Magnetic field-controlled high-Tc thick-film microstrip ring resonators

摘要

Abstract: The influence of small external magnetic field on microwave properties of superconductor thick film ring resonators has been studied at various cryogenic temperatures. The ring resonators made of YBa$-2$/Cu$-3$/O$-7$MIN$delta$/ (YBCO) and Bi$-2$/Sr$- 2$/Ca$-2$/Cu$-3$/O$-10$PLU$delta$/ (BSCCO) materials were realized by screen printing on yttrium stabilized ZrO$-2$/ (YSZ) and (100) oriented single crystal MgO substrates. External magnetic fields were found to have a strong effect on the microwave reflection of the superconducting ring resonators. These magnetic field-controllable microwave resonators may offer (1) a new method to improve the properties of microwave resonators and other microwave devices and (2) a new method to construct new types of devices (e.g., magnetic field sensors of high sensitivity). !4