Novel Diamond Anvil Cell for Electrical Measurements using Boron-doped Metallic Diamond Electrodes
R. Matsumoto (1,2), Y. Sasama (1,2), M. Fujioka (1,3), T. Irifune (4),, M. Tanaka (1), T. Yamaguchi (1,2), H. Takeya (1), Y. Takano (1,2) ((1) MANA,, National Institute for Materials Science, (2) Graduate School of Pure and, Applied Sciences, University of Tsukuba
TL;DR
This paper introduces a new diamond anvil cell with boron-doped metallic diamond electrodes for high-pressure electrical measurements, demonstrating durability and effective performance up to 30 GPa.
Contribution
It presents a novel design of a diamond anvil cell with integrated boron-doped diamond electrodes fabricated via microwave plasma CVD and electron beam lithography.
Findings
Electrodes showed no degradation after repeated use.
Electrical measurements of Pb performed up to 8 GPa.
Maximum pressure achieved was above 30 GPa.
Abstract
A novel diamond anvil cell suitable for electrical transport measurements under high pressure has been developed. A boron-doped metallic diamond film was deposited as an electrode onto a nano-polycrystalline diamond anvil using a microwave plasma-assisted chemical vapor deposition technique combined with electron beam lithography. The electrical transport measurements of Pb were performed up to 8 GPa, and the maximum pressure reached was above 30 GPa. The boron-doped metallic diamond electrodes showed no signs of degradation after repeated compression measurements.
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