Journal of Applied Physics
Feedback | Help | Exit
Journal of Applied Physics
Search:
   
 
 
 
Previous Article
Electronic structure of acceptor defects in (Zn,Mn)O and (Zn,Mn)(O,N)
Using first-principles density functional calculations, we study the electronic structure and magnetic properties of Mn-doped ZnO, wurtzite crystal structure, with various defects. This allows to unde...
Next Article
Magnetic properties of Fe–Cu alloys prepared by pulsed electrodeposition
FexCu100−x metastable alloys were prepared by pulsed electrodeposition for 5<x<85. The Fe-rich alloys crystallize in the bcc structure of -Fe and the Fe-poor ones in the fcc structure of C...

The combined influence of connectivity and disorder on Jc and Tc performances in MgxB2+10  wt %  SiC

J. Appl. Phys. 106, 093906 (2009); doi:10.1063/1.3253757

Published 6 November 2009

You are not logged in to this journal. Log in

W. X. Li,1,2 R. Zeng,1 L. Lu,1 Y. Li,2 and S. X. Dou1
1Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales 2522, Australia
2School of Materials Science and Technology, Shanghai University, 149 Yanchang Road, Shanghai 200072, China
The influences of connectivity and disorder on the critical current density Jc are discussed to clarify the different mechanisms of Jc(H) enhancement in different magnetic field ranges. Excess Mg in MgxB2+10  wt %  SiC composites effectively improves the connectivity, as evidenced by both the resistivity properties and the Raman scattering. The promising Jc(H) of Mg1.15B2+10  wt %  SiC is attributed to both the high connectivity and the improved irreversibility field, Hirr, which is in agreement with the Raman fitting analysis. Raman scattering measurements suggest a strengthened electron-E2g coupling and weakened disorder with Mg addition. ©2009 American Institute of Physics
History: Received 9 June 2009; accepted 29 September 2009; published 6 November 2009
Permalink: http://link.aip.org/link/?JAPIAU/106/093906/1
BUY THIS ARTICLE   (US$24)
Download HTML Download Sectioned HTML Download PDF (740 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 74.25.Sv
    Critical currents in superconductors
  • 74.62.Dh
    Effects of crystal defects, doping and substitution on superconducting transition temperature
  • 74.25.Fy
    Transport properties of superconductors
  • 74.25.Gz
    Optical properties of superconductors
  • 74.25.Kc
    Phonons in superconductors
  • 74.70.Ad
    Superconducting metals, alloys and binary compounds
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (28)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. M. Tinkham, Introduction to Superconductivity, 2nd ed. (McGraw-Hill, New York, 1996).
  2. X. H. Zeng, A. V. Pogrebnyakov, M. H. Zhu, J. E. Jones, X. X. Xi, S. Y. Xu, E. Wertz, Q. Li, J. M. Redwing, J. Lettieri, V. Vaithyanathan, D. G. Schlom, Z. K. Liu, O. Trithaveesak, and J. Schubert, Appl. Phys. Lett. 82, 2097 (2003).
  3. C. G. Zhuang, S. Meng, C. Y. Zhang, Q. R. Feng, Z. Z. Gan, H. Yang, Y. Jia, H. H. Wen, and X. X. Xi, J. Appl. Phys. 104, 013924 (2008).
  4. S. X. Dou, S. Soltanian, J. Horvat, X. L. Wang, S. H. Zhou, M. Ionescu, H. K. Liu, P. Munroe, and M. Tomsic, Appl. Phys. Lett. 81, 3419 (2002).
  5. S. K. Chen, A. Serquis, G. Serrano, K. A. Yates, M. G. Blamire, D. Guthrie, J. Cooper, H. Wang, S. Margadonna, and J. L. MacManus-Driscoll, Adv. Funct. Mater. 18, 113 (2008).
  6. R. Zeng, L. Lu, W. X. Li, J. L. Wang, D. Q. Shi, J. Horvat, S. X. Dou, M. Bhatia, M. Sumption, E. W. Collings, J. M. Yoo, M. Tomsic, and M. Rindfleisch, J. Appl. Phys. 103, 083911 (2008).
  7. W. X. Li, R. H. Chen, Y. Li, M. Y. Zhu, H. M. Jin, R. Zeng, S. X. Dou, and B. Lu, J. Appl. Phys. 103, 013511 (2008).
  8. S. Lee, T. Masui, A. Yamamoto, H. Uchiyama, and S. Tajima, Physica C 397, 7 (2003).
  9. G. Blatter, M. V. Feigel'man, V. B. Geshkenbein, A. I. Larkin, and V. M. Vinokur, Rev. Mod. Phys. 66, 1125 (1994).
  10. A. H. Moudden, J. Phys. Chem. Solids 67, 115 (2006).
  11. M. Eisterer, Supercond. Sci. Technol. 20, R47 (2007).
  12. C. Buzea and T. Yamashita, Supercond. Sci. Technol. 14, R115 (2001).
  13. W. X. Li, Y. Li, R. H. Chen, R. Zeng, S. X. Dou, M. Y. Zhu, and H. M. Jin, Phys. Rev. B 77, 094517 (2008).
  14. D. Dew-Hughes, Philos. Mag. 30, 293 (1974).
  15. M. J. Qin, X. L. Wang, H. K. Liu, and S. X. Dou, Phys. Rev. B 65, 132508 (2002).
  16. J. L. Wang, R. Zeng, J. H. Kim, L. Lu, and S. X. Dou, Phys. Rev. B 77, 174501 (2008).
  17. W. X. Li, Y. Li, R. H. Chen, R. Zeng, M. Y. Zhu, H. M. Jin, and S. X. Dou, J. Phys.: Condens. Matter 20, 255235 (2008).
  18. K. Kunc, I. Loa, K. Syassen, R. K. Kremer, and K. Ahn, J. Phys.: Condens. Matter 13, 9945 (2001).
  19. R. Zeng, S. X. Dou, L. Lu, W. X. Li, J. H. Kim, P. Munroe, R. K. Zheng, and S. P. Ringer, Appl. Phys. Lett. 94, 042510 (2009).
  20. P. B. Allen, Phys. Rev. B 6, 2577 (1972).
  21. J. Kortus, O. V. Dolgov, R. K. Kremer, and A. A. Golubov, Phys. Rev. Lett. 94, 027002 (2005).
  22. G. A. Ummarino, D. Daghero, and R. S. Gonnelli, Phys. Rev. B 71, 134511 (2005).
  23. A. Shukla, M. Calandra, M. d'Astuto, M. Lazzeri, F. Mauri, C. Bellin, M. Krisch, J. Karpinski, S. M. Kazakov, J. Jun, D. Daghero, and K. Parlinski, Phys. Rev. Lett. 90, 095506 (2003).
  24. W. L. McMillan, Phys. Rev. 167, 331 (1968).
  25. P. B. Allen and R. C. Dynes, Phys. Rev. B 12, 905 (1975).
  26. J. Kortus, I. I. Mazin, K. D. Belashchenko, V. P. Antropov, and L. L. Boyer, Phys. Rev. Lett. 86, 4656 (2001).
  27. R. Osborn, E. A. Goremychkin, A. I. Kolesnikov, and D. G. Hinks, Phys. Rev. Lett. 87, 017005 (2001).
  28. A. Brinkman, A. A. Golubov, H. Rogalla, O. V. Dolgov, J. Kortus, Y. Kong, O. Jepsen, and O. K. Andersen, Phys. Rev. B 65, 180517 (2002).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics