Writing, reading and transferring spins via electrical charges: moving towards ultra-fast and green computing

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• Dr. Chiara Ciccarelli, University of Cambridge, UK
• Wednesday 19 June 2019, 14:00-15:00
• Mott Seminar Room (531), Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Dr Kaveh Delfanazari.

SOTs emerge from the spin-charge locking established by the break of spacial inversion symmetry. This break can occur at the interface in a multilayer heterostructure or within the unit cell of a ferromagnet. In this talk I will discuss my studies on SOTs [1] and on their reciprocal effect, magnonic charge pumping [2], in inversion asymmetric ferromagnets. I will also discuss some new prospects where the break of inversion symmetry acts as a linking element that couples two states of matter traditionally considered incompatible, ferromagnetism and BCS superconductivity [3]. In the second part of the talk, I will focus on our efforts to move our spintronics studies towards ultra-fast timescales particularly focusing on the picosecond readout of an antiferromagnetic state via THz emission spectroscopy.

1. C. Ciccarelliet al., Nature Physics12, 855 (2016). 2. C. Ciccarelli et al., Nature Nanotechnology 10, 50 (2015). 3. K.R. Jean, C. Ciccarelli et al., Nature Materials 17, 499 (2018).

This talk is part of the Semiconductor Physics Group Seminars series.

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