Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Pashkin, Yu A."'
Autor:
Im, H., Lee, D. U., Jo, Y., Kim, J., Chong, Y., Song, W., Kim, H., Kim, E. K., Sin, S. -J., Moon, S., Prance, J. R., Pashkin, Yu. A., Tsai, J. S.
When a magnetic moment is embedded in a metal, it captures itinerant electrons to form the Kondo cloud1,2, which can spread out over a few micrometres3,4. For a metal with dense magnetic impurities such that Kondo clouds overlap with each other, corr
Externí odkaz:
http://arxiv.org/abs/2301.09047
Autor:
Autti, S., Bettsworth, F. C., Grigoras, K., Gunnarsson, D., Haley, R. P., Jones, A. T., Pashkin, Yu. A., Prance, J. R., Prunnila, M., Thompson, M. D., Zmeev, D. E.
On-chip demagnetization refrigeration has recently emerged as a powerful tool for reaching microkelvin electron temperatures in nanoscale structures. The relative importance of cooling on-chip and off-chip components and the thermal subsystem dynamic
Externí odkaz:
http://arxiv.org/abs/2209.07099
Autor:
Chawner, J. M. A., Barraud, S., Gonzalez-Zalba, M. F., Holt, S., Laird, E. A., Pashkin, Yu. A., Prance, J. R.
Publikováno v:
Phys. Rev. Applied 15, 034044 (2021)
A cryogenic quantum dot thermometer is calibrated and operated using only a single non-galvanic gate connection. The thermometer is probed with radio-frequency reflectometry and calibrated by fitting a physical model to the phase of the reflected rad
Externí odkaz:
http://arxiv.org/abs/2012.01209
Autor:
Guthrie, A., Kafanov, S., Noble, M. T., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Dorofeev, A. A., Krupenin, V. A., Presnov, D. E.
Since we still lack a theory of classical turbulence, attention has focused on the conceptually simpler turbulence in quantum fluids. Can such systems of identical singly-quantized vortices provide a physically accessible "toy model" of the classical
Externí odkaz:
http://arxiv.org/abs/2007.04482
Autor:
Guthrie, A., Haley, R. P., Jennings, A., Kafanov, S., Kolosov, O., Mucientes, M., Noble, M. T., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Zmeev, D. E., Efimov, V.
Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in $\mathrm{^3He}$ and $\mathrm{^4He}$ quantum fluids, as well as to the elastic properties of sol
Externí odkaz:
http://arxiv.org/abs/1908.07853
Autor:
Guenault, A. M., Guthrie, A., Haley, R. P., Kafanov, S., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Zmeev, D. E., Collin, E., Gazizulin, R., Maillet, O.
Publikováno v:
Phys. Rev. B 101, 060503 (2020)
Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high quality factor resonators immersed in superfluid \(^4\mathrm{He}\) can be excited by a modulated flux of phonons. A na
Externí odkaz:
http://arxiv.org/abs/1907.01947
Autor:
Guenault, A. M., Guthrie, A., Haley, R. P., Kafanov, S., Pashkin, Yu. A., Pickett, G. R., Poole, M., Schanen, R., Tsepelin, V., Zmeev, D. E., Collin, E., Maillet, O., Gazizulin, R.
Superfluids, such as superfluid $^3\mathrm{He}$ and $^4\mathrm{He}$, exhibit a broad range of quantum phenomena and excitations which are unique to these systems. Nanoscale mechanical resonators are sensitive and versatile force detectors with the ab
Externí odkaz:
http://arxiv.org/abs/1907.00970
Autor:
Guénault, A. M., Guthrie, A., Haley, R. P., Kafanov, S., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Zmeev, D. E., Collin, E., Gazizulin, R., Maillet, O., Arrayás, M., Trueba, J. L.
We report on nanomechanical resonators with very high-quality factors operated as mechanical probes in liquid helium \(^4\mathrm{He}\), with special attention to the superfluid regime down to millikelvin temperatures. Such resonators have been used t
Externí odkaz:
http://arxiv.org/abs/1810.10129
Autor:
Bradley, D. I., George, R., Guenault, A. M., Haley, R. P., Kafanov, S., Noble, M. T., Pashkin, Yu. A., Pickett, G. R., Poole, M., Prance, J. R., Sarsby, M., Schanen, R., Tsepelin, V., Wilcox, T., Zmeev, D. E.
Publikováno v:
Scientific Reports volume 7, Article number: 4876 (2017)
Microelectromechanical (MEMS) and nanoelectromechanical systems (NEMS) are ideal candidates for exploring quantum fluids since they can be manufactured reproducibly, cover the frequency range from hundreds of kilohertz up to gigahertz and usually hav
Externí odkaz:
http://arxiv.org/abs/1809.07411
Autor:
Presnov, D. E., Kafanov, S., Dorofeev, A. A., Bozhev, I. V., Trifonov, A. S., Pashkin, Yu. A., Krupenin, V. A.
Resonance properties of nanomechanical resonators based on doubly clamped silicon nanowires, fabricated from silicon-on-insulator and coated with a thin layer of aluminum, were experimentally investigated. Resonance frequencies of the fundamental mod
Externí odkaz:
http://arxiv.org/abs/1809.07215