Monday, June 25th, 11 a.m, room 434A
“Towards organic spintronics: embedded many-body perturbation approach for metal-molecule spinterface”
by Jing Li, condensed matter theory group, Neel Institute, Grenoble
Abstract
Organic spintronics is a young and rising research field targeting at realizing spintronic devices by using organic material benefiting from its long spin lifetime. Recent experiments show that organic material not only plays an important role as spin transport media but also influences significantly the spin injection from a ferromagnet to the organic material [1-2]. This feature provides a handle to control spin injection by tuning the conformation of spinterface, and promotes “spinterface engineering”, aiming at design or searching for a robust spinterface for efficient spin injection. Spin injection properties are governed by the electronic structure of spinterface. In this talk, I will discuss a predictive model to be developed for spinterface based on embedded many-body perturbation theory [3-5], which will be helpful for the development of organic electronics by quantitative determining the electronic structure and optical properties of spinterfaces.
[1] Z.H. Xiong, Di Wu, Z. Valy Vardeny, and Jing Shi, Giant magnetoresistance in organic spin-valve, Nature 427, 821 (2004)
[2] C. Barraud, P. Seneor, R. Mattana, et al, Unravelling the role of the interface for spin injection into organic semiconductors, Nat. Phys. 6, 615 (2010)
[3] Jing Li, Gabriele D’Avino, Ivan Duchemin, David Beljonne, and Xavier Blase, Combining the Many-Body GW Formalism with Classical Polarizable Models: Insights on the Electronic Structure of Molecular Solids, The Journal of Physical Chemistry Letters, 7, 2814, (2016)
[4] Jing Li, Gabriele D’Avino, Anton Pershin, Denis Jacquemin, Ivan Duchemin, David Beljonne, and Xavier Blase, Correlated electron-hole mechanism for molecular doping in organic semiconductors, Physical Review Material, 1, 025602, (2017)
[5] Jing Li, Gabriele D’Avino, Ivan Duchemin, David Beljonne, and Xavier Blase, Accurate determination of charged excitations in molecular solids from embedded many-body perturbation theory, Physical Review B, 97, 035108, (2018)
