Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Bulk and shear viscosities in a multicomponent two-dimensional electron system. / Levin, A. D.; Gusev, G. M.; Chitta, V. A. и др.
в: Physical Review B, Том 110, № 19, 195402, 15.11.2024.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Bulk and shear viscosities in a multicomponent two-dimensional electron system
AU - Levin, A. D.
AU - Gusev, G. M.
AU - Chitta, V. A.
AU - Jaroshevich, A. S.
AU - Bakarov, A. K.
N1 - Grants No. 2019/16736-2, No. 2021/12470- 8, No. 2024/06755-8, and CNPq (National Council for Scientific and Technological Development).
PY - 2024/11/15
Y1 - 2024/11/15
N2 - We investigated magnetotransport in mesoscopic samples containing electrons from three different subbands in GaAs triple wells. At high temperatures, we observed positive magnetoresistance, which we attribute to the imbalance between different types of particles that are sensitive to bulk viscosities. At low temperatures, we found negative magnetoresistance, attributed to shear viscosity. By analyzing the magnetoresistance data, we were able to determine both viscosities. Remarkably, the electronic bulk viscosity was significantly larger than the shear viscosity. Studying multicomponent electron systems in the hydrodynamic regime presents an intriguing opportunity to further explore the physics in systems with high bulk viscosity.
AB - We investigated magnetotransport in mesoscopic samples containing electrons from three different subbands in GaAs triple wells. At high temperatures, we observed positive magnetoresistance, which we attribute to the imbalance between different types of particles that are sensitive to bulk viscosities. At low temperatures, we found negative magnetoresistance, attributed to shear viscosity. By analyzing the magnetoresistance data, we were able to determine both viscosities. Remarkably, the electronic bulk viscosity was significantly larger than the shear viscosity. Studying multicomponent electron systems in the hydrodynamic regime presents an intriguing opportunity to further explore the physics in systems with high bulk viscosity.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85209196438&origin=inward&txGid=65979ee32681e3be2110783403aeac77
UR - https://www.mendeley.com/catalogue/7d830479-bd1c-38b4-b8cc-0e17638cc64c/
U2 - 10.1103/PhysRevB.110.195402
DO - 10.1103/PhysRevB.110.195402
M3 - Article
VL - 110
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 19
M1 - 195402
ER -
ID: 61104609