Comparison of microwave properties of YBCO films on MgO and LaAlO3 substrates
Jacob, Mohan V., Mazierska, Janina, Savvides, Nick, Ohshima, Shigetoshi, and Oikawa, Shinichro (2002) Comparison of microwave properties of YBCO films on MgO and LaAlO3 substrates. Physica C: Superconductivity and its Applications, 372 (1). pp. 474-477.
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To obtain low loss and better performance of high temperature superconducting (HTS) microwave devices, higher quality HTS thin films are required. As it is well known, properties of HTS films and effects of temperature, frequency and microwave power on the properties depend on the type of substrate used and the method of deposition. YBa2Cu3O7−δ (YBCO) films on lanthanum aluminate (LAO) are considered to have lowest losses, and are commonly used for HTS planar filters for cellular phone base stations. We have measured the surface resistance (Rs) of high quality YBCO thin films, deposited on LAO and MgO substrates, as a function of frequency, temperature and microwave power to assess the quality of YBCO films on the lower cost MgO substrates for possible applications in communication systems.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||superconducting thin film; surface resistance|
|Date Deposited:||11 Jun 2009 01:31|
|FoR Codes:||09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 100%|
|SEO Codes:||89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%|
|Citation Count from Web of Science||