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Title: Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators

Abstract

Separating the influence of hyperfine from spin-orbit interactions in spin-dependent carrier recombination and dissociation processes necessitates magnetic resonance spectroscopy over a wide range of frequencies. For this, we have designed compact and versatile coplanar waveguide resonators for continuous-wave electrically detected magnetic resonance and tested these on organic light-emitting diodes. By exploiting both the fundamental and higher-harmonic modes of the resonators, we cover almost five octaves in resonance frequency within a single setup. The measurements with a common π-conjugated polymer as the active material reveal small but non-negligible effects of spin-orbit interactions, which give rise to a broadening of the magnetic resonance spectrum with increasing frequency.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [2];  [2];  [1];  [3];  [1]
+ Show Author Affiliations
  1. Univ. of Utah, Salt Lake City, UT (United States). Dept. of Physics and Astronomy
  2. Univ. of Utah, Salt Lake City, UT (United States). Dept. of Electrical and Computer Engineering
  3. Univ. of Utah, Salt Lake City, UT (United States). Dept. of Physics and Astronomy; Univ. of Regensburg (Germany). Inst. of Experimental and Applied Physics
Publication Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1467861
Alternate Identifier(s):
OSTI ID: 1321033
Grant/Contract Number:  
SC0000909; 1121252
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 10; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 42 ENGINEERING; microwave spectra; magnetic resonance; microwave circuits; electron paramagnetic resonance spectroscopy; microwaves; spin orbit interactions; hyperfine structure; organic light emitting diodes; magnetic fields; coupled resonators

Citation Formats

Joshi, G., Miller, R., Ogden, L., Kavand, M., Jamali, S., Ambal, K., Venkatesh, S., Schurig, D., Malissa, H., Lupton, J. M., and Boehme, C. Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators. United States: N. p., 2016. Web. doi:10.1063/1.4960158.
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Joshi, G., Miller, R., Ogden, L., Kavand, M., Jamali, S., Ambal, K., Venkatesh, S., Schurig, D., Malissa, H., Lupton, J. M., & Boehme, C. Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators. United States. https://doi.org/10.1063/1.4960158
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Joshi, G., Miller, R., Ogden, L., Kavand, M., Jamali, S., Ambal, K., Venkatesh, S., Schurig, D., Malissa, H., Lupton, J. M., and Boehme, C. Wed . "Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators". United States. https://doi.org/10.1063/1.4960158. https://www.osti.gov/servlets/purl/1467861.
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@article{osti_1467861,
title = {Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators},
author = {Joshi, G. and Miller, R. and Ogden, L. and Kavand, M. and Jamali, S. and Ambal, K. and Venkatesh, S. and Schurig, D. and Malissa, H. and Lupton, J. M. and Boehme, C.},
abstractNote = {Separating the influence of hyperfine from spin-orbit interactions in spin-dependent carrier recombination and dissociation processes necessitates magnetic resonance spectroscopy over a wide range of frequencies. For this, we have designed compact and versatile coplanar waveguide resonators for continuous-wave electrically detected magnetic resonance and tested these on organic light-emitting diodes. By exploiting both the fundamental and higher-harmonic modes of the resonators, we cover almost five octaves in resonance frequency within a single setup. The measurements with a common π-conjugated polymer as the active material reveal small but non-negligible effects of spin-orbit interactions, which give rise to a broadening of the magnetic resonance spectrum with increasing frequency.},
doi = {10.1063/1.4960158},
journal = {Applied Physics Letters},
number = 10,
volume = 109,
place = {United States},
year = {Wed Sep 07 00:00:00 EDT 2016},
month = {Wed Sep 07 00:00:00 EDT 2016}
}
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https://doi.org/10.1063/1.4960158
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Works referenced in this record:

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    Works referencing / citing this record:

    Electric Field Effects on Photoluminescence‐Detected Magnetic Resonance of a π‐Conjugated Polymer
    journal, January 2020

    • Baird, Douglas L.; Nahlawi, Adnan; Crossley, Kenneth
    • physica status solidi (b), Vol. 257, Issue 5
    • DOI: 10.1002/pssb.201900493

    Development of multi-frequency ESR/EDMR system using a rectangular cavity equipped with waveguide window
    journal, November 2016

    • Fukuda, Kunito; Asakawa, Naoki
    • Review of Scientific Instruments, Vol. 87, Issue 11
    • DOI: 10.1063/1.4967712

    Electrically detected magnetic resonance study of barium and nitric oxide treatments of 4H-SiC metal-oxide-semiconductor field-effect transistors
    journal, October 2019

    • Ashton, J. P.; Lenahan, P. M.; Lichtenwalner, D. J.
    • Journal of Applied Physics, Vol. 126, Issue 14
    • DOI: 10.1063/1.5120704

    Quantitative inverse spin Hall effect detection via precise control of the driving-field amplitude
    journal, April 2017

    OLEDs as models for bird magnetoception: detecting electron spin resonance in geomagnetic fields
    text, January 2019

    • Grünbaum, Tobias; Milster, Sebastian; Kraus, Hermann
    • Universität Regensburg
    • DOI: 10.5283/epub.41348

    Tuning effective hyperfine fields in PEDOT:PSS thin films by doping
    text, January 2018

    Magnetically Tunable Organic Semiconductors with Superparamagnetic Nanoparticles
    preprint, January 2019

    OLEDs as models for bird magnetoception: detecting electron spin resonance in geomagnetic fields
    text, January 2019

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