Dressed Rabi oscillation in a crystalline organic radical

Autor:	Wilson, C. Blake, Edwards, Devin T., Clayton, Jessica A., Han, Songi, Sherwin, Mark S.
Rok vydání:	2019
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Zdroj:	Phys. Rev. Lett. 124, 047201 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.124.047201
Popis:	Free electron laser-powered pulsed electron paramagnetic resonance (EPR) experiments performed at 240 GHz / 8.56 T on the crystalline organic radical BDPA reveal a tip-angle dependent resonant frequency. Frequency shifts as large as 11 MHz (45 ppm) are observed during a single Rabi oscillation. We attribute the frequency shifts to a "dressing" of the nutation by spin-spin interactions. A nonlinear semi-classical model which includes a temperature- and sample-geometry-dependent demagnetizing field reproduces experimental results. Because experiments are performed without a cavity, radiation damping -- the most common nonlinear interaction in magnetic resonance -- is negligible in our experiments. Comment: 6 pages 4 figures; contains Supplemental Material
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1904.03578 Zobrazit plný text záznamu View this record from Arxiv