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This paper details the development of an integrated AC electro-osmotic (ACEO) microfluidic pump for dilute electrolytes consisting of a long serpentine microchannel lined with three dimensional (3D) stepped electrode arrays. Using low AC…

Fluid Dynamics · Physics 2009-08-06 Chien-Chih Huang , Martin Z. Bazant , Todd Thorsen

The interplay between spin, charge, and orbital degrees of freedom has led to the development of spintronic devices like spin-torque oscillators, spin-logic devices, and spin-transfer torque magnetic random-access memories. In this…

We show both numerically and analytically that a chemically patterned active pore can act as a micro/nano-pump for fluids, even if it is fore-aft symmetric. This is possible due to a spontaneous symmetry breaking which occurs when advection…

Soft Condensed Matter · Physics 2022-10-26 G. C. Antunes , P. Malgaretti , J. Harting , S. Dietrich

Spin pumping provides a fundamental route for dynamical spin transport, yet in its conventional form it produces only linear spin responses at the driving frequency. Recent studies have shown that spin-orbit coupling (SOC) can lift these…

Mesoscale and Nanoscale Physics · Physics 2026-02-17 Ousmane Ly

A new technique for medical imaging, "3{\gamma} imaging", is studied by our group at SUBATECH for few years. A small liquid xenon time projection chamber prototype has been built in order to demonstrate the feasibility of this technique.…

Liquid xenon offers several features, which make it suitable for applications in nuclear medicine, such as high scintillation yield and fast scintillation decay time. Moreover, being a continuous medium with a uniform response, liquid xenon…

Instrumentation and Detectors · Physics 2021-03-02 Carmen Romo-Luque

The "reverse-dynamo" mechanism - the amplification/generation of fast plasma flows by micro scale (turbulent) magnetic fields via magneto-fluid coupling is recognized and explored. It is shown that macro-scale magnetic fields and flows are…

The article considers an opportunity of pulsed acceleration of the proton beam in a spiral wave guide. The radial focus of the proton beam in the accelerator is carried out by means of the magnetic field of ten Tesla, generated by a…

Accelerator Physics · Physics 2017-03-28 S. N. Dolya , I. Sarhadov

We investigate parametric pumping of a spin-polarized current through a nearly-closed quantum dot in a perpendicular magnetic field. Pumping is achieved by tuning the tunnel couplings to the left and right lead - thereby operating the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Blaauboer , C. M. L. Fricot

High temperature superconducting (HTS) dynamos are promising devices that can inject large DC currents into the winding of superconducting machines or magnets in a contactless way. Thanks to this, troublesome brushes in HTS machines or…

Applied Physics · Physics 2021-05-19 Asef Ghabeli , Enric Pardo , Milan Kapolka

The Compact Muon Solenoid (CMS) is a general-purpose detector designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive featuresinclude a 4 T superconducting solenoid with 6 m diameter by 12.5 m long…

We study conductance and adiabatic pumped charge and spin currents in a graphene quantum pump with Corbino geometry in the presence of an applied perpendicular magnetic field. The pump is driven by the periodic and out of phase modulations…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Babak Abdollahipour , Elham Moomivand

We report the performance of a magnetically silent optically pumped cesium magnetometer with a statistical sensitivity of 3.5 pT/rtHz at 1~Hz and a stability of 90 fT over 150 seconds of measurement. Optical pumping with coherent,…

The scale of liquid xenon experiments for rare events searching is expanding, which is planned even to fifty tons level. The detector and distillation tower require a reliable cooling source with large cooling power at liquid xenon…

Instrumentation and Detectors · Physics 2025-06-13 Tao Zhan , Jianglai Liu , Yang Liu , Weihao Wu , Binbin Yan , Zhou Wang

XENON is a novel liquid xenon experiment concept for a sensitive dark matter search using a 1-tonne active target, distributed in an array of ten independent time projection chambers. The design relies on the simultaneous detection of…

We consider strongly interacting systems of effective spins, subject to dissipative spin-flip processes associated with optical pumping. We predict the existence of novel magnetic phases in the steady-state of this system, which emerge due…

Quantum Gases · Physics 2013-06-21 Tony E. Lee , Sarang Gopalakrishnan , Mikhail D. Lukin

It is proposed to produce highly charged ions in the local potential traps formed by the rippled electron beam in a focusing magnetic field. In this method, the extremely high electron current densities can be attained on short length of…

Plasma Physics · Physics 2015-03-18 V. P. Ovsyannikov , A. V. Nefiodov

Strong laser-induced magnetization of oxygen gas at room temperature and atmospheric pressure is achieved experimentally on the sub-nanosecond time scale. The method is based on controlling the electronic spin of paramagnetic molecules by…

Quantum Physics · Physics 2017-06-21 A. A. Milner , A. Korobenko , V. Milner

We investigate the pump efficiency of silicon vacancy-related spins in silicon carbide. For a crystal inserted into a microwave cavity with a resonance frequency of 9.4 GHz, the spin population inversion factor of 75 with the saturation…

Materials Science · Physics 2018-05-09 M. Fischer , A. Sperlich , H. Kraus , T. Ohshima , G. V. Astakhov , V. Dyakonov

A set of power supplies (PS) with output power rated from 100 W up to 10 kW for electromagnets powering was developed. These PS have range of current tuning of 60-80 db with high accuracy (error should be less than 0,01%). Some types of…

Accelerator Physics · Physics 2007-05-23 E. Y. Ermolov , V. R. Kozak , E. A. Kuper , A. S. Medvedko , S. P. Petrov , V. F. Veremeenko