Abstract
A dilution refrigerator with a cooling power of 500 μW/100 mK combined with a superconducting magnet of up to 13.5 T has been developed for measurement of the acoustic de Haas-van Alphen effect for heavy fermion compounds. A sample was immersed in a liquid 3He-4He mixture in the tail of the mixing chamber. A one-circle goniometer with a spiral gear to change the sample orientation with respect to the magnetic field was driven by a superconducting stepping motor in the mixing chamber. The ultrasonic pulse was transmitted through the high frequency CuNi coaxial lines with an electric impedance of 50 Ω.
Original language | English |
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Pages (from-to) | 902-907 |
Number of pages | 6 |
Journal | Cryogenics |
Volume | 32 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1992 |
Keywords
- acoustic de Hass-van Alphen effect
- dilution refrigerators
- ultrasonic waves
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)