Magnetoelastoelectric coupling in core-shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation
Abstract
Magnetoelastoelectric coupling in an engineered biphasic multiferroic nanocomposite enables a novel magnetic field direction-defined propagation control of terahertz (THz) waves. These core–shell nanoparticles are comprised of a ferromagnetic cobalt ferrite core and a ferroelectric barium titanate shell. Furthermore, an assembly of these nanoparticles, when operated in external magnetic fields, exhibits a controllable amplitude modulation when the magnetic field is applied antiparallel to the THz wave propagation direction; yet the same assembly displays an additional phase modulation when the magnetic field is applied along the propagation direction. And while field-induced magnetostriction of the core leads to amplitude modulation, phase modulation is a result of stress-mediated piezoelectricity of the outer ferroelectric shell.
- Authors:
-
[2];
- Univ. of Texas, San Antonio, TX (United States). Dept. of Electrical and Computer Engineering
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); National Institutes of Health (NIH)
- OSTI Identifier:
- 1392884
- Report Number(s):
- LA-UR-17-25491
Journal ID: ISSN 2040-3364 ; 2040-3372 (Electronic)
- Grant/Contract Number:
- AC52-06NA25396; W911NF-12-1-0082; 1002380; G12MD007591
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nanoscale
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 35; Journal ID: ISSN 2040-3364
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Material Science
Citation Formats
Dutta, Moumita, Prasankumar, Rohit Prativadi, Natarajan, Kamaraju, Betal, Soutik, Bhalla, Amar S., and Guo, Ruyan. Magnetoelastoelectric coupling in core-shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation. United States: N. p., 2017.
Web. doi:10.1039/C7NR03504G.
Dutta, Moumita, Prasankumar, Rohit Prativadi, Natarajan, Kamaraju, Betal, Soutik, Bhalla, Amar S., & Guo, Ruyan. Magnetoelastoelectric coupling in core-shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation. United States. https://doi.org/10.1039/C7NR03504G
Dutta, Moumita, Prasankumar, Rohit Prativadi, Natarajan, Kamaraju, Betal, Soutik, Bhalla, Amar S., and Guo, Ruyan. Mon .
"Magnetoelastoelectric coupling in core-shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation". United States. https://doi.org/10.1039/C7NR03504G. https://www.osti.gov/servlets/purl/1392884.
@article{osti_1392884,
title = {Magnetoelastoelectric coupling in core-shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation},
author = {Dutta, Moumita and Prasankumar, Rohit Prativadi and Natarajan, Kamaraju and Betal, Soutik and Bhalla, Amar S. and Guo, Ruyan},
abstractNote = {Magnetoelastoelectric coupling in an engineered biphasic multiferroic nanocomposite enables a novel magnetic field direction-defined propagation control of terahertz (THz) waves. These core–shell nanoparticles are comprised of a ferromagnetic cobalt ferrite core and a ferroelectric barium titanate shell. Furthermore, an assembly of these nanoparticles, when operated in external magnetic fields, exhibits a controllable amplitude modulation when the magnetic field is applied antiparallel to the THz wave propagation direction; yet the same assembly displays an additional phase modulation when the magnetic field is applied along the propagation direction. And while field-induced magnetostriction of the core leads to amplitude modulation, phase modulation is a result of stress-mediated piezoelectricity of the outer ferroelectric shell.},
doi = {10.1039/C7NR03504G},
journal = {Nanoscale},
number = 35,
volume = 9,
place = {United States},
year = {Mon Aug 07 00:00:00 EDT 2017},
month = {Mon Aug 07 00:00:00 EDT 2017}
}
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