Epitaxial diamond encapsulation of metal microprobes for high pressure experiments
- 13 November 2000
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 77 (21), 3400-3402
- https://doi.org/10.1063/1.1326838
Abstract
Diamond anvils with diamond encapsulated thin-film microcircuits have been fabricated for ultrahigh pressure electrical conductivity experiments. The diamond films were homoepitaxially deposited onto the diamond anvil substrates with microwave plasma chemical vapor deposition using a 2% methane in hydrogen gas mixture and a diamond substrate temperature of 1300 °C. The diamond embedded thin-film microprobes remain functional to megabar pressures. We have applied this technology to the study of the pressure-induced metallization of KI under pressures up to 1.8 Mbar. This technology has the potential of greatly advancing the pressure range of a number of existing high-pressure diagnostic techniques, and for expanding the capabilities of diamond anvil cells into new directions.Keywords
This publication has 20 references indexed in Scilit:
- Observation of pressure-induced superconductivity in the megabar regionJournal of Physics: Condensed Matter, 1998
- Metallic CsI at Pressures of up to 220 GigapascalsScience, 1998
- X-ray Imaging of Stress and Strain of Diamond, Iron, and Tungsten at Megabar PressuresScience, 1997
- Homoepitaxial diamond films on diamond anvils with metallic probes: the diamond/metal interface up to 74 GPaJournal of Physics: Condensed Matter, 1997
- High temperature, high rate homoepitaxial growth of diamond in an atmospheric pressure flameJournal of Crystal Growth, 1991
- Electrical resistivity and other electrical measurements at megabar pressuresScripta Metallurgica, 1988
- Band-Overlap Metallization of BaTePhysical Review Letters, 1984
- High-pressure optical absorption and x-ray-diffraction studies in RbI and KI approaching the metallization transitionPhysical Review B, 1983
- Diamond anvil cell and high-pressure physical investigationsReviews of Modern Physics, 1983
- On Atomic Properties which make an Element a MetalPhysical Review B, 1927