Ultrafast spectroscopic probes of acoustic phonons in multiferroic thin films and semiconductor heterostructures
Închide
Articolul precedent
Articolul urmator
568 0
SM ISO690:2012
LLOYD-HUGHES, James. Ultrafast spectroscopic probes of acoustic phonons in multiferroic thin films and semiconductor heterostructures. In: Nanotechnologies and Biomedical Engineering, Ed. 2, 18-20 aprilie 2013, Chișinău. Technical University of Moldova, 2013, Editia 2, p. 30. ISBN 978-9975-62-343-8..
EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core
Nanotechnologies and Biomedical Engineering
Editia 2, 2013
Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
2, Chișinău, Moldova, 18-20 aprilie 2013

Ultrafast spectroscopic probes of acoustic phonons in multiferroic thin films and semiconductor heterostructures


Pag. 30-30

Lloyd-Hughes James
 
University of Warwick
 
Disponibil în IBN: 14 iunie 2019


Rezumat

The interaction of an ultrashort pulse of light with acoustic phonons provides a convenient and non-contact methodology to determine the elastic properties of nanomaterials. The epitaxial growth of thin films with thicknesses of a few hundred nanometres can create multiferroics with properties tailored by strain engineering. Ultrafast photoacoustic spectroscopy was used to determine the elastic constant and magnon response of the room temperature magnetoelectric bismuth ferrite. When applied to semiconductor quantum well heterostructures photoacoustic spectroscopy provides a precise probe of superlattice periodicity and interface quality.

Cuvinte-cheie
acoustic phonons, multiferroics, quantum cascade lasers, thin films, ultrafast spectroscopy