Published July 16, 1990
| Version v1
Journal article
Millimeter-wave harmonic mixing with high Tc superconducting materials at room temperature
- 1. National Research Laboratory of Metrology, 1-1-4, Umezono, Tsukuba-shi, Ibaraki 305 (Japan)
Description
Harmonic generation and mixing in the 8∼80 GHz region has been studied in point-contact junctions made with sharply tipped tungsten whisker and sintered polycrystalline YBa2Cu3O7-y or single-crystal Bi2Sr2CaCu2Ox at room temperature. The signal-to-noise ratio (SNR) of beat notes as a function of harmonic number n is observed up to the tenth order and decreases with a slope of n-5.6 for even harmonic numbers. The dependence of the SNR of the beat note on a dc bias voltage and the current-voltage characteristics have been measured simultaneously and theoretically analyzed using the current-dependent mixing characteristics. The potential barrier and the insulating thickness for YBa2Cu3O7-y are estimated
Additional details
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 57
- Journal Issue
- 3
- Series
- Appl. Phys. Lett.
- Journal Page Range
- 313-315
- ISSN
- 0003-6951
- CODEN
- APPLA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21086210
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; ELECTRIC CONTACTS; FREQUENCY MIXING; GHZ RANGE 01-100; HARMONIC GENERATION; SIGNAL-TO-NOISE RATIO; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TUNGSTEN; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELEMENTS; EQUIPMENT; FREQUENCY RANGE; GHZ RANGE; METALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YTTRIUM COMPOUNDS