Published June 2011 | Version v1
Journal article

Ultrafast zone-center coherent lattice dynamics in ferroelectric lithium tantalate

  • 1. Materials and Structures Laboratory, Tokyo Institute of Technology, R3-10, 4259 Nagatsuta, Yokohama 226-8503 (Japan)
  • 2. Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow region (Russian Federation)

Description

Femtosecond time-resolved pump-probe experiments were carried out to study ultrafast lattice dynamics of ferroelectric lithium tantalate. Both the fully symmetric (A1 mode) and doubly degenerate (E mode) coherent phonons at the center of the Brillouin zone were excited via impulsive stimulated Raman scattering, as confirmed by the excitation intensity dependence.

Availability note (English)

Available from http://dx.doi.org/10.1088/1468-6996/12/3/034409

Additional details

Publishing Information

Journal Title
Science and Technology of Advanced Materials
Journal Volume
12
Journal Issue
3
Journal Page Range
[4 p.]
ISSN
1468-6996

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43012961
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
BRILLOUIN ZONES; FERROELECTRIC MATERIALS; LITHIUM; RAMAN EFFECT
Descriptors DEC
ALKALI METALS; DIELECTRIC MATERIALS; ELEMENTS; MATERIALS; METALS; ZONES