Published January 21, 2002
| Version v1
Journal article
Improved surface imaging with a near-field scanning microwave microscope using a tunable resonator
- 1. Department of Physics, Sogang University, C.P.O. 1142, Seoul 121-742 (Korea, Republic of)
Description
We report a microwave surface imaging technique using a near-field scanning microwave microscope with a tunable resonance cavity. By tuning the resonance cavity, we could demonstrate improved sensitivity and spatial resolution of the topographic image of YBa2Cu3Oy thin films on MgO substrates. By measuring the shift of resonant frequency and the change of quality factor, we obtained near-field scanning microwave images with a spatial resolution better than 4 μm at an operating frequency of f=1-1.5 GHz. The principal of operation could be explained by the perturbation theory of a coaxial resonant cavity, considering the radius of the probe tip, the sample-tip distance, and the impedance matching
Additional details
Identifiers
- DOI
- 10.1063/1.1435068;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 80
- Journal Issue
- 3
- Journal Page Range
- p. 524-526
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35011201
- Subject category
- S36: MATERIALS SCIENCE; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- BARIUM COMPOUNDS; CAVITY RESONATORS; HIGH-TC SUPERCONDUCTORS; IMPEDANCE; MICROSCOPY; MICROWAVE RADIATION; SUPERCONDUCTIVITY; SURFACES; THIN FILMS; TOPOGRAPHY; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; FILMS; PHYSICAL PROPERTIES; RADIATIONS; RESONATORS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Notes
- (c) 2002 American Institute of Physics.