Avviso di seminario
PhD Filippo Troiani
CNR Istituto Nanoscienze
ELECTRIC CONTROL OF SPIN QUBITS: FROM SEMICONDUCTOR QUANTUM DOTS TO MAGNETIC MOLECULES
Oscillating magnetic fields represent the tool of election for manipulating electron spins. Electric fields,
however, are emerging as an alternative and effective means for addressing spins at the nanoscale, with
a potential impact on the development of spin-based quantum technologies. In the first part of this seminar,
after a brief overview of the electric manipulation of spin qubits in semiconductor quantum dots, I will focus
on the case of hole-based qubits defined in industrial MOSFETs [1]. The second part of the seminar will be
devoted to the electrical manipulation of molecular spins, and specifically of degrees of freedom such as the
spin chirality and the partial spin sum in magnetically frustrated systems [2]. After a discussion of general
theoretical aspects, I will report on the first observation of spin-electric transitions in polynuclear
complexes, and specifically in iron-based triangles [3].
[1] L. Bellentani, M. Bina, S. Bonen, A. Secchi, A. Bertoni, S. P. Voinigescu, A. Padovani, L. Larcher, and F. Troiani, Phys. Rev. Applied 16,
054034 (2021).
[2] M. Trif, F. Troiani, D. Stepanenko, and D. Loss, Phys. Rev. Lett. 101, 217201 (2008).
[3] F. Le Mardelé, I. Mohelský, M. Orlita, P. Turek, F. Troiani, A. K. Boudalis (2024).
il giorno 12/03/2024 dalle 11:00 alle 12:00, presso Aula Magna del Dipartimento di Fisica e Astronomia.
L'invito è esteso a tutto il personale interessato, che è caldamente invitato a partecipare.