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    题名: An Investigation of Microwave-Induced dc Voltages in a YBa2Cu3O7-Single Crystal
    作者: Ling, D. C.;Chen, J. T.;Wenger,L. E.
    贡献者: 淡江大學物理學系
    日期: 1996-06-01
    上传时间: 2013-01-15 18:40:41 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: Microwave-induced dc voltages in a YBa2Cu3O7-δ single crystal have been observed along its c axis with or without a dc bias current by utilizing standing waves near the end of an X-band (8–12 GHz) waveguide. With a dc bias current present, the induced voltages arise from both bolometric and nonbolometric effects; however, the characteristics of the induced voltages versus bias currents due to these two effects are distinctively different. In the bolometric effect, the induced voltages are simply due to a resistive change caused by microwave heating whereas the induced voltages from the nonbolometric effect are due to the Josephson vortex flow generated by the microwave H field below the superconducting transition temperature. Without a dc bias current, the induced voltages are attributed to the inverse ac Josephson effect which requires the presence of both the microwave E and H fields. © 1996 The American Physical Society.
    關聯: Physical Review B (Condensed Matter) 53(22), pp.15300-15304
    DOI: 10.1103/PhysRevB.53.15300
    显示于类别:[物理學系暨研究所] 期刊論文


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