, C505S702000, C505S817000, C257S031000, C257S032000, C257S033000, C257SE39014, C428S704000, C428S930000, C427S062000
Reexamination Certificate
active
08055318
ABSTRACT:
A new family of superconducting materials with critical temperature up to 55 K have recently been discovered, comprising a crystal structure with atomic layers of iron and arsenic alternating with atomic layers of rare-earth oxide or alkaline earth. The present invention identifies structures for integrated circuit elements (including Josephson junctions) in these and related materials. These superconducting circuit elements will operate at a higher temperature than low-temperature superconductors such as niobium, and may be easier to manufacture than prior-art high-temperature superconductors based on copper-oxides.
REFERENCES:
patent: 5468973 (1995-11-01), Harada et al.
patent: 5885937 (1999-03-01), Adachi et al.
patent: 6066600 (2000-05-01), Chan
patent: 6375761 (2002-04-01), Gambino et al.
patent: 2007-320829 (2007-12-01), None
Yamamoto et al, “Evidence of two distinct scales of current flow in polycrystalline Sm and Nd iron oxypnictides,” Superconduct. Sci. Technol, 2008, V21, 095008 (11pp).
Narduzzo et al, “Uppercritical field, penetration depth, and depinning frequency of the high temperature superconductor LaFeAsO0.9F0.1 studied by microwave surface impedance,” Physical Review B, 2008,V 78, 012507.
Y. Kamihara, et al., “Iron-Based Layered Superconductor La[O1-xFx]FeAs (x=0.05-0.12) with Tc=26 K”, Communications of the American Chemical Society, vol. 130, pp. 3296-3297 (2008).
Z. Ren, et al., “Novel Superconductivity and Phase Diagram in the Iron-based Arsenic-oxides RFeAsO1-d (R = rare earth metal) without F-Doping”, arxiv.org/abs/0804.2582, published in Europhysics Letters, vol. 83, p. 17002, Jul. 2008.
M. Rotter, et al., “Superconductivity at 38 K in the Iron Arsenide Ba1-xKxFe2As2”, Phys Rev Lett vol. 101, p. 107006 (2008).
C.W. Chu, et al., “Synthesis and Characterization of LiFeAs and NaFeAs”, preprint to ArXiv database, arXiv:0902.0806, submitted Feb. 2009.
S. Margadonna, et al., “Pressure evolution of low-temperature crystal structure and bonding of 37 K Tc FeSe superconductor”, preprint to ArXiv database, arXiv:0903.2204v1, submitted Mar. 2009.
H. Hiramatsu, et al., “Superconductivity in Epitaxial Thin Films of Co-Doped SrFe2As2 with Bilayered FeAs Structures and their Magnetic Anisotropy”, Applied Physics Express, vol. 1, p. 101702 (2008).
Hendrickson Stuart
Hoffberg Steven M.
Hypres, Inc.
Ostrolenk Faber LLP
Vijayakumar Kallambella
LandOfFree
Superconducting integrated circuit technology using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superconducting integrated circuit technology using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting integrated circuit technology using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4259831