Dilution refrigerator for measurement of the acoustic de Haas - van Alphen effect

✍ Scribed by T. Goto; S. Sakatsume; A. Sawada; H. Matsui; R. Settai; S. Nakamura; Y. Ohtani; H. Goto; Y. Ohe; A. Tamaki; Y. Fuda; K. Abe; Y. Yamato; T. Fujimura

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 542 KB
• Volume: 32
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(92)90357-g

✦ Synopsis

A dilution refrigerator with a cooling power of 500 #W/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 -aHe 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 fL