Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3205476
Keywords
aluminium compounds; cobalt compounds; interface magnetism; iron compounds; magnetic aftereffect; magnetic tunnelling; magnetisation reversal; nickel compounds
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Funding
- National Science Foundation [DMR-0212302, DMR-0819885]
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The low frequency noise in magnetic tunnel junctions was studied as a function of applied magnetic field. In magnetic states where the magnetization is reversing, the measurement indicates a 1/f(2) spectrum whereas at all other applied fields a 1/f spectrum is observed. The 1/f(2) spectra are found to be an artifact of the magnetic after effect. Without the artificial influence of the magnetic after effect, only 1/f spectra are observed.
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