Dynamical spin reorientation transition in orthoferrite NdFeO3 studied with terahertz time-domain spectroscopy

Author

Junjie Jiang ; Zuanming Jin ; Gaibei Song ; Xian Lin ; Guohong Ma ; Shixun Cao

Author_Institution

Dept. of Phys., Shanghai Univ., Shanghai, China

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

Abstract

Temperature dependence of FID signal emitted by AFM in NdFeO₃ is investigated by employing THz time-domain spectroscopy. Our results reveal that Γ₄→Γ₂₄ phase transition occurs around T₁=170 K, and both two phases have the same AFM resonant frequency of 0.485 THz. The frequency softening is observed for Γ₂₄→Γ₂ occurring around T₂=110 K.

Keywords

ferrites; magnetic transitions; neodymium compounds; spin dynamics; terahertz wave spectra; time-domain analysis; Γ₂₄→Γ₂ phase transition; Γ₄→Γ₂₄ phase transition; AFM resonant frequency; FID signal; NdFeO₃; atomic force microscopy; dynamical spin reorientation transition; frequency 0.485 THz; frequency softening; orthoferrite NdFeO₃; temperature 110 K; temperature 170 K; temperature dependence; terahertz time-domain spectroscopy; Crystals; Magnetic fields; Magnetic resonance; Spectroscopy; Temperature measurement; Time-domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on

Conference_Location

Mainz

Type

conf

DOI

10.1109/IRMMW-THz.2013.6665899

Filename

6665899