He 3 immersion cell for ultralow temperature study of amorphous solids
We have constructed a 3 He immersion cell for dielectric measurements of insulating amorphous solids in a nuclear demagnetization cryostat at temperatures between 500 μK and 150 mK. The samples are directly immersed in 3 He with two heat exchangers per electrode which are thermally isolated from eac...
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| Veröffentlicht in: | Review of scientific instruments 1997-04, Vol.68 (4), p.1831-1834 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We have constructed a
3
He
immersion cell for dielectric measurements of insulating amorphous solids in a nuclear demagnetization cryostat at temperatures between 500 μK and 150 mK. The samples are directly immersed in
3
He
with two heat exchangers per electrode which are thermally isolated from each other and have a very low capacitance to ground. The cell incorporates a
195
Pt
pulsed NMR thermometer with a novel superconducting magnet and a
3
He
viscometer for calibration. |
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| ISSN: | 0034-6748 1089-7623 |
| DOI: | 10.1063/1.1148055 |