Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles

Details Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles

2005-09-16

arxiv.org/abs/cond-mat/0509452v3

Phys. Rev. Lett. 96, 146803 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages 3 figs colour

Scientific paper

10.1103/PhysRevLett.96.146803

We present measurements of mesoscopic resistance fluctuations in cobalt nanoparticles and study how the fluctuations with bias voltage, bias fingerprints, respond to magnetization reversal processes. Bias fingerprints rearrange when domains are nucleated or annihilated. The domain-wall causes an electron wavefunction phase-shift of $\approx 5\pi$. The phase-shift is not caused by the Aharonov-Bohm effect; we explain how it arises from the mistracking effect, where electron spins lag in orientation with respect to the moments inside the domain-wall. Dephasing time in Co at $0.03K$ is short, $\tau_\phi\sim ps$, which we attribute to the strong magnetocrystalline anisotropy.

Affiliated with

Also associated with

No associations

Rating

Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mesoscopic Resistance Fluctuations in Cobalt Nanoparticles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-554009