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Microwave harmonic emission in MgB 2 superconductor: Comparison with YBA 2 CU 3 O 7
Author(s) -
Gallitto A. Agliolo,
Bonsignore G.,
Di Gennaro E.,
Giunchi G.,
Vigni M. Li,
Manfrinetti P.
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22001
Subject(s) - microwave , superconductivity , ceramic , materials science , harmonic , analytical chemistry (journal) , magnetic field , condensed matter physics , physics , chemistry , metallurgy , chromatography , quantum mechanics
Abstract We report results of microwave second‐harmonic generation in ceramic samples of MgB 2 , prepared by different methods. The SH signal has been investigated as a function of the temperature and the static magnetic field. The results are discussed in the framework of models reported in the literature. We show that the peculiarities of the SH signal are related to the specific properties of the sample. A comparison with the results obtained in ceramic and crystalline YBa 2 Cu 3 O 7 shows that the second‐harmonic emission in MgB 2 is weaker than that observed in ceramic YBa 2 Cu 3 O 7 . © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2482–2486, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22001