Abstract
Superconductivity was discovered in heavily boron-doped diamond thin films deposited by the microwave plasma assisted chemical vapor deposition (MPCVD) method. Advantages of the MPCVD deposited diamond are the controllability of boron concentration in a wide range, and a high boron concentration, especially in (111) oriented films, compared to that of the high-pressure high-temperature method. The superconducting transition temperatures are determined to be 8.7 K for Tc onset and 5.0 K for zero resistance by transport measurements. And the upper critical field is estimated to be around 7 T.
| Original language | English |
|---|---|
| Pages (from-to) | 1936-1938 |
| Number of pages | 3 |
| Journal | Diamond and Related Materials |
| Volume | 14 |
| Issue number | 11-12 |
| DOIs | |
| Publication status | Published - 2005 Nov |
| Event | Proceedings of the 10th International Conference on New Diamond Science and Technology (ICNDST-10) ICNDST-10 Special Issue - Duration: 2005 May 11 → 2005 May 14 |
Keywords
- (111) Orientation
- Boron-doped diamond
- Metal-insulator transition
- Semiconductivity
- Superconductivity
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Chemistry(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Materials Chemistry
- Electrical and Electronic Engineering