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II. TİP ÜSTÜNİLETKENLERİN MİKRODALGA YÜZEY DİRENCİ ÜZERİNE AKI SÜRÜKLENMESİNİN ETKİSİ

Year 2013, Issue: 030, 95 - 104, 15.04.2013

Şükrü Yıldız Fatih Yaşar Fedai İnanır Uğur Kölemen

Abstract

II. tip üstüniletkenlerde girdap hareketleri ile alakalı hala açık bazı sorunların çözümüne bir katkı olarak,

mikrodalga yüzey direncinde akı sürüklenmesinin alan bağlılığı üzerine teorik bir çalışma

gerçekleştirilmiştir. Akım yoğunluğunun alan bağlılığı için Anderson ve Kim tarafından önerilen ve akı

sürüklenmesini içeren bir teori ile mikrodalga yüzey direncinin hesaplanması için Bonura ve ark.

tarafından önerilen bir model kullanılmıştır. Sonuçlar, sürüklenme etkisi düşünülerek mikrodalga yüzey

direncinin kritik hal modeli ile hesaplanabileceğini ve histerezis çevrimlerinin çivilenme parametresine

güçlü bir şekilde bağlı olduğunu göstermiştir.

Keywords

Mikrodalga (md) yüzey direnci akı sürüklenmesi Kritik hal modeli II. Tip üstüniletkenler

References

  • [1] Y. Yeshurun ve A. P.Malozemoff, "Giant Flux Creep and Irreversibility in an Y-Ba-Cu-O Crystal: An Alternative to the Superconducting-Glass Model", Phys. Rev. Lett., 60, 2202 (1988).
  • [2] P.W. Anderson ve Y.B. Kim, "Hard Superconductivity: Theory of the Motion of Abrikosov Flux Lines", Rev. Mod. Phys., 36, 39 (1964).
  • [3] Y. Yeshurun, A. P.Malozemoff, F.Holtzberg ve T. R.Dinger, "Magnetic relaxation and the lower critical fields in a Y-Ba-Cu-O crystal", Phys. Rev. B, 38, 11828 (1988).
  • [4] O. Özogul, "Frequency and Field Dependencies of Susceptibilities of High Tc Superconductor YBCO", Journal of Superconductivity: Incorporating Novel Magnetism, 18, 503 (2005).
  • [5] S. L. Liu, G. J.Wu, L.Shan, J.Wu, X. B.Xu, X.Jin ve H. M.Shao, "Temperature dependence effective activation energy in Tl2Ba2CaCu2O8 thin film", Phys. Stat. Sol. (b), 243, 1314 (2006).
  • [6] Q. H. Chen, "Dynamics of vortex glass phase in strongly type-II superconductors", Phys. Rev. B, 78, 104501 (2008).
  • [7] M. Reissner, S. Mohammad, P. Kovac, I. Husek ve T. Melisek, "Investigation of magnetic relaxation in MgB2 wires", J. Phys.: Conf. Ser., 150, 052219 (2009).
  • [8] L. Miu, I. Ivan, P. Badica, G. Jakob, D. Miu, P. Mele, K. Matsumoto, M. Mukaida, Y. Yoshida, T. Horide, A. Ichinose ve S. Horii, "Magnetization relaxation in YBCO films with improved supercurrent transport properties", J. Phys.: Conf. Ser., 234, 012026 (2010).
  • [9] F. Xue, H. D. Yong ve Y. H. Zhou, "Effect of flux creep and viscous flux flow on flux-pinning-induced stress and magnetostriction in a long rectangular slab superconductor", J. Appl. Phys., 108, 103910 (2010).
  • [10] A. K. Pramanik, L. Harnagea, C. Nacke, A. U. B. Wolter, S. Wurmehl, V. Kataev ve B. Büchner, "Fishtail effect and vortex dynamics in LiFeAs single crystals", Phys. Rev. B, 83, 094502 (2011).
  • [11] M. W. Coffey and J. R. Clem, " Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors", Phys. Rev. Lett. 67, 386 (1991); " Theory of rf magnetic permeability of isotropic type-II superconductors in a parallel field ", Phys.Rev. B 45, 9872 (1992); "Theory of rf magnetic permeability of type-II superconductors in slab geometry with an oblique applied static magnetic field" Phys. Rev. B 45, 10527 (1992).
  • [12] M. Bonura, E. Di Gennaro, A. Agliolo Gallitto ve M. Li Vigni, "Critical-state effects on microwave losses in type-II superconductors", Eur. Phys. J. B 52, 459 (2006); M. Bonura, A. Agliolo Gallitto ve M. Li Vigni, "Magnetic hysteresis in the microwave surface resistance of Nb samples in the critical state", Eur. Phys. J. B 53, 315 (2006).
  • [13] W. A. Fietz, M. R. Beasley, J. Silcox ve W. Webb, "Magnetization of Superconducting Nb-25%Zr Wire", Phys. Rev., 136, A335 (1964).

