Erratum: Effect of zero-point fluctuations on the long-range phase coherence of granular films

1985 ◽  
Vol 32 (7) ◽  
pp. 4784-4784 ◽  
Author(s):  
Jorge V. José
Keyword(s):  
Long Range ◽  
Zero Point ◽  
Phase Coherence ◽  
Granular Films

Superconductivity and Tunneling Spectroscopy in Granular and Homogeneous Quench Condensed thin Films

1990 ◽  
Vol 195 ◽  
Author(s):  
J. M. Valles ◽  
R. C. Dynes
Keyword(s):  
Thin Films ◽  
Film Thickness ◽  
Sheet Resistance ◽  
Long Range ◽  
Order Parameter ◽  
Energy Gap ◽  
Tunneling Spectroscopy ◽  
Phase Coherence ◽  
Granular Films ◽  
Grain Sizes

ABSTRACTQuench-condensed films of simple superconductors can be deposited with a morphology which is either granular (grain sizes on the scale of tens of angstroms) or homogeneous. Transport and tunneling studies of the normal and superconducting states of these films as a function of sheet resistance have revealed profound differences between them. In uniform films Tc. and the energy gap decrease continuously with decreasing film thickness. Superconductivity is destroyed by the reduction of the amplitude of the order parameter. In granular films, the grains are sufficiently large to support superconductivity in each grain. Long range phase coherence is destroyed by intergrain phase coherence breaking.

scholarly journals Long-Range Phase Coherence in Double-Barrier Magnetic Tunnel Junctions with a Large Thick Metallic Quantum Well

2015 ◽  
Vol 115 (15) ◽  
Author(s):  
B. S. Tao ◽  
H. X. Yang ◽  
Y. L. Zuo ◽  
X. Devaux ◽  
G. Lengaigne ◽  
...  
Keyword(s):  
Quantum Well ◽  
Long Range ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Phase Coherence ◽  
Double Barrier

Long-range atomic ordering and magnetic properties of Co1−xPtx/SiO2 granular films

2000 ◽  
Vol 87 (9) ◽  
pp. 6947-6949 ◽  
Author(s):  
Chen Chen ◽  
Osamu Kitakami ◽  
Satoshi Okamoto ◽  
Yutaka Shimada
Keyword(s):  
Magnetic Properties ◽  
Long Range ◽  
Atomic Ordering ◽  
Granular Films

SUPERCONDUCTIVITY AND TYPES OF GAP IN HIGH-Tc CUPRATES

2001 ◽  
Vol 15 (27) ◽  
pp. 3513-3528 ◽  
Author(s):  
FU-SUI LIU ◽  
WAN-FANG CHEN
Keyword(s):  
Phase Diagram ◽  
Long Range ◽  
Phase Coherence ◽  
Xy Model ◽  
Superconducting Gap ◽  
Band Model ◽  
High Tc ◽  
Local Spin ◽  
High Tc Cuprates

This paper extends the two-local-spin-mediated interaction from three- to four-band model, gives two T c formulas using long-range phase coherence condition in quantum and classical XY-models, phase diagram, and types of the gap in Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212). This paper argues that the superconducting gap and the pseudogap are the same gap just at different temperature regions. This paper also argues that the values of T c versus x should be determined by the long-range phase coherence conditions in the classical and quantum XY-model for underdoped and overdoped regions, respectively.

Short range and long range phase coherence in granular superconductors

1984 ◽  
Vol 57 (3) ◽  
pp. 193-207 ◽  
Author(s):  
P. Fazekas ◽  
B. M�hlschlegel ◽  
M. Schr�ter
Keyword(s):  
Long Range ◽  
Short Range ◽  
Phase Coherence ◽  
Granular Superconductors
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