In:
Review of Scientific Instruments, AIP Publishing, Vol. 77, No. 11 ( 2006-11-01)
Abstract:
We report on a new high-pressure instrument that has important advantages over the conventional diamond anvil cell (DAC). Our design is basically a miniaturized cubic press, i.e., six trimmed pyramidal diamond anvils compressing a central sample in three orthogonal directions rather than uniaxially. This geometry has three advantages over the DAC: first, it provides a high quality of uniform pressure due to the six-sided load, with improved support of the diamonds; second, samples can have volumes several hundred times larger and areas an order of magnitude greater; and third, it allows multidirectional optical access to the sample, with important advantages for spectroscopic studies such as Raman and Brillouin scatterings. The c-DAC is about the size and weight of a DAC and its pressure can be varied remotely, for example, while in a cryostat. The highest pressure achieved in our ongoing research is currently 22.4GPa, but limitations were not fundamental and we believe that pressures in the megabar range can be achieved.
Type of Medium:
Online Resource
ISSN:
0034-6748
,
1089-7623
Language:
English
Publisher:
AIP Publishing
Publication Date:
2006
detail.hit.zdb_id:
209865-9
detail.hit.zdb_id:
1472905-2
SSG:
11
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