This paper proposes a protocol for the electrical detection of a magnetic skyrmion via the change of the tunneling magnetoresistive (TMR) signal in a three-terminal device. This approach combines alternating spin-transfer torque from both spin-filtering (due to a perpendicular polarizer) and spin-Hall effect with the TMR signal. Micromagnetic simulations, used to test and verify such working principle, show that there exists a frequency region particularly suitable for this achievement. This result can be at the basis of the design of a TMR based read-out for skyrmion detection, overcoming the difficulties introduced by the thermal drift of the skyrmion once nucleated.

Electrical detection of single magnetic skyrmion at room temperature / Tomasello, Riccardo; Ricci, Marco; Burrascano, Pietro; Puliafito, Vito; Carpentieri, Mario; Finocchio, Giovanni. - In: AIP ADVANCES. - ISSN 2158-3226. - 7:5(2017). [10.1063/1.4975998]

Electrical detection of single magnetic skyrmion at room temperature

Tomasello, Riccardo;Puliafito, Vito;CARPENTIERI, Mario;
2017-01-01

Abstract

This paper proposes a protocol for the electrical detection of a magnetic skyrmion via the change of the tunneling magnetoresistive (TMR) signal in a three-terminal device. This approach combines alternating spin-transfer torque from both spin-filtering (due to a perpendicular polarizer) and spin-Hall effect with the TMR signal. Micromagnetic simulations, used to test and verify such working principle, show that there exists a frequency region particularly suitable for this achievement. This result can be at the basis of the design of a TMR based read-out for skyrmion detection, overcoming the difficulties introduced by the thermal drift of the skyrmion once nucleated.
2017
Electrical detection of single magnetic skyrmion at room temperature / Tomasello, Riccardo; Ricci, Marco; Burrascano, Pietro; Puliafito, Vito; Carpentieri, Mario; Finocchio, Giovanni. - In: AIP ADVANCES. - ISSN 2158-3226. - 7:5(2017). [10.1063/1.4975998]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/106033
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