New magnetic phases in thin terbium films

New magnetic phases in thin terbium films

We report a theoretical investigation of new magnetic phases of thin terbium (Tb) films in the temperature interval between 220 K and 280 K, and under external magnetic field strengths ranging from 50 Oe to 1 kOe. We show that surface effects may produce relevant changes in the helimagnetic phase, s...

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Veröffentlicht in:AIP advances 2020-01, Vol.10 (1), p.015006-015006-4
Hauptverfasser: Sales, F. H. S., Oliveira, L. L., Dantas, A. L., Carriço, A. S.
Format: Artikel
Sprache:eng
Schlagworte:
Nucleation
Phases
Terbium
Thin films
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Beschreibung
Zusammenfassung:We report a theoretical investigation of new magnetic phases of thin terbium (Tb) films in the temperature interval between 220 K and 280 K, and under external magnetic field strengths ranging from 50 Oe to 1 kOe. We show that surface effects may produce relevant changes in the helimagnetic phase, such as the nucleation of alternating-helix phases. Changes in the exchange energy balance near the surface, favor the alignment with the external field and the nucleation of the alternating-helix phase.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.5129877