Development of Designer Diamond Anvil Cells for AC Magnetic Susceptibility Experiments
Abstract
With the continued development of novel Designer Diamond Anvil Cells, we are able to expand the experimental capabilities of a DAC to include highly sensitive AC magnetic susceptibility measurements with a very high signal-to-background ratio, which are both estimated to be several orders of magnitude higher than previous techniques. The AC susceptibility Designer Diamond Anvil Cells consist of a five turn tungsten wire lithographically deposited on the diamond tip, followed by epitaxial diamond deposition to insulate the tungsten coil from the rhenium gasket. We expect to be able to measure the magnetic properties of materials from room temperature down to 10 K, and up to 2 Mbars. Preliminary results show that this technique works very well in identifying the ferromagnetic transition of Gd. This and further experiments will be discussed, including the investigation of various magnetic properties (ferromagnetic, antiferromagnetic, superconducting transitions) of transition metal oxides, as well as rare-earth and actinide compounds.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2001
- Bibcode:
- 2001AGUFM.S52H..01J
- Keywords:
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- 3924 High-pressure behavior;
- 3929 NMR;
- Mossbauer spectroscopy;
- and other magnetic techniques;
- 3994 Instruments and techniques