Spectral dependence of photoinduced spin precession in DyFeO3

Autor:	Iida, Ryugo, Satoh, Takuya, Shimura, Tsutomu, Kuroda, Kazuo, Ivanov, B. A., Tokunaga, Yusuke, Tokura, Yoshinori
Rok vydání:	2010
Předmět:	Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 84 (2011) 064402
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.84.064402
Popis:	Spin precession was nonthermally induced by an ultrashort laser pulse in orthoferrite DyFeO3 with a pump-probe technique. Both circularly and linearly polarized pulses led to spin precessions; these phenomena are interpreted as the inverse Faraday effect and the inverse Cotton-Mouton effect, respectively. For both cases, the same mode of spin precession was excited; the precession frequencies and polarization were the same, but the phases of oscillations were different. We have shown theoretically and experimentally that the analysis of phases can distinguish between these two mechanisms. We have demonstrated experimentally that in the visible region, the inverse Faraday effect was dominant, whereas the inverse Cotton-Mouton effect became relatively prominent in the near-infrared region. Comment: 27 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1009.4743 Zobrazit plný text záznamu View this record from Arxiv