High-pressure generation using double stage micro-paired diamond anvils shaped by focused ion beam

Takeshi Sakai, Takehiko Yagi, Hiroaki Ohfuji, Tetsuo Irifune, Yasuo Ohishi, Naohisa Hirao, Yuya Suzuki, Yasushi Kuroda, Takayuki Asakawa, Takashi Kanemura

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Micron-sized diamond anvils with a 3 μm culet were successfully processed using a focused ion beam (FIB) system and the generation of high pressures was confirmed using the double stage diamond anvil cell technique. The difficulty of aligning two second-stage micro-anvils was solved via the paired micro-anvil method. Micro-manufacturing using a FIB system enables us to control anvil shape, process any materials, including nano-polycrystalline diamond and single crystal diamond, and assemble the sample exactly in a very small space between the second-stage anvils. This method is highly reproducible. High pressures over 300 GPa were achieved, and the pressure distribution around the micro-anvil culet was evaluated by using a well-focused synchrotron micro-X-ray beam.

Original languageEnglish
Article number033905
JournalReview of Scientific Instruments
Volume86
Issue number3
DOIs
Publication statusPublished - 2015 Mar 1
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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