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Full-Text Articles in Physics

Non-Local Spin Valve Interferometer: Experimental Observation Of Superconducting Spin Current And Spin Aharonov-Bohm Effect, Ning Lu Apr 2019

Non-Local Spin Valve Interferometer: Experimental Observation Of Superconducting Spin Current And Spin Aharonov-Bohm Effect, Ning Lu

Theses and Dissertations

An electron interferometer was designed and fabricated via a normal metal (supercon- ductor)/insulator/ferromagnet non-local lateral spin valve with a ring-shaped normal metal/insulator spacer, and spin current interference was observed. At 4.2 K, a very high spin signal of 200 mΩ was found in a device with 2 µm injector-detector dis- tance and magnetic field swept parallel to the plane. With a perpendicular magnetic field sweep, a Hanle effect measurement showed both spin precession and h/e oscil- lation. Because of the non-adiabatic nature of the precessing spins at low fields as they traverse the normal metal ring, this is an …


A Model Independent Measurement Of The Cross Section Ratio, R_Σ = Σ(Ν_Μ N → Μ^− P) / Σ(Ν_Μ N → 2track), Barnali Chowdhury Apr 2019

A Model Independent Measurement Of The Cross Section Ratio, R_Σ = Σ(Ν_Μ N → Μ^− P) / Σ(Ν_Μ N → 2track), Barnali Chowdhury

Theses and Dissertations

NOνA (NuMI Off-Axis νe Appearance) experiment is a long-baseline neutrino and anti-neutrino oscillation experiment, designed to study the neutrino mass ordering and to search for the effects of the CP violating phase angle δ. Extraction of the νµ and νe oscillation parameters requires knowledge of the energy of the neutrino interacting in the detector. The reactions of neutrinos with matter produce charged and neutral particles in the detector. How well we are able to measure the energy of the incoming neutrino is directly related to the final state particles, seen in the detector. Inaccurate …