Direct Real-Space Observation of Stochastic Behavior in Domain Nucleation Process on a Nanoscale

Authors


  • This work was supported by the Ministry of Science and Technology of Korea through the Basic Research Project, the Cavendish-KAIST Research Cooperation Project and by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05-CH11231.

Abstract

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Stochastic behavior of nucleationprocess during magnetization reversalon a nanoscale in a nanogranularCoCrPt alloy film is directly observedutilizing magnetic soft X-raytransmission microscopy, whichprovides a spatial resolution of 15 nm.Thermal fluctuations in the orientationof the magnetic moments of the grainsplay a dominant role for the stochasticnature of domain nucleation in this system.

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