High temperature anisotropy of NdFeO3 determined using time-domain THz spectroscopy

Author

Constable, Evan ; Horvat, J. ; Cortie, D.L. ; Cheng, Zhongyuan ; Yuan, Song ; Cao, Shengjiao ; Lewis, R.A.

Author_Institution

Inst. for Supercond. & Electron. Mater., Univ. of Wollongong, Wollongong, NSW, Australia

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

Abstract

The temperature dependent anisotropic fields along two principal crystallographic axes (A_x and A_z) is calculated for the canted antiferromagnet neodymium iron oxide in the temperature range 300 - 470 K. The calculation is performed using the experimentally determined temperature dispersion of two orthogonal antiferromagnetic magnons, obtained via time-domain terahertz spectroscopy. The experiment demonstrates the potential use of THz spectroscopy for characterising magnetic materials and offers a complementary technique to traditional neutron and magnetic methods.

Keywords

antiferromagnetic materials; crystallography; ferrites; high-temperature effects; magnons; neodymium compounds; terahertz spectroscopy; NdFeO₃; antiferromagnet neodymium iron oxide; crystallographic axes; high temperature anisotropy; magnetic materials; orthogonal antiferromagnetic magnons; temperature 300 K to 470 K; temperature dependent anisotropic fields; temperature dispersion; time-domain terahertz spectroscopy; Iron; Magnetic resonance; Perpendicular magnetic anisotropy; Temperature dependence; Temperature distribution; Temperature measurement;

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.2013.6665932

Filename

6665932