Search

Your search keyword '"Gan, Z.Z."' showing total 43 results
Start Over Author "Gan, Z.Z."
43 results on '"Gan, Z.Z."'

2. Epitaxial YBa2Cu3O(7-delta) thin films on LaMgAl1119: new substrates with low dielectric losses

Author

Xiong, G.C., Lian, G.J., Zhu, X., Li, J., Li, Y.J., Gan, Z.Z., Jing, D., Shao, K., and Guo, H.Z.

Subjects
Thin films -- Electric properties, High temperature superconductors -- Research, Copper oxide superconductors -- Research, Yttrium barium copper oxides -- Research, Business, Electronics, Electronics and electrical industries
Abstract

The deposition of high-critical temperature yttrium barium copper oxide thin films on a LaMgAl11O19 substrate material prepared by a pulsed laser ablation method is discussed. The superconductivity of the films and the structure and quality of the substrates were determined by four-probe resistivity and susceptibility measurements and x-ray diffraction. The utility of the new substrate for high frequency applications was demonstrated.

Published
1993

3. A comparative study of the dendritic avalanche in Mg[B.sub.2] thin films synthesized by pulsed laser deposition and hybrid physical chemical vapor deposition methods

Author

Jae-Yeap Lee, Hu-Jong Lee, Sung-Ik Lee, Zhuang, C.G., Wang, Y.Z., Feng, Q.R., Gan, Z.Z., Xi, X.X., Eun-Mi Choi, Jae-Hun Cho, and Young-Hun Jo

Subjects
Chemical vapor deposition -- Usage, Ablation (Vaporization technology) -- Usage, Magnesium compounds -- Magnetic properties, Magnesium compounds -- Electric properties, Magnetic hysteresis -- Analysis, Physics
Abstract

A study was conducted to examine the microscopic film structure and the magnetic hysteresis of Mg[B.sub.2] thin films synthesized by using hybrid physical chemical vapor deposition (HPCVD) which do not show dendritic avalanche compared to those prepared by pulsed laser deposition (PLD). The critical current density ([J.sub.c]), estimated from the magnetic hysteresis based on the Bean's critical-state model which showed a much higher [J.sub.c] in the PLD film than in a HPCVD film indicated higher vortex pinning in the PLD film.

Published
2009

4. Ultrahigh current-carrying capability in clean Mg[B.sub.2] films

Author

Zhuang, C.G., Meng, S., Zhang, C.Y., Feng, Q.R., Gan, Z.Z., Yang, H., Jia, Y., Wen, H.H., and Xi, X.X.

Subjects
Magnesium compounds -- Chemical properties, Magnesium compounds -- Spectra, Chemical vapor deposition -- Analysis, Dielectric films -- Chemical properties, Dielectric films -- Spectra, Thin films -- Chemical properties, Thin films -- Spectra, Physics
Abstract

The current-carrying capability of high quality epitaxial Mg[B.sub.2] films prepared by using the hybrid physical-chemical vapor deposition method is studied by using transport measurement in nanobridge constrictions and magnetization measurement. An extremely high self-field critical current density is observed, which has shown an excellent current-carrying capability in these films.

Published
2008

6. Scaling behavior of virgin magnetization curve of DyBa(2)Cu(3)O(y) crystal prepared by melt-textured growth method

Author

Wei, C.D., Liu, Z.X., Gan, Z.Z., Ren, H.T., Xiao, L., and He, Q.

Subjects
Rare earth metals -- Research, Crystals -- Growth, Magnetization -- Analysis, Physics
Abstract

Melt-textured growth method enables the preparation of DyBa2Cu3O4 crystals. Virgin magnetization curves of these crystals exhibit an on-parameters scaling behavior in the temperature range from 10 to 85 K. Temperature influences the irreversibility of magnetization. Extended Bean model explains the scaling behavior of these crystals.

Published
1994

31. Electron microscopy study of C[sub 60].

Author

Li, J.Q., Zhao, Z.X., Zhu, D.B., Gan, Z.Z., and Yin, D.L.

Subjects
MICROSTRUCTURE, BUCKMINSTERFULLERENE, ELECTRON diffraction, ELECTRONICS
Abstract

Examines the microstructural features of the buckminsterfullerene. Use of electron microscopy and electron diffraction; Characterization of the grains of the samples; Influence of high-density cracks on the magnetic and electronic properties of the samples.

Published
1991
Full Text
View/download PDF

33. Direct observation of remnant fields in Y2BaCuO5and platinum doped YBa2Cu3O7bulk superconductors

Author

Gao, Z.X., Yang, X., Wang, S.G., Xiao, L., Ren, H.T., Jiao, Y.L., Dai, Y.D., and Gan, Z.Z.

Abstract

The dynamic decay process of the remnant field and the thermally activated flux creep in the melt texture growth Y2BaCuO5and platinum doped YBa2Cu3O7bulk samples were directly observed. The doping effect of Y2BaCuO5and platinum on the trapped flux was clearly watched.

Published
1997
Full Text
View/download PDF

34. Related Fermi level position and non-equilibrium electron relaxation in Y1−x−yPrxCayBa2Cu3O7thin films

Author

Xiong, G.C., Zou, Y.H., Xia, Z.J., Yuan, P., Lian, G.J., and Gan, Z.Z.

Abstract

We report the transient differential reflectivity ΔR/R in Y1−x−yPrxCayBa2Cu3O7thin films. The transient differential reflectivity measurement reveals that the effect of Pr substitution for Y ions on the related Fermi level position is similar to that of the oxygen deficiency in YBa2Cu3O7-δsystem, however, it is different from the effect of divalent Ca substitution for Pr.

Published
1997
Full Text
View/download PDF

35. Properties of multilayer samples with interface of superconducting YBa2Cu3O7and ferromagnetic Pr0.7Sr0.3MnO3

Author

Xiong, G.C., Lian, G.J., Kang, J.F., Hu, Y.F., Zhang, Y., and Gan, Z.Z.

Abstract

YBa2Cu3O7/Pr0.7Sr0.3MnO3/Ag sandwiches and YBa2Cu3O7/Pr0.7Sr0.3MnO3/YBa2Cu3O7step-edge-junction structure samples with interfaces of superconducting YBa2Cu3O7(YBCO) and ferromagnetic Pr0.7Sr0.3MnO3(PMSO) layers have been prepared by pulsed laser deposition. The curves of resistivity versus temperature are used to discuss the quality and the interaction of the interfaces between the ferromagnetic PSMO and superconducting YBCO.

Published
1997
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results