Terahertz Characterization of Charge Carrier Dynamics in 3D Dirac Semi-metal Cd3As2Nanowires

Y. Saboon, D. Damry, Chelsea Q. Xia, P. Schonherr, X. Liu, Thorsten Hesjedal, L. M. Herz, Michael B. Johnston, J. L. Boland

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Optical Pump Terahertz Probe (OPTP) spectroscopy is a well-established measurement technique with which charge-carrier dynamics of semiconductor nanowires (NW) can be extracted in a noncontact manner. Here in this work, we employ OPTP spectroscopy for measuring temperaturedependent photoconductivity spectra of 3D Dirac Cd3As2 semimetal nanowires, revealing a high Extrinsic carrier concentration of ∼ 2.0×1017cm-3 and ultrahigh carrier mobility of up to ~ 13×103 cm2V-1s-1 at a temperature of 5 K.

Original languageEnglish
Title of host publicationIRMMW-THz 2023 - 48th Conference on Infrared, Millimeter, and Terahertz Waves
Subtitle of host publicationConference Program
PublisherIEEE Computer Society
Number of pages2
ISBN (Electronic)9798350336603
ISBN (Print)9798350336610
DOIs
Publication statusPublished - 31 Oct 2023
Event48th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2023 - Montreal, Canada
Duration: 17 Sept 202322 Sept 2023

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
PublisherIEEE
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference48th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2023
Country/TerritoryCanada
CityMontreal
Period17/09/2322/09/23

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