Zobrazeno 1 - 10
of 37
pro vyhledávání: '"T. S. Abhilash"'
Autor:
Y. Tian, D. Lotnyk, A. Eyal, K. Zhang, N. Zhelev, T. S. Abhilash, A. Chavez, E. N. Smith, M. Hindmarsh, J. Saunders, E. Mueller, J. M. Parpia
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
The A–B transition in superfluid 3He is a pure experimental model system to study first-order phase transitions in the early Universe. Tian et al. observe the path dependence of the supercooling of the A phase in a wide parameter range and provide
Externí odkaz:
https://doaj.org/article/86a6a41f250f44b78c54a6e07250920e
Autor:
I. Todoshchenko, M. Kamada, J.-P. Kaikkonen, Y. Liao, A. Savin, M. Will, E. Sergeicheva, T. S. Abhilash, E. Kauppinen, P. J. Hakonen
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Probing fundamental quantum systems and their phase change is interesting. Here the authors demonstrate the existence of mobile quantum solid phase composed of dimerized 3He atoms and topology-induced vacancies using 3He adsorbed on carbon nanotube.
Externí odkaz:
https://doaj.org/article/c5581f92449b4f7dac304e9cf3407601
Autor:
D. Lotnyk, A. Eyal, N. Zhelev, T. S. Abhilash, E. N. Smith, M. Terilli, J. Wilson, E. Mueller, D. Einzel, J. Saunders, J. M. Parpia
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Superfluid 3He under confinement can be used as a model system for topological quantum matter, but few related measurements are reported. Here, the authors report on the thermal conduction of helium-3 in a micro-fabricated channel with unanticipated
Externí odkaz:
https://doaj.org/article/43565e0e43c849a9a317f192ede517b9
Autor:
N. Zhelev, T. S. Abhilash, E. N. Smith, R. G. Bennett, X. Rojas, L. Levitin, J. Saunders, J. M. Parpia
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Superfluid helium-3 provides a clean testing ground for the understanding of quantum phases and their transitions. Here the authors show that when helium is confined in a nanofluidic cavity supercooling across the first-order A–B transition is supp
Externí odkaz:
https://doaj.org/article/67750335cb1c42f5958abfc1c4346485
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Anisotropic disorder is predicted to change the stability of the superfluid state in3He and leads to new phases. Here, Zhelev et al. report signatures of the phase transitions in 3He confined in an extremely anisotropic ordered aerogel including a ne
Externí odkaz:
https://doaj.org/article/c3a417ff0c1142678948cea0f58eebf5
Publikováno v:
APL Materials, Vol 6, Iss 9, Pp 091102-091102-7 (2018)
Defects in the hexagonal boron nitride (h-BN) layer can facilitate the tunneling current through thick h-BN tunneling barriers. We have investigated such current-mediating defects as local probes for materials in two dimensional heterostructure stack
Externí odkaz:
https://doaj.org/article/207dbb86dbbd473e89f7402ae82dfb53
Autor:
E. N. Smith, John Saunders, T. S. Abhilash, Nikolay Zhelev, Jeevak M. Parpia, Anna Eyal, Dietrich Einzel, Erich J. Mueller, M. Terilli, Justin J. Wilson, Dmytro Lotnyk
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Nature Communications
Lotnyk, D, Eyal, A, Zhelev, N, Abhilash, T S, Smith, E N, Terilli, M, Wilson, J, Mueller, E, Einzel, D, Saunders, J & Parpia, J M 2020, ' Thermal transport of helium-3 in a strongly confining channel ', Nature Communications, vol. 11, no. 1, 4843 . https://doi.org/10.1038/s41467-020-18662-8
Nature Communications
Lotnyk, D, Eyal, A, Zhelev, N, Abhilash, T S, Smith, E N, Terilli, M, Wilson, J, Mueller, E, Einzel, D, Saunders, J & Parpia, J M 2020, ' Thermal transport of helium-3 in a strongly confining channel ', Nature Communications, vol. 11, no. 1, 4843 . https://doi.org/10.1038/s41467-020-18662-8
The investigation of transport properties in normal liquid helium-3 and its topological superfluid phases provides insights into related phenomena in electron fluids, topological materials, and putative topological superconductors. It relies on the m
Publikováno v:
Elo, T, Thanniyil Sebastian, A, Perelshtein, M R, Lilja, I, Korostylev, E V & Hakonen, P J 2019, ' Broadband lumped-element Josephson parametric amplifier with single-step lithography ', Applied Physics Letters, vol. 114, no. 15, 152601 . https://doi.org/10.1063/1.5086091
Applied Physics Letters
Applied Physics Letters
We present a lumped-element Josephson parametric amplifier (JPA) utilizing a straightforward fabrication process involving a single electron beam lithography step followed by double-angle evaporation of aluminum and in-situ oxidation. The Josephson j
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f19e4c185bf42c5a7a47c805891002c6
https://aaltodoc.aalto.fi/handle/123456789/37588
https://aaltodoc.aalto.fi/handle/123456789/37588
Autor:
Pertti Hakonen, Alexander Savin, Jukka-Pekka Kaikkonen, Andreas Isacsson, T. S. Abhilash, Juuso Manninen, Igor Todoshchenko, Vladislav Zavyalov, Antti Laitinen
Publikováno v:
Journal of Physics D: Applied Physics
Laitinen, A, Kaikkonen, J-P, Thanniyil Sebastian, A, Todoshchenko, I, Manninen, J, Zavyalov, V, Savin, A, Isacsson, A & Hakonen, P 2019, ' A graphene resonator as an ultrasound detector for generalized Love waves in a polymer film with two level states ', Journal of Physics D: Applied Physics, vol. 52, no. 24, 24LT02 . https://doi.org/10.1088/1361-6463/ab11a9
Laitinen, A, Kaikkonen, J-P, Thanniyil Sebastian, A, Todoshchenko, I, Manninen, J, Zavyalov, V, Savin, A, Isacsson, A & Hakonen, P 2019, ' A graphene resonator as an ultrasound detector for generalized Love waves in a polymer film with two level states ', Journal of Physics D: Applied Physics, vol. 52, no. 24, 24LT02 . https://doi.org/10.1088/1361-6463/ab11a9
We have investigated surface shear waves at 22 MHz in a 0.5-micron-thick polymer film on SiO2/Si substrate at low temperatures using suspended and non-suspended graphene as detectors. By tracking ultrasound modes detected by oscillations of a trilaye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::513222a7658a27536402dcb150c471f8
Publikováno v:
Nanotechnology
Liu, Y, Thanniyil Sebastian, A, Laitinen, A, Tan, Z, Liu, G & Hakonen, P J 2019, ' Dry transfer method for suspended graphene on lift-off-resist : simple ballistic devices with Fabry–Pérot interference ', Nanotechnology, vol. 30, no. 25, 25LT01 . https://doi.org/10.1088/1361-6528/ab0d30
Liu, Y, Thanniyil Sebastian, A, Laitinen, A, Tan, Z, Liu, G & Hakonen, P J 2019, ' Dry transfer method for suspended graphene on lift-off-resist : simple ballistic devices with Fabry–Pérot interference ', Nanotechnology, vol. 30, no. 25, 25LT01 . https://doi.org/10.1088/1361-6528/ab0d30
We demonstrate a fabrication scheme for clean suspended structures using chemical-vapor-deposition-grown graphene and a dry transfer method on lift-off-resist-coated substrates to facilitate suspended graphene nanoelectronic devices for technology ap