Magnetization dynamics and the Mn3+ d-d excitation of hexagonal HoMnO3 single crystals using wavelength-tunable time-resolved femtosecond spectroscopy

H. C. Shih, T. H. Lin, Chih-Wei Luo, Jiunn-Yuan Lin, T. M. Uen, Jenh-Yih Juang, Kaung-Hsiung Wu, J. M. Lee, J. M. Chen, T. Kobayashi

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We analyze the photo-induced carrier and magnetization dynamics in antiferromagnetic (AFM) HoMnO3 single crystals, delineated by wavelength-dependent femtosecond spectroscopy. The emergence of long-range and short-range magnetic order are unambiguously revealed in association with an abnormal blueshift of Mn3+ 3d level around the Néel temperature and the slope variation in the temperature-dependent transient reflectivity change (ΔR/R) near the Néel transition, respectively. Furthermore, the disturbance (in ps time scale) of the AFM ordering and its reordering time (in a few 100 ps time scale) are clearly identified in the negative ΔR/R.

Original languageEnglish
Article number024427
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number2
DOIs
StatePublished - 6 Aug 2009

Fingerprint Dive into the research topics of 'Magnetization dynamics and the Mn3+ d-d excitation of hexagonal HoMnO3 single crystals using wavelength-tunable time-resolved femtosecond spectroscopy'. Together they form a unique fingerprint.

Cite this