Abstract
In this paper we report the generation of higher harmonics in a bulk polycrystalline MgB{sub 2} superconductor when it is subjected to ac and dc magnetic field. The MgB{sub 2} sample shows the generation of higher odd harmonics when an ac field is applied. The application of a small dc field (few gauss) in addition to an ac field also leads to the generation of second and fourth harmonics, which is an indication of the presence of some weak link grain boundaries in a MgB{sub 2} superconductor. We have studied the variation of the amplitude of higher harmonics with temperature for different values of amplitude of ac field. The observed results are interpreted in terms of weak link grain boundaries and a critical state model.
Khare, Neeraj;
[1]
Singh, D P;
[1]
Gupta, A K;
[1]
Aswal, D K;
[2]
Sen, Shashawati;
[2]
Gupta, S K;
[2]
Gupta, L C
[3]
- National Physical Laboratory, Dr K S Krishnan Road, New Delhi-110012 (India)
- Bhabha Atomic Research Centre, Mumbai-400085 (India)
- Tata Institute of Fundamental Research, Mumbai-400005 (India)
Citation Formats
Khare, Neeraj, Singh, D P, Gupta, A K, Aswal, D K, Sen, Shashawati, Gupta, S K, and Gupta, L C.
Generation of even harmonics in a MgB{sub 2} bulk superconductor: an indication of the presence of weak link grain boundaries.
United Kingdom: N. p.,
2004.
Web.
doi:10.1088/0953-2048/17/12/002.
Khare, Neeraj, Singh, D P, Gupta, A K, Aswal, D K, Sen, Shashawati, Gupta, S K, & Gupta, L C.
Generation of even harmonics in a MgB{sub 2} bulk superconductor: an indication of the presence of weak link grain boundaries.
United Kingdom.
https://doi.org/10.1088/0953-2048/17/12/002
Khare, Neeraj, Singh, D P, Gupta, A K, Aswal, D K, Sen, Shashawati, Gupta, S K, and Gupta, L C.
2004.
"Generation of even harmonics in a MgB{sub 2} bulk superconductor: an indication of the presence of weak link grain boundaries."
United Kingdom.
https://doi.org/10.1088/0953-2048/17/12/002.
@misc{etde_20592710,
title = {Generation of even harmonics in a MgB{sub 2} bulk superconductor: an indication of the presence of weak link grain boundaries}
author = {Khare, Neeraj, Singh, D P, Gupta, A K, Aswal, D K, Sen, Shashawati, Gupta, S K, and Gupta, L C}
abstractNote = {In this paper we report the generation of higher harmonics in a bulk polycrystalline MgB{sub 2} superconductor when it is subjected to ac and dc magnetic field. The MgB{sub 2} sample shows the generation of higher odd harmonics when an ac field is applied. The application of a small dc field (few gauss) in addition to an ac field also leads to the generation of second and fourth harmonics, which is an indication of the presence of some weak link grain boundaries in a MgB{sub 2} superconductor. We have studied the variation of the amplitude of higher harmonics with temperature for different values of amplitude of ac field. The observed results are interpreted in terms of weak link grain boundaries and a critical state model.}
doi = {10.1088/0953-2048/17/12/002}
journal = []
issue = {12}
volume = {17}
journal type = {AC}
place = {United Kingdom}
year = {2004}
month = {Dec}
}
title = {Generation of even harmonics in a MgB{sub 2} bulk superconductor: an indication of the presence of weak link grain boundaries}
author = {Khare, Neeraj, Singh, D P, Gupta, A K, Aswal, D K, Sen, Shashawati, Gupta, S K, and Gupta, L C}
abstractNote = {In this paper we report the generation of higher harmonics in a bulk polycrystalline MgB{sub 2} superconductor when it is subjected to ac and dc magnetic field. The MgB{sub 2} sample shows the generation of higher odd harmonics when an ac field is applied. The application of a small dc field (few gauss) in addition to an ac field also leads to the generation of second and fourth harmonics, which is an indication of the presence of some weak link grain boundaries in a MgB{sub 2} superconductor. We have studied the variation of the amplitude of higher harmonics with temperature for different values of amplitude of ac field. The observed results are interpreted in terms of weak link grain boundaries and a critical state model.}
doi = {10.1088/0953-2048/17/12/002}
journal = []
issue = {12}
volume = {17}
journal type = {AC}
place = {United Kingdom}
year = {2004}
month = {Dec}
}