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Optical investigation of coherent and thermal phonons in high-Tcsuperconductors

✍ Scribed by O. V. Misochko

Book ID
110119446
Publisher
SP MAIK Nauka/Interperiodica
Year
2000
Tongue
English
Weight
59 KB
Volume
42
Category
Article
ISSN
1063-7834

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Femtosecond time-resolved reflectivity measurement is performed on YBa 2 Cu 3 O 7-Ξ΄ films. Coherent phonons of both the Ba-O and Cu-O modes are observed at frequencies of 3.4 and 4.3 THz, respectively. Amplitudes of both Ba-O and Cu-O modes are optically manipulated by using a pair of femtosecond pu