Superconducting microstrip resonator for pulsed ESR of thin films

• Published in: Journal of magnetic resonance (1997) 2013-05, Vol.230, p.84-87
• Main Authors: Benningshof, O.W.B., Mohebbi, H.R., Taminiau, I.A.J., Miao, G.X., Cory, D.G.
• Format: Article
• Language: English
• Subjects: Arrays; Cavity quantum electrodynamics; Electric Conductivity; Electron spin; Electron Spin Resonance Spectroscopy - instrumentation; EPR; Equipment Design; Equipment Failure Analysis; Homogeneity; Magnetic fields; Magnetics - instrumentation; Materials Testing - instrumentation; Membranes, Artificial; Miniaturization; Nutation spectroscopy; Resonators; Signal Processing, Computer-Assisted - instrumentation; Strong coupling; Superconducting resonator; Superconductivity; Thin films; Transducers; X-band
• ISSN: 1090-7807; 1096-0856
• DOI: 10.1016/j.jmr.2013.01.010

[Display omitted] ► An high-Q superconducting microstrip resonator for pulsed ESR is described. ► The novel configuration of the microstrip lines enables a uniform microwave field. ► Strong coupling effects are seen due to the low mode volume of the resonator. ► One-dimensional ESR imaging is performed via nutation spectroscopy. ► The performances of the resonator make it a useful probe for thin film samples. This article describes a superconducting microstrip resonator operating at 9.5GHz (X-band) that is specially designed for pulsed ESR on thin films. A novel configuration consisting of an array of half-wave length microstrip transmission lines generates a uniform magnetic field over a 2-D region of 100×1000μm2 with field homogeneity better than 5×10-2. Using the device, we demonstrate strong coupling of the resonator to an electron spin ensemble and pulsed ESR on Si:P.