Electron spin-vorticity coupling in pipe flows at low and high Reynolds number. - In: Physical review applied, ISSN 2331-7019, Bd. 14 (2020), 1, S. 014002-1-014002-9
Spin-hydrodynamic coupling is a recently discovered method to directly generate electricity from an electrically conducting fluid flow in the absence of Lorentz forces. This method relies on a collective coupling of electron spins - the internal quantum-mechanical angular momentum of the electrons - with the local vorticity of a fluid flow. In this work, we experimentally investigate the spin-hydrodynamic coupling in circular- and noncircular-capillary pipe flows and extend a previously obtained range of Reynolds numbers to smaller and larger values, 20 < Re < 21500, using the conducting liquid-metal alloy (Ga,In)Sn as the working liquid. In particular, we provide experimental evidence for the linear dependence of the generated electric voltage with respect to the bulk-flow velocity in the laminar regime of the circular pipe flow as predicted by Matsuo et al. [Phys. Rev. B. 96, 020401 (2017)]. Moreover, we show analytically that this behavior is universal in the laminar regime regardless of the cross-sectional shape of the pipe. Finally, the proposed scaling law by Takahashi et al. [Nat. Phys. 12, 52 (2016)] for the generated voltage in turbulent circular pipe flows is experimentally evaluated at Reynolds numbers higher than in previous studies. Our results verify the reliability of the proposed scaling law for Reynolds numbers up to Re = 21500 for which the flow is in a fully developed turbulent state.
https://doi.org/10.1103/PhysRevApplied.14.014002
The effects of an ocular direct electrical stimulation on pattern-reversal electroretinogram. - In: Frontiers in neuroscience, ISSN 1662-453X, Bd. 14 (2020), 588, S. 1-9
https://doi.org/10.3389/fnins.2020.00588
Imprinting the polytype structure of silicon carbide by rapid thermal processing. - In: Crystals, ISSN 2073-4352, Bd. 10 (2020), 6, 523, insges. 21 S.
https://doi.org/10.3390/cryst10060523
Identification and evaluation of cell- growth-inhibiting bDtBPP-analogue degradation products from phosphite antioxidants used in polyolefin bioprocessing materials. - In: Analytical and bioanalytical chemistry, ISSN 1618-2650, Bd. 412 (2020), 19, S. 4505-4518
https://doi.org/10.1007/s00216-020-02736-z
Novel SERS-based process analysis for label-free segmented flow screenings. - In: Lab on a chip, ISSN 1473-0189, Bd. 20 (2020), 13, S. 2364-2371
https://doi.org/10.1039/D0LC00367K
Impact of spin-exchange interaction on charge transfer in dual-polymer photovoltaic composites. - In: The journal of physical chemistry, ISSN 1932-7455, Bd. 124 (2020), 20, S. 10852-10869
https://doi.org/10.1021/acs.jpcc.0c02317
A lead field two-domain model for longitudinal neural tracts - analytical framework and implications for signal bandwidth. - In: Computational and mathematical methods in medicine, ISSN 1748-6718, Volume 2020 (2020), article ID 5436807, Seite 1-11
https://dx.doi.org/10.1155/2020/5436807
Dissimilar decoupling behavior of two-dimensional materials on metal surfaces. - In: The journal of physical chemistry letters, ISSN 1948-7185, Bd. 11 (2020), S. 5204-5211
https://doi.org/10.1021/acs.jpclett.0c01320
Novel flexible cap for application of transcranial electrical stimulation: a usability study. - In: Biomedical engineering online, ISSN 1475-925X, Bd. 19 (2020), 50, S. 1-11
https://doi.org/10.1186/s12938-020-00792-1
Infection-immunity competition: a simple model for illustrating the background of individual response on herd immunity. - In: Applied Sciences, ISSN 2076-3417, Bd. 10 (2020), 9, 3078, S. 1-12
https://doi.org/10.3390/app10093078