Effective Field and the Bloch-Siegert Shift at Bihromatic Excitation of Multiphoton EPR
| dc.creator | Saiko, A. P. | |
| dc.creator | Fedoruk, G. G. | |
| dc.creator | Markevich, S. A. | |
| dc.date | 2006-10-03 | |
| dc.date.accessioned | 2026-07-07T07:27:19Z | |
| dc.date.available | 2026-07-07T07:27:19Z | |
| dc.description | The dynamics of multiphoton transitions in a two-level spin system excited by transverse microwave and longitudinal RF fields with the frequencies w_{mw} and w_{rf}, respectively, is analyzed. The effective time-independent Hamiltonian describing the "dressed" spin states of the "spin + bichromatic field" system is obtained by using the Krylov-Bogoliubov-Mitropolsky averaging method. The direct detection of the time behavior of the spin system by the method of nonstationary nutations makes it possible to identify the multiphoton transitions for resonances w_{0} = w_{mw} + rw_{rf} (w_{0} is the central frequency of the EPR line, r = 1, 2), to measure the amplitudes of the effective fields of these transitions, and to determine the features generated by the inhomogeneous broadening of the EPR line. It is shown that the Bloch-Siegert shifts for multiphoton resonances at the inhomogeneous broadening of spectral lines reduce only the nutation amplitude but do not change their frequencies. | |
| dc.description | 6 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0610063 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0610063 | |
| dc.identifier | JETP Letters, Vol. 84, No. 3, pp. 130-135 (2006) [ Pis'ma Zh. Eksp. Teor. Fiz., Vol. 84, No. 3, pp. 159-164 (2006)] | |
| dc.identifier | doi:10.1134/S0021364006150070 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/117337 | |
| dc.subject | Materials Science | |
| dc.title | Effective Field and the Bloch-Siegert Shift at Bihromatic Excitation of Multiphoton EPR | |
| dc.type | text |