21 citations · 62 across the 8 of their papers we have counts for
11 papers
Spin transport with traps: dramatic narrowing of the Hanle curve
R. C. Roundy, M. E. Raikh
We study theoretically the spin transport in a device in which the active layer is an organic film with numerous deep in-gap levels serving as traps. A carrier, diffusing between m…
Manifestation of two-channel nonlocal spin transport in the shapes of the Hanle curves
R. C. Roundy, M. C. Prestgard, A. Tiwari +2
Dynamics of charge-density fluctuations in a system of two tunnel-coupled wires contains two diffusion modes with dispersion iw=Dq^2 and iw =Dq^2+2/tau_t, where D is the diffusion…
Temperature dependence of the spin relaxation in highly degenerate ZnO thin films
M. C. Prestgard, G. Siegel, R. Roundy +2
Zinc oxide is a wide-bandgap semiconductor which is considered a potential candidate for fabricating next-generation transparent spintronic devices. However, before this can be pra…
The shape of the Hanle curve in spin-transport structures in the presence of the ac drive
R. C. Roundy, M. C. Prestgard, A. Tiwari +1
Resistance between two ferromagnetic electrodes coupled to a normal channel depends on their relative magnetizations. The spin-dependent component, R, of the resistance changes wit…
Spin injection from a ferromagnet into a semiconductor in the case of a rough interface
R. C. Roundy, M. E. Raikh
The effect of the interface roughness on the spin injection from a ferromagnet into a semiconductor is studied theoretically. Even a small interface irregularity can lead to a sign…
Spin relaxation of a diffusively moving carrier in a random hyperfine field
R. C. Roundy, M. E. Raikh
Relaxation, <Sz(t)>, of the average spin of a carrier in course of hops over sites hosting random hyperfine fields is studied theoretically. In low dimensions, d = 1, 2, the decay…