Full text loading...
(a) Schematic diagram of the measurement circuit and a scanning electron microscope image of LSV fabricated in this study. (b) Cross-sectional transmission electron micrograph of Ag nanowire and corresponding energy dispersive x-ray mapping for Ag, Mg, and O.
(a) Nonlocal spin signal as a function of magnetic field for LSV with MgO capping with L = 300 nm at T = 300 K and 5 K. (d) Spin valve signal as a function of injector-detector separation at T = 300 K and 5 K. The solid lines are the fitting curves using Eq. (1).
(a) Temperature dependence of spin diffusion length of Ag nanowires. Solid lines show fitted curves based on the Elliott-Yafet mechanism with ɛ imp and ɛ ph determined from LSV with MgO capping. (b) Temperature dependence of spin relaxation time of Ag nanowire. Solid lines show fitted curves obtained by the same manner as (a). Fitted curves do not contain the contribution of T-dependent surface scattering. (c) Temperature dependence of resistivity of Ag nanowire. Solid lines show fitted curves for the Bloch-Grüneisen theory.
Temperature dependence of spin relaxation rate via phonon scattering. Closed circles show experimental data for the Ag nanowires in the nonlocal spin injection measurement of LSV with capping MgO and for Ag foil in the CESR experiment (see Ref. 24). The solid line shows the theoretical curve of the Bloch-Grüneisen model.
Article metrics loading...