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Persistent URL	http://purl.org/net/epubs/work/65583
Record Status	Checked
Record Id	65583
Title	Importance of Spin-Orbit Interaction for the Electron Spin Relaxation in Organic Semiconductors
Contributors	L Nuccio (Queen Mary University of London), M Willis (Queen Mary University of London), L Schulz (Fribourg U.), S Fratini (Institut Néel-CNRS and Université Joseph Fourier), F Messina (Palermo U.), M D'Amico (Palermo U.), FL Pratt (STFC Rutherford Appleton Lab.), JS Lord (STFC Rutherford Appleton Lab.), I McKenzie (STFC Rutherford Appleton Lab.), M Loth (Kentucky U.), B Purushothaman (Kentucky U.), J Anthony (Kentucky U.), M Heeney (Imperial College London), RM Wilson (Queen Mary University of London), I Hernández (Queen Mary University of London), M Cannas (Palermo U.), K Sedlak (Paul Scherrer Institute), T Kreouzis (Queen Mary University of London), WP Gillin (Queen Mary University of London), C Bernhard (Fribourg U.), AJ Drew (Queen Mary University of London)
Abstract	Despite the great interest organic spintronics has recently attracted, there is only a partial understanding of the fundamental physics behind electron spin relaxation in organic semiconductors. Mechanisms based on hyperfine interaction have been demonstrated, but the role of the spin-orbit interaction remains elusive. Here, we report muon spin spectroscopy and time-resolved photoluminescence measurements on two series of molecular semiconductors in which the strength of the spin-orbit interaction has been systematically modified with a targeted chemical substitution of different atoms at a particular molecular site. We find that the spin-orbit interaction is a significant source of electron spin relaxation in these materials.
Organisation	ISIS , STFC , ISIS-HIFI
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Journal Article	Phys Rev Lett 110, no. 21 (2013): 216602.	doi:10.1103/PhysRevLett.110.216602		2013