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MA: Fachverband Magnetismus
MA 31: Poster II
MA 31.1: Poster
Mittwoch, 19. März 2025, 17:00–19:30, P1
Near-Room-Temperature Compensation Temperature In Terbium Iron Garnet Thin Films — •Mehak Loyal, Akashdeep Akashdeep, Mathias Kläui, and Gerhard Jakob — Institute of Physics, Johannes Gutenberg University Mainz, Staudingerweg 7, 55128 Mainz, Germany
Rare-earth iron garnets (REIGs) with perpendicular magnetic anisotropy (PMA) have emerged as promising materials for spintronic applications. The compensation temperature (Tcomp), where the net magnetization for the ferrimagnet becomes zero, plays a crucial role in determining potential application. While bulk REIGs have a Tcomp well below room temperature, researchers have shown that it can be tuned in thin films. Tb3Fe5O12 (TbIG) with bulk compensation temperature ∼240 K, in particular has gained interest as recent report shows a near-room-temperature Tcomp for TbIG thin films.
We investigate the factors that tune the compensation temperature (Tcomp) of TbIG thin films to near-room-temperature. This would have significant implications for the development of spintronics applications, potentially enabling more efficient and stable operation at ambient conditions. PMA TbIG thin films are deposited on (111)-oriented Gd3Ga5O12 (GGG) substrates using pulsed laser deposition (PLD). The magnetization reversal of TbIG thin films at different temperatures are probed using transverse magneto-resistance measurement. The study contributes to the broader understanding of REIGs and paves the way for integration into practical spintronic applications.
Keywords: Perpendicular magnetic anisotropy; Rare-earth iron garnet; Compensation temperature