# Resistivity noise in crystalline magnetic nanowires and its implications to domain formation and kinetics

Source: [Resistivity noise in crystalline magnetic nanowires and its implications to domain formation and kinetics](<https://www.sota2.com/research/paper/68fa2f0b1e209131ce868ba8>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:53:34.823Z

Authors: Amrita Singh, Debtosh Chowdhary, Arindam Ghosh

Published: 2009-08-02T15:48:47.000Z

## Abstract

We have investigated the time-dependent fluctuations in electrical resistance, or noise, in high quality crystalline magnetic nanowires within nanoporous templates. The noise increases exponentially with increasing temperature and magnetic field, and has been analyzed in terms of domain wall depinning within the Neel-Brown framework. The frequency-dependence of noise also indicates a crossover from nondiffusive kinetics to long-range diffusion at higher temperatures, as well as a strong collective depinning, which need to be considered when implementing these nanowires in magnetoelectronic devices.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0908.0136>)

[PDF](<https://arxiv.org/pdf/0908.0136.pdf>)