Towards precise measurement of oscillatory domain wall by ferromagnetic Josephson junction
arXiv:1202.0382 · doi:10.1063/1.3701782
Abstract
We theoretically propose a principle for precise measurement of oscillatory domain wall (DW) by a ferromagnetic Josephson junction, which is composed of a ferromagnetic wire with DW and two superconducting electrodes. The current-voltage curve exhibits stepwise structures, only when DW oscillates in the ferromagnetic wire. The voltage step appears at V = n(\hbar/2e)ω_DW with the fundamental constant \hbar/e, integer number n, and the DW frequency ω_DW. Since V can be determined in the order of 10^9 accuracy, the oscillatory DW will be measured more precisely than present status by conventional method.
arXiv comment3 pages, 2 figures
References in corpus (10)
- Spintronics: Fundamentals and applications
- Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
- Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
- Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
- Real-space observation of current-driven domain wall motion in submicron magnetic wires
- A spin triplet supercurrent through the half-metallic ferromagnet CrO2
- Switching of magnetization by non-linear resonance studied in single nanoparticles
- Critical Current Oscillations in Strong Ferromagnetic Pi-Junctions
- Rapid Domain Wall Motion in Permalloy Nanowires Excited by Spin-Polarized Current Applied Perpendicular to the Nanowire
- Tunable steady-state domain wall oscillator with perpendicular magnetic anisotropy