Micromagnetic investigation of domain and domain wall evolution through the spin-reorientation transition of an epitaxial NdCo5 film. (1st March 2017)

• Record Type: Journal Article
• Authors: Seifert, Marietta; Schultz, Ludwig; Schäfer, Rudolf; Hankemeier, Sebastian; Frömter, Robert; Oepen, Hans Peter; Neu, Volker
• Is Part Of: New journal of physics. Volume 19:Number 3(2017:Mar.)
• Publication Date: 2017-03-01
• Subjects: NdCo5 -- spin reorientation transition -- micromagnetic simulation -- scanning electron microscope with polarisation analysis -- thin film -- pinning -- domain pattern; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/aa60d5
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: The domain pattern and the domain wall microstructure throughout the spin-reorientation transition of an epitaxial NdCo5 thin film are investigated by micromagnetic simulations. The temperature-dependent anisotropy constants K 1 and K 2, which define the anisotropy energy term in the model, are chosen to reflect the easy axis—easy cone—easy plane spin-reorientation transition observed in epitaxial NdCo5 thin films. Starting at the high-temperature easy c -axis regime, the anisotropy constants are changed systematically corresponding to a lowering of the temperature of the system. The character of the domain walls and their profiles are analysed. The calculated domain configurations are compared to the experimentally observed temperature-dependent domain structure of an in-plane textured NdCo5 thin film.