Influence of the electric field on heat pulse propagation in SrTiO3.

Viktor D. Kagan; Aexei V. Suslov

doi:10.1080/00150199408007493

Influence of the electric field on heat pulse propagation in SrTiO₃.

Viktor D. Kagan
, Aexei V. Suslov

Research output: Contribution to journal › Article › peer-review

Abstract

The first application of the heat pulse method for the investigation of acoustic phonons propagation in incipient ferroelectric SrTiO₃ at temperatures 1.7-3.4K is presented. Diffusion propagation of nonequilibrium phonons has been observed. In an external electric field (up to 20 kV/sm) an arrival time of the maximum of the nonequilibrium phonons flux decreases and a signal amplitude increases. In the presenoe of strong electrio field (E>3kV/cm) the relative change of both 2/1 these values is proportional to E2/3. We suggest that the phonon transparency of domain boundaries increases in the external eleotric field.

Original language	English
Pages (from-to)	115-119
Number of pages	5
Journal	Ferroelectrics
Volume	155
Issue number	1
DOIs	https://doi.org/10.1080/00150199408007493
State	Published - May 1994
Externally published	Yes

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title = "Influence of the electric field on heat pulse propagation in SrTiO3.",

abstract = "The first application of the heat pulse method for the investigation of acoustic phonons propagation in incipient ferroelectric SrTiO3 at temperatures 1.7-3.4K is presented. Diffusion propagation of nonequilibrium phonons has been observed. In an external electric field (up to 20 kV/sm) an arrival time of the maximum of the nonequilibrium phonons flux decreases and a signal amplitude increases. In the presenoe of strong electrio field (E>3kV/cm) the relative change of both 2/1 these values is proportional to E2/3. We suggest that the phonon transparency of domain boundaries increases in the external eleotric field.",

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year = "1994",

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N2 - The first application of the heat pulse method for the investigation of acoustic phonons propagation in incipient ferroelectric SrTiO3 at temperatures 1.7-3.4K is presented. Diffusion propagation of nonequilibrium phonons has been observed. In an external electric field (up to 20 kV/sm) an arrival time of the maximum of the nonequilibrium phonons flux decreases and a signal amplitude increases. In the presenoe of strong electrio field (E>3kV/cm) the relative change of both 2/1 these values is proportional to E2/3. We suggest that the phonon transparency of domain boundaries increases in the external eleotric field.

AB - The first application of the heat pulse method for the investigation of acoustic phonons propagation in incipient ferroelectric SrTiO3 at temperatures 1.7-3.4K is presented. Diffusion propagation of nonequilibrium phonons has been observed. In an external electric field (up to 20 kV/sm) an arrival time of the maximum of the nonequilibrium phonons flux decreases and a signal amplitude increases. In the presenoe of strong electrio field (E>3kV/cm) the relative change of both 2/1 these values is proportional to E2/3. We suggest that the phonon transparency of domain boundaries increases in the external eleotric field.

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Influence of the electric field on heat pulse propagation in SrTiO₃.

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