1981
DOI: 10.1109/tmag.1981.1061755
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Kinetic effects in coercivity measurements

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Cited by 193 publications
(58 citation statements)
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“…Those constants can also be estimated analytically. Resolving the Arrhenius equation to H eff and setting P sw = 0.5 results in the Sharrock formula 20 : Fig. 4 depicts coercivity of a magnet as a function of time, the blue solid line depicts the Sharrock formula fitted to the experimental data which is visualized by orange dots.…”
Section: B Measurements and Resultsmentioning
confidence: 99%
“…Those constants can also be estimated analytically. Resolving the Arrhenius equation to H eff and setting P sw = 0.5 results in the Sharrock formula 20 : Fig. 4 depicts coercivity of a magnet as a function of time, the blue solid line depicts the Sharrock formula fitted to the experimental data which is visualized by orange dots.…”
Section: B Measurements and Resultsmentioning
confidence: 99%
“…Over this rather restricted range of sweep rates, the thinnest sample of set [A], the 3 nm sample shows the maximum change in coercivity of 41.6 mT whereas the 5 nm and 10 nm samples show changes of 16 mT and 14 mT respectively, confirming the sweep rate dependence as well as the thickness dependence that has previously been observed. [15][16][17][18][19] The coercivity of the ferromagnetic/ferroelectric sample is shown in Fig. 2(b), for both directions of polarization, with red and black data points indicating down and up polarization, respectively.…”
Section: Resultsmentioning
confidence: 99%
“…[15][16][17][18][19] The magnetic coercivity decreases with the field sweep rate, approaching the intrinsic coercivity for very slow sweep rates. Because magnetization reversal occurs by thermally activated processes, magnetization switching times depend on the energy barrier to be overcome, an energy barrier that depends (among other things) on the externally applied field.…”
Section: Introductionmentioning
confidence: 99%
“…Numerical fits to the high-field magnetization curve give a value of the leading anisotropy constant K 1 = 3.9͑9͒ MJ m −3 , which is close to the literature bulk value of 4.9 MJ m −3 . 20 As-deposited CoPt/Au wires are magnetically soft ͑see Ref. 21 for high field PPMS and SQUID magnetization curve for as-deposited CoPt/Au nanowires, Fig.…”
mentioning
confidence: 99%