"US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "[23AF9FDDFB19]" . "P(EE2.3.30.0055)" . "Ferromagnetic vortex core switching at elevated temperatures" . . "1" . . "89" . "Ferromagnetic vortex core switching at elevated temperatures"@en . . . "Lebecki, Krzysztof Jaromir" . "RIV/61989100:27740/14:86092769" . "RIV/61989100:27740/14:86092769!RIV15-MSM-27740___" . "Physical Review B" . . . "An approach for the investigation of vortex core switching is presented. Thermal effects up to the Curie point are included in a micromagnetic framework based on the recently developed Landau-Lifshitz-Bloch equation. In this approach it is easier to avoid numerical discretization artifacts, commonly present when a Bloch point is mediating the switching process. Switching in thin circular permalloy disks caused by the application of a slowly increasing magnetic \uFB01eld oriented orthogonally to the disk is considered. An energy barrier which can be overcome by thermal \uFB02uctuations is taken into account, leading to a strong in\uFB02uence of the temperature on the switching \uFB01eld.Inparticular,the switching \uFB01eld goes to zero at a signi\uFB01cantly smaller temperature than the Curie temperature. The deduced nucleation volume is smaller than the typical grain size in permalloy." . "8"^^ . . . "Ferromagnetic vortex core switching at elevated temperatures"@en . "2"^^ . "16669" . "An approach for the investigation of vortex core switching is presented. Thermal effects up to the Curie point are included in a micromagnetic framework based on the recently developed Landau-Lifshitz-Bloch equation. In this approach it is easier to avoid numerical discretization artifacts, commonly present when a Bloch point is mediating the switching process. Switching in thin circular permalloy disks caused by the application of a slowly increasing magnetic \uFB01eld oriented orthogonally to the disk is considered. An energy barrier which can be overcome by thermal \uFB02uctuations is taken into account, leading to a strong in\uFB02uence of the temperature on the switching \uFB01eld.Inparticular,the switching \uFB01eld goes to zero at a signi\uFB01cantly smaller temperature than the Curie temperature. The deduced nucleation volume is smaller than the typical grain size in permalloy."@en . . "1"^^ . . . "Ferromagnetic vortex core switching at elevated temperatures" . "Lebecki, Krzysztof Jaromir" . "27740" . "1098-0121" . "Reversal; Excitation"@en . "10.1103/PhysRevB.89.014421" . . "Nowak, Ulrich" . .