EFFECT OF FLUX CREEP ON MICROWAVE SURFACE RESISTANCE OF TYPE-II SUPERCONDUCTORS

Year 2013, Issue: 030, 95 - 104, 15.04.2013

Şükrü Yıldız Fatih Yaşar Fedai İnanır Uğur Kölemen

Abstract

In an attempt to contribute to solving some still open problems concerning the vortex motion in type- II

superconductors, a theoretical study has been carried out for field dependence of the flux creep in

microwave surface resistance. It uses a theory proposed by Anderson and Kim for the field dependence of

current density with creep effect and a model suggested by Bonura et al. for the microwave surface

resistance. Results shows that, by considering creep effect, the microwave surface resistance can be

calculated with the critical state model and the hysteresis strongly depends on the pinning parameter.

Keywords

Microwave (mw) surface resistance flux creep critical state models type II superconductors

References

  • [1] Y. Yeshurun ve A. P.Malozemoff, "Giant Flux Creep and Irreversibility in an Y-Ba-Cu-O Crystal: An Alternative to the Superconducting-Glass Model", Phys. Rev. Lett., 60, 2202 (1988).
  • [2] P.W. Anderson ve Y.B. Kim, "Hard Superconductivity: Theory of the Motion of Abrikosov Flux Lines", Rev. Mod. Phys., 36, 39 (1964).
  • [3] Y. Yeshurun, A. P.Malozemoff, F.Holtzberg ve T. R.Dinger, "Magnetic relaxation and the lower critical fields in a Y-Ba-Cu-O crystal", Phys. Rev. B, 38, 11828 (1988).
  • [4] O. Özogul, "Frequency and Field Dependencies of Susceptibilities of High Tc Superconductor YBCO", Journal of Superconductivity: Incorporating Novel Magnetism, 18, 503 (2005).
  • [5] S. L. Liu, G. J.Wu, L.Shan, J.Wu, X. B.Xu, X.Jin ve H. M.Shao, "Temperature dependence effective activation energy in Tl2Ba2CaCu2O8 thin film", Phys. Stat. Sol. (b), 243, 1314 (2006).
  • [6] Q. H. Chen, "Dynamics of vortex glass phase in strongly type-II superconductors", Phys. Rev. B, 78, 104501 (2008).
  • [7] M. Reissner, S. Mohammad, P. Kovac, I. Husek ve T. Melisek, "Investigation of magnetic relaxation in MgB2 wires", J. Phys.: Conf. Ser., 150, 052219 (2009).
  • [8] L. Miu, I. Ivan, P. Badica, G. Jakob, D. Miu, P. Mele, K. Matsumoto, M. Mukaida, Y. Yoshida, T. Horide, A. Ichinose ve S. Horii, "Magnetization relaxation in YBCO films with improved supercurrent transport properties", J. Phys.: Conf. Ser., 234, 012026 (2010).
  • [9] F. Xue, H. D. Yong ve Y. H. Zhou, "Effect of flux creep and viscous flux flow on flux-pinning-induced stress and magnetostriction in a long rectangular slab superconductor", J. Appl. Phys., 108, 103910 (2010).
  • [10] A. K. Pramanik, L. Harnagea, C. Nacke, A. U. B. Wolter, S. Wurmehl, V. Kataev ve B. Büchner, "Fishtail effect and vortex dynamics in LiFeAs single crystals", Phys. Rev. B, 83, 094502 (2011).
  • [11] M. W. Coffey and J. R. Clem, " Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors", Phys. Rev. Lett. 67, 386 (1991); " Theory of rf magnetic permeability of isotropic type-II superconductors in a parallel field ", Phys.Rev. B 45, 9872 (1992); "Theory of rf magnetic permeability of type-II superconductors in slab geometry with an oblique applied static magnetic field" Phys. Rev. B 45, 10527 (1992).
  • [12] M. Bonura, E. Di Gennaro, A. Agliolo Gallitto ve M. Li Vigni, "Critical-state effects on microwave losses in type-II superconductors", Eur. Phys. J. B 52, 459 (2006); M. Bonura, A. Agliolo Gallitto ve M. Li Vigni, "Magnetic hysteresis in the microwave surface resistance of Nb samples in the critical state", Eur. Phys. J. B 53, 315 (2006).
  • [13] W. A. Fietz, M. R. Beasley, J. Silcox ve W. Webb, "Magnetization of Superconducting Nb-25%Zr Wire", Phys. Rev., 136, A335 (1964).
There are 13 citations in total.

Details

Primary Language Turkish
Subjects Material Production Technologies
Journal Section Articles
Authors

Şükrü Yıldız This is me

Fatih Yaşar

Fedai İnanır This is me

Uğur Kölemen This is me

Publication Date April 15, 2013
Published in Issue Year 2013 Issue: 030

Cite

APA Yıldız, Ş., Yaşar, F., İnanır, F., Kölemen, U. (2013). II. TİP ÜSTÜNİLETKENLERİN MİKRODALGA YÜZEY DİRENCİ ÜZERİNE AKI SÜRÜKLENMESİNİN ETKİSİ. Journal of Science and Technology of Dumlupınar University(030), 95-104.
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