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Browsing by Author "Haldar, Soumyajyoti"

Browsing by Author "Haldar, Soumyajyoti"

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    First-principles prediction of sub-10-nm skyrmions in Pd/Fe bilayers on Rh(111) 
    Haldar, Soumyajyoti; von Malottki, Stephan; Meyer, Sebastian; Bessarab, Pavel; Heinze, Stefan (American Physical Society (APS), 2018-08-27)
    We show that stable skyrmions with diameters of a few nanometers can emerge in atomic Pd/Fe bilayers on the Rh(111) surface. Based on density functional theory we calculate the exchange and the Dzyaloshinskii-Moriya interaction as well as the ...
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    Skyrmion lifetime in ultrathin films 
    von Malottki, Stephan; Haldar, Soumyajyoti; Delin, Anna; Heinze, Stefan; Bessarab, Pavel (American Physical Society (APS), 2019-02-26)
    We show that thermal stability of skyrmions due to entropic effects can be strongly affected by external control parameters such as magnetic field and interface composition. The lifetimes of isolated skyrmions in atomic Pd/Fe bilayers on Ir(111) and ...