Zobrazeno 1 - 10
of 112
pro vyhledávání: '"M. J. Fear"'
Autor:
A. A. Levchenko, Andrei Golov, N. N. Kolesnikov, P. M. Walmsley, Yu V. Kotov, M. J. Fear, D. N. Borisenko
Publikováno v:
Instruments and Experimental Techniques. 57:755-759
Methods for the production of field-emission sources of charges on the basis of carbon nanotubes are described. These sources can be used to study the properties of injected charges in cryogenic liquids and crystals (the area of the source surface is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6ad8c62112beb62d20071700d20dc93
https://doi.org/10.1134/s002044121406013x
https://doi.org/10.1134/s002044121406013x
Publikováno v:
Приборы и техника эксперимента. 2014:107-111
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f39b845fe55550cb9be013d2dee08b3
https://doi.org/10.7868/s0032816214060159
https://doi.org/10.7868/s0032816214060159
Autor:
R. Schanen, M. J. Fear, Viktor Tsepelin, C. R. Lawson, Richard P. Haley, L. A. Wheatland, A. M. Guénault, Shaun N. Fisher, George R. Pickett, D. I. Bradley
Publikováno v:
Journal of Low Temperature Physics. 175:379-384
We have been studying the behaviour of commercial quartz tuning forks immersed in superfluid 4He and driven at resonance. For one of the forks we have observed hysteresis and switching between linear and non-linear damping regimes at temperatures bel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d21b5fefc5ae51cdc728d654b22759b
https://doi.org/10.1007/s10909-013-0931-5
https://doi.org/10.1007/s10909-013-0931-5
Autor:
C. R. Lawson, Viktor Tsepelin, A. M. Guénault, Paul N. Williams, R. Schanen, M. J. Fear, Shaun N. Fisher, Richard P. Haley, George R. Pickett, M. Človečko, D. I. Bradley
Publikováno v:
Journal of Low Temperature Physics. 165:114-131
We have developed a new “floppy wire” device for studying the motion through quantum fluids and solids at very low temperatures. The device is particularly well suited for producing large amplitudes of motion, for measuring drag forces at low fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae0c2fe54948cfab2e6b1e2ecfa02a38
https://doi.org/10.1007/s10909-011-0388-3
https://doi.org/10.1007/s10909-011-0388-3
Autor:
E. A. Guise, M. J. Fear, A. M. Guénault, D. Garg, Richard P. Haley, R. Schanen, Shaun N. Fisher, Viktor Tsepelin, G. Foulds, George R. Pickett, D. I. Bradley, P. Crookston, Oleg Kolosov
Publikováno v:
Journal of Low Temperature Physics. 161:536-547
Recently, quartz tuning forks have been used to probe the dynamics of quantum fluids. For many of these measurements it is important to know the velocity amplitude of the tips of the vibrating fork prongs. We have used different techniques to establi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38f2d61e5fb76a3113dd74ba1dbfe3c0
https://doi.org/10.1007/s10909-010-0227-y
https://doi.org/10.1007/s10909-010-0227-y
Autor:
P. M. Walmsley, M. J. Fear, L. P. Mezhov-Deglin, N. N. Kolesnikov, D. N. Borisenko, Andrei Golov, Yu V. Kotov, A. A. Levchenko
Publikováno v:
Borisenko, D N, Walmsley, P M, Golov, A, Kolesnikov, N N, Kotov, Y V, Levchenko, A A, Mezhov-Deglin, L P & Fear, M 2015, ' Nanotube-based source of charges for experiments with solid helium at low temperatures ', Low Temperature Physics, vol. 41, no. 7, pp. 567-570 . https://doi.org/10.1063/1.4927049
Scopus-Elsevier
Scopus-Elsevier
Methods of preparation of the field-emission sources of charges from carbon nanotubes suitable for study of injected charges in solid helium at low temperatures T < 1 K are presented. The sources have been prepared by arc discharge deposition of nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2deea749b75ef37df0ea725f9a48b662
https://doi.org/10.1063/1.4927049
https://doi.org/10.1063/1.4927049
Methods of preparation of the field-emission sources of charges from carbon nanotubes suitable for study of injected charges in solid helium at low temperatures T < 1K are presented. The sources have been prepared by arc discharge deposition of nanot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2295::e3c4650e8d0ae735a627c0272363defe
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:270555
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:270555
We have measured the response of a torsional oscillator containing polycrystalline hcp solid 4He to applied steady rotation in an attempt to verify the observations of several other groups that were initially interpreted as evidence for macroscopic q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2295::cb4a8e98af9bd7a42898f6c456d754d1
Autor:
A. M. Guénault, Richard P. Haley, Viktor Tsepelin, D. I. Bradley, R. Schanen, Shaun N. Fisher, C. R. Lawson, George R. Pickett, M. J. Fear
We have investigated the behaviour of a large vibrating wire resonator in the B-phase of superfluid He-3 at zero pressure and at temperatures below 200 mu K. The vibrating wire has a low resonant frequency of around 60 Hz. At low velocities the motio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0af3b73e3d8263d385cc8953ac0101e
https://doi.org/10.1007/s10909-013-0923-5
https://doi.org/10.1007/s10909-013-0923-5
Autor:
Viktor Tsepelin, D. I. Bradley, Peter V. E. McClintock, George R. Pickett, A. M. Guénault, Shaun N. Fisher, L. A. Wheatland, C. R. Lawson, R. Schanen, M. J. Fear, Richard P. Haley
We have studied the resonance of a commercial quartz tuning fork immersed in superfluid He-4, at temperatures between 5 mK and 1 K, and at pressures between zero and 25 bar. The force-velocity curves for the tuning fork show a linear damping force at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3fa152cae9de830563fefa48bcd937d
https://doi.org/10.1007/s10909-009-9901-3
https://doi.org/10.1007/s10909-009-9901-3