Terahertz magnetoconductivity of magnetoresistive self-assembled (La0.7Sr0.3MnO3)0.5:(ZnO)0.5 nanocomposites

Author

Lloyd-Hughes, James ; Jones, Samuel P. P. ; MacManus-Driscoll, J.L. ; Bi, Zhen ; Jia, Qianghuai

Author_Institution

Dept. of Phys., Univ. of Warwick, Coventry, UK

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

1

Abstract

Terahertz time-domain spectroscopy was used to probe the magnetoconductivity of nanocolumns of the colossal magnetoresistance compound La_0.7Sr_0.3MnO₃ strained by a ZnO scaffold. The terahertz conductivity of the nanocomposite increased rapidly below the metal-insulator transition. A magnetic field enhanced the conductivity, particularly close to the metal-insulator transition.

Keywords

II-VI semiconductors; colossal magnetoresistance; lanthanum compounds; metal-insulator transition; nanocomposites; nanofabrication; self-assembly; strontium compounds; terahertz wave spectra; wide band gap semiconductors; zinc compounds; (La_0.7Sr_0.3MnO₃)_0.5:(ZnO)_0.5; colossal magnetoresistance compound; magnetic field; magnetoresistive self-assembled nanocomposites; metal-insulator transition; nanocolumn magnetoconductivity; terahertz magnetoconductivity; terahertz time-domain spectroscopy; Colossal magnetoresistance; Conductivity; Magnetic domains; Magnetic fields; Magnetic tunneling; Nanocomposites; Spectroscopy;

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.2013.6665806

Filename

6665806