Premium
Electrical detection of coherent spin pair oscillations in ZnPc devices
Author(s) -
Schaefer S.,
Saremi S.,
Fostiropoulos K.,
Behrends J.,
Lips K.,
Harneit W.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200879635
Subject(s) - microwave , spin (aerodynamics) , continuous wave , larmor precession , absorption (acoustics) , condensed matter physics , chemistry , spin wave , coupling (piping) , resonance (particle physics) , atomic physics , physics , optoelectronics , materials science , ferromagnetism , optics , laser , magnetic field , quantum mechanics , thermodynamics , metallurgy
We investigated the organic device ITO/ZnPc/Al with continuous wave and pulsed electrically detected magnetic resonance (cw‐EDMR/p‐EDMR). Resonant microwave absorption of the sample leads to current changes that can be explained by the theory of spin dependent recombination of localized spin carriers. The coherent spin motion during the microwave pulse shows two frequency components, which can be attributed to spin pairs with large and small Larmor separation. This is supported by the analysis of the cw‐EDMR spectrum, when taking into account exchange coupling between the spin pair partners. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)