CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 9551 > Article
Paper
8 September 2015 Organic analogues of diluted magnetic semiconductors: bridging quantum chemistry to condensed matter physics
Madalina Furis, Naveen Rawat, Judy G. Cherian, Anthony Wetherby, Rory Waterman, Stephen McGill
Author Affiliations +
Proceedings Volume 9551, Spintronics VIII; 95512I (2015) https://doi.org/10.1117/12.2182321
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States
Abstract
The selective coupling between polarized photons and electronic states in materials enables polarization-resolved spectroscopy studies of exchange interactions, spin dynamics, and collective magnetic behavior of conduction electrons in semiconductors. Here we report on Magnetic Circular Dichroism (MCD) studies of magnetic properties of electrons in crystalline thin films of small molecule organic semiconductors. Specifically, the focus was on the magnetic exchange interaction properties of d-shell ions (Cu2+, Co2+ and Mn2+) metal phthalocyanine (Pc) thin films that one may think of as organic analogues of diluted magnetic semiconductors (DMS). These films were deposited in-house using a recently developed pen-writing method that results in crystalline films with macroscopic long range ordering and improved electronic properties, ideally suited for spectroscopy techniques.

Our experiments reveal that, in analogy to DMS, the extended π-orbitals of the Pc molecule mediate the spin exchange between highly localized d-like unpaired spins. We established that exchange mechanisms involve different electronic states in each species and/or hybridization between d-like orbitals and certain delocalized π-orbitals. Unprecedented 25T MCD and PL conducted in the unique 25T Split Florida HELIX magnet at the National High Magnetic Field Laboratory (NHMFL) will prove useful in probing these exchange interactions.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Madalina Furis, Naveen Rawat, Judy G. Cherian, Anthony Wetherby, Rory Waterman, and Stephen McGill "Organic analogues of diluted magnetic semiconductors: bridging quantum chemistry to condensed matter physics", Proc. SPIE 9551, Spintronics VIII, 95512I (8 September 2015); https://doi.org/10.1117/12.2182321
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 10 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Magnetism
Crystals
Molecules
Thin films
Magnetic semiconductors
Metals
Ions
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top