Erratum: Dynamic impedance of two-dimensional superconducting films near the superconducting transition [Phys. Rev. B63, 174505 (2001)]

2001 ◽  
Vol 64 (17) ◽  
Author(s):  
Stefan J. Turneaure ◽  
Thomas R. Lemberger ◽  
John M. Graybeal
Keyword(s):  
Superconducting Films ◽  
Two Dimensional ◽  
Superconducting Transition ◽  
Dynamic Impedance

Prediction of phonon-mediated superconductivity in two-dimensional Mo2B2

2019 ◽  
Vol 7 (9) ◽  
pp. 2589-2595 ◽  
Author(s):  
Luo Yan ◽  
Tao Bo ◽  
Peng-Fei Liu ◽  
Bao-Tian Wang ◽  
Yong-Guang Xiao ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Transition Temperatures ◽  
Superconducting Transition ◽  
Molybdenum Boride

We predict two new molybdenum boride monolayers as phonon-mediated superconductors with superconducting transition temperatures of 3.9 and 0.2 K.

Statics of the intermediate and two-dimensional mixed states in Type I superconducting films

1990 ◽  
Vol 165-166 ◽  
pp. 1471-1472 ◽  
Author(s):  
A. Favre ◽  
E. Holguin ◽  
B. Dutoit ◽  
L. Rinderer
Keyword(s):  
Superconducting Films ◽  
Type I ◽  
Two Dimensional ◽  
Mixed States

Preparation of YBCO Superconducting Films by Sol-Gel Process

2007 ◽  
Vol 546-549 ◽  
pp. 2007-2010
Author(s):  
Gao Yang Zhao ◽  
Huang Li Zhang ◽  
Ren Zhong Xue ◽  
Yuan Qing Chen ◽  
Li Lei
Keyword(s):  
Sol Gel ◽  
Precursor Solution ◽  
Superconducting Films ◽  
Superconducting Transition ◽  
X Ray Diffraction ◽  
Organic Salts ◽  
Ybco Films ◽  
X Ray ◽  
Sol Gel Process ◽  
Ybco Superconducting Films

precursor solution was prepared using barium trifluoroacetae (Ba-TFA) and non-fluorine yttrium (Y) and copper (Cu) organic salts. The precursor solution was modified by benzalacetone (BzAcH), in which the Cu2+ were chelated with BzAcH, which preventing the loss of Cu in the pyrolysis process. Dense YBCO superconducting films with smooth surface, which confirmed by scanning electron microscopy (SEM), were repeatedly obtained through sol-gel process. X-ray diffraction (XRD) 2θ scanning and φ scanning indicated that the as-prepared YBCO films had good c-axis texture. YBCO films with superconducting transition temperature (TC) above 89K were obtained.

The Response of Two-Dimensional Granular Superconducting Films to Light

1990 ◽  
Vol 195 ◽  
Author(s):  
J. C. Culbertson ◽  
U. Strom ◽  
S. A. Wolf
Keyword(s):  
Low Temperature ◽  
Photon Energy ◽  
Energy Gap ◽  
Superconducting Films ◽  
Excitation Power ◽  
Bias Current ◽  
Two Dimensional ◽  
Superconducting Energy Gap

ABSTRACTWe have examined the photoresponse of two-dimensional granular superconducting films of high Tc superconductors (Y-Ba-Cu-O). We see evidence for the existence of a twodimensional Kosterlitz-Thouless transition. The photoresponse and resistance have been measured as a functions of temperature, excitation power, bias current, and photon energy. The response to photons having energies above and below the superconducting energy gap(s) has been measured. Photoresponse features have been observed that are not explainable in terms of a conventional phonon bolometric mechanism. Comparison will be made with similar observations made on low temperature superconducting films (NbN-BN).

A Crucibleless Liquid Phase Growth Method of Preparing the Y‐Ba‐Cu‐0 Superconducting Films

1989 ◽  
Vol 169 ◽  
Author(s):  
K.C. Chen ◽  
L.H. Perng ◽  
C.H. Lin ◽  
T.P. Perng ◽  
T.B. Wu ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Buffer Layer ◽  
Melting Temperature ◽  
Superconducting Films ◽  
Superconducting Transition ◽  
Phase Growth ◽  
Initial Weight ◽  
Growth Method ◽  
Liquid Phase Growth

AbstractSuperconducting Y‐Ba‐Cu‐0 film can be prepared by a liquid phase growth method without crucible on 96 % and 99 % alumina substrates. A buffer layer of sputtered gold or platinum was necessary for the formation of Yba2Cu3Ox phase. The flux of Ba2Cu3O10. was appropriate for this purpose. For a film of 10 mm x 20 mm x 10 micron, 0.6 to 0.8 gm initial weight was optimal, the optimum melting temperature was 1090 to 1110 °C for 20 ‐ 30 minutes. In order to obtain films with superconducting transition, an additional Y2BaCuO5‐underlayer was necessary. The resultant optimal films had Tc‐onset of above 80 % and Tc ‐zero of typically around 60 K.

Two-dimensional stoichiometric boron carbides with unexpected chemical bonding and promising electronic properties

2018 ◽  
Vol 6 (7) ◽  
pp. 1651-1658 ◽  
Author(s):  
Dong Fan ◽  
Shaohua Lu ◽  
Yundong Guo ◽  
Xiaojun Hu
Keyword(s):  
Transition Temperature ◽  
Electronic Properties ◽  
Young’S Modulus ◽  
Chemical Bonding ◽  
Superconducting Transition Temperature ◽  
Young's Modulus ◽  
Two Dimensional ◽  
Superconducting Transition ◽  
Pyramidal Geometry ◽  
Bonding Patterns

We identify two B–C bonding patterns: pyramidal-geometry tetra-coordinated and hexa-coordinated sp2carbon moiety; B4C3has an ultrahigh Young's modulus that can even outperform graphene; the B2C sheet is metallic with a relatively high superconducting transition temperature (Tc≈ 21.20 K).

Specific heat of ordered equiatomic InMg, CuPt, and CuAu I below 30 K

1980 ◽  
Vol 58 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Douglas L. Martin
Keyword(s):  
Specific Heat ◽  
Debye Temperature ◽  
Normal State ◽  
Pure Gold ◽  
Two Dimensional ◽  
Superconducting Transition ◽  
Dimensional Effect ◽  
Lattice Specific Heat ◽  
Increasing Temperature

The results of specific heat measurements on ordered In −51.67 at.% Mg are presented. A superconducting transition was seen at about 0.95 K. In the normal state, the lattice specific heat varies in the usual way with temperature, i.e., the Debye temperature initially decreases with increasing temperature. This behavior was also seen in ordered equiatomic CuPt but in ordered equiatomic CuAu I the Debye temperature first goes through a maximum before decreasing to the usual minimum. The structure of all three alloys consists of alternating layers of different mass and it was initially supposed that the CuAu I result was a two-dimensional effect. However, the more recent and normal results on InMg and CuPt make this improbable and it appears that the CuAu I result is related to the behavior of pure gold which is itself anomalous.

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