Departamento de Física

Facultad de Ciencia
Universidad de Santiago de Chile

Seminario de Física - Miércoles 21 de Marzo - 3:30 PM

03/21/2018 - 15:30

Título: "Controlling the rare-earth spin with voltages"

Dr. Alejandro León de CEDENNA

Abstract: The voltage control of magnetism has attracted much attention because it can save power to operate magnetic random access memories [1].

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Experimentally, both voltage-induced ferromagnetic resonance [2,3] and magnetic switching [4,5] have been realized

 [6]. However, a stronger
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coupling would be highly desirable for practical applications of voltage-controlled devices. Here we demonstrate that this can be achieved by employing the strong spin-orbit interaction of rare earth atoms and the large electric field gradients at insulator|metal interfaces.

[1] C. Song, et al. Progr. in Mat. Sc. 87, 33 (2017). 
[2] T. Nozaki, et al. Nat. Phys. 8, 491 (2012). 
[3] J. Zhu, et al. Phys. Rev. Lett. 108, 197203 (2012). 
[4] Y. Shiota, et al. Appl. Phys. Express 2, 063001 (2009). 
[5] S. Kanai, et al.Appl. Phys. Lett. 101, 122403 (2012). 
[6] Y. Suzuki, et al. Phil. Trans. R. Soc. A 369, 3658 (2011).

Miércoles 21 de marzo de 2018, a las 15:30 hrs.
Sala de Conferencias
Departamento de Física
Unidersidad de Santiago de Chile
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Doctorado en Ciencia con Mención en Física