electrically detected magnetic resonance
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2021 ◽  
Vol 130 (6) ◽  
pp. 065701
Author(s):  
Elias B. Frantz ◽  
David J. Michalak ◽  
Nicholas J. Harmon ◽  
Eric M. Henry ◽  
Stephen J. Moxim ◽  
...  

2021 ◽  
Vol 129 (8) ◽  
pp. 083903
Author(s):  
J. P. Ashton ◽  
B. R. Manning ◽  
W. R. Barker ◽  
P. M. Lenahan

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. Jamali ◽  
V. V. Mkhitaryan ◽  
H. Malissa ◽  
A. Nahlawi ◽  
H. Popli ◽  
...  

AbstractElectron and hole spins in organic light-emitting diodes constitute prototypical two-level systems for the exploration of the ultrastrong-drive regime of light-matter interactions. Floquet solutions to the time-dependent Hamiltonian of pairs of electron and hole spins reveal that, under non-perturbative resonant drive, when spin-Rabi frequencies become comparable to the Larmor frequencies, hybrid light-matter states emerge that enable dipole-forbidden multi-quantum transitions at integer and fractional g-factors. To probe these phenomena experimentally, we develop an electrically detected magnetic-resonance experiment supporting oscillating driving fields comparable in amplitude to the static field defining the Zeeman splitting; and an organic semiconductor characterized by minimal local hyperfine fields allowing the non-perturbative light-matter interactions to be resolved. The experimental confirmation of the predicted Floquet states under strong-drive conditions demonstrates the presence of hybrid light-matter spin excitations at room temperature. These dressed states are insensitive to power broadening, display Bloch-Siegert-like shifts, and are suggestive of long spin coherence times, implying potential applicability for quantum sensing.


2020 ◽  
Vol 67 (7) ◽  
pp. 1669-1673
Author(s):  
Nicholas J. Harmon ◽  
Stephen R. Mcmillan ◽  
James P. Ashton ◽  
Patrick M. Lenahan ◽  
Michael E. Flatte

2020 ◽  
Vol 704 (1) ◽  
pp. 17-23
Author(s):  
Yukari Masuno ◽  
Yusuke Kitami ◽  
Kunito Fukuda ◽  
Teruo Kanki ◽  
Hidekazu Tanaka ◽  
...  

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