Published September 2, 1991
| Version v1
Journal article
Superconductivity of one-unit-cell thick YBa2Cu3O7 thin film
- 1. Institute for Chemical Research, Kyoto University, Uji611 (Japan)
- 2. Department of Pure and Applied Sciences, University of Tokyo, 381 Komaba, Meguro-ku, Tokyo 153 (Japan)
Description
We have found for the first time that superconductivity can occur in a one-unit-cell-thick layer of YBa2Cu3O7 (YBCO). The layer is grown, while monitoring with RHEED oscillations, on a superconducting PrBa2Cu3O7 (PrBCO) buffer layer and covered by a PrBCO layer by reactive evaporation. A reduction of the onset temperature is found to be mainly due to a decrease of the hole carriers but not due to the absence of interlayer couplings. This covering PrBCO layer has been found to provide the YBCO layer with carrier holes sufficient to induce superconductivity
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 67
- Journal Issue
- 10
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 1362-1365
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23004595
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM OXIDES; CARRIER DENSITY; CUPRATES; HIGH-TC SUPERCONDUCTORS; HOLES; QUATERNARY COMPOUNDS; SUPERCONDUCTING FILMS; TRANSITION TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; AMINES; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; FILMS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS