Femtosecond dynamics of spin-dependent SHG response from NiO (001) |
| |
Authors: | O. Ney M. Trzeciecki W. Hübner |
| |
Affiliation: | (1) Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany, DE;(2) Institute of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland, PL |
| |
Abstract: | Based on a parameterized electronic many-body theory we calculate the spectrum of optical second-harmonic generation (SHG) on an antiferromagnetic (AF) surface: NiO (001). The occurrence of AF spectral lines is further exploited for the calculation of ultra-fast spin dynamics. This spin dynamics is observable in SHG. It is characterized by both a sharp drop of the AF signal within a few femtoseconds and a long persistence (up to nanoseconds) of the spin coherence. These two features constitute an ideal system for possible applications in both magnetic recording and quantum computing. Received: 16 October 2001 / Revised version: 21 March 2002 / Published online: 6 June 2002 |
| |
Keywords: | PACS: 78.47.+p 75.50.Ee 78.20.Ls 75.10.Dg |
本文献已被 SpringerLink 等数据库收录! |
|