Realization of mechanical rotation in superfluid helium

Realization of mechanical rotation in superfluid helium

Gordon, E.B. ; Kulish, M.I. ; Karabulin, A.V. ; Matyushenko, V.I. ; Dyatlova, E.V. ; Gordienko, A.S. ; Stepanov, M.E.

Тема: Квантовые жидкости и квантовые кpисталлы

Інший ID: PACS: 67.25.dk, 07.20.Mc

URI: http://dspace.nbuv.gov.ua/handle/123456789/175153

Посилання: Realization of mechanical rotation in superfluid helium / E.B. Gordon, M.I. Kulish, A.V. Karabulin, V.I. Matyushenko, E.V. Dyatlova, A.S. Gordienko, M.E. Stepanov // Физика низких температур. — 2017. — Т. 43, № 9. — С. 1316-1323. — Бібліогр.: 32 назв. — англ.

Підтримка: The authors are grateful to S. B. Echmaev for the technical aid and to I. I. Khodos for the TEM study. This work was supported by the Russian Science Foundation (RSF), Project No. 14-13-00574.

Дата: 2017

Завантажень: 232

Realization of mechanical rotation in superfluid helium

Анотація:

The possibility of using miniaturized low-power electric motors submerged in superfluid helium for organization of rotation inside a cryostat has been investigated. It has been revealed that many of commercial micromotors can operate in liquid helium consuming low power. Turret with 5 sample holders, assembled on the base of stepper motor, has been successfully tested in experiments on the nanowire production in quantized vortices of superfluid helium. Application of the stepper motor made it possible in a single experiment to study the effect of various experimental parameters on the yield and quality of the nanowires. The promises for continuous fast rotation of the bath filled by superfluid helium by using high-speed brushless micromotor were outlined and tested. Being realized, this approach will open new possibility to study the guest particles interaction with the array of parallel linear vortices in He II.

Показати повний запис статті