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Magnetic and all-optical switching properties of amorphous TbxCo100-x alloys

Ciuciulkaite, Agne, MSc, 1991- (author)
Uppsala universitet,Materialfysik
Mishra, Kshiti (author)
Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands.
Moro, Marcos V. (author)
Uppsala universitet,Tillämpad kärnfysik
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Chioar, Ioan-Augustin (author)
Uppsala universitet,Materialfysik
Rowan-Robinson, Richard M. (author)
Uppsala universitet,Materialfysik,Univ Sheffield, Dept Mat Sci & Engn, Sheffield, S Yorkshire, England.
Parchenko, Sergii (author)
Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
Kleibert, Armin (author)
Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
Lindgren, Bengt (author)
Uppsala universitet,Materialfysik
Andersson, Gabriella, 1972- (author)
Uppsala universitet,Materialfysik
Davies, Carl S. (author)
Radboud Univ Nijmegen, FELIX Lab, Toernooiveld 7, NL-6525 ED Nijmegen, Netherlands.
Kimel, Alexey (author)
Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands.
Berritta, Marco (author)
Uppsala universitet,Materialteori
Oppeneer, Peter M. (author)
Uppsala universitet,Materialteori
Kirilyuk, Andrei (author)
Radboud Univ Nijmegen, FELIX Lab, Toernooiveld 7, NL-6525 ED Nijmegen, Netherlands.
Kapaklis, Vassilios, 1978- (author)
Uppsala universitet,Materialfysik
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 (creator_code:org_t)
American Physical Society (APS), 2020
2020
English.
In: Physical Review Materials. - : American Physical Society (APS). - 2475-9953. ; 4:10
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Amorphous TbxCo100-x magnetic alloys exhibit a list of intriguing properties, such as perpendicular magnetic anisotropy, high magneto-optical activity, and magnetization switching using ultrashort optical pulses. Varying the Tb:Co ratio in these alloys allows for tuning properties such as the saturation magnetic moment, coercive field, and the performance of light-induced magnetization switching. In this paper, we investigate the magnetic, optical, and magneto-optical properties of various TbxCo100-x thin-film alloy compositions. We report on the effect the choice of different seeding layers has on the structural and magnetic properties of TbxCo100-x layers. We also demonstrate that for a range of alloys, deposited on fused silica substrates, with Tb content of 24-30 at. %, helicity-dependent all-optical switching of magnetization can be achieved, albeit in a multishot framework. We explain this property to arise from the helicity-dependent laser-induced magnetization on the Co sublattice due to the inverse Faraday effect. Our paper provides an insight into material aspects for future potential hybrid magnetoplasmonic TbCo-based architectures.

Subject headings

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

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