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періодичних видань НАН України
Ions in superfluid helium: measurement of the roton limited mobility
Репозиторій DSpace/Manakin
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Ions in superfluid helium: measurement of the roton limited mobility
Тема:
Специальный выпуск International Workshop on Cryocrystals and Quantum Crystals (CC-1995)
Посилання:
Ions in superfluid helium: measurement of the roton limited mobility / H. Gunther, M. Foerste, G. zu Putlitz, Th. Schumacher // Физика низких температур. — 1996. — Т. 22, № 2. — С. 189-193. — Бібліогр.: 23 назв. — англ.
Підтримка:
We are thankful to B. Tabbert for his continuous interest and support and for his help with implementing the CCD camera system. The authors acknowledge very fruitful discussions with L. P. Mezhov-Deglin. This work was sponsored by Deutsche Forschungssemeinschaft.
Дата:
1996
Переглядів:
304
Завантажень:
126
Анотація:
Different ions are used as microscopic probes for superfluid helium at temperatures ranging from 1.3 to 2.2 K. The ionic mobilities may provide new insight into the so far not well understood microscopic ion-roton scattering process. An ion source, which allows implantation of a great variety of impurity ions into liquid helium, is presented. Low-field velocities of Na⁺, Ag⁺ and Au⁺ ions are reported as a function of the electrical drift field and the temperature. Moreover, a temporal series of images taken by an intensifying CCD camera is presented, showing a cloud of moving Ba⁺ ions.
