Thermal diffusivity measurement of YBa2Cu3O7−x thin film with a picosecond thermoreflectance technique

✍ Scribed by Y.Y. Kim; H.A. Alwi; Q. Huang; R. Abd-Shukor; C.F. Tsai; H. Wang; K.W. Kim; D.G. Naugle; S. Krishnaswamy

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 439 KB
• Volume: 470
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2010.02.016

✦ Synopsis

The thermal diffusivity of YBa 2 Cu 3 O 7Àx (YBCO) film was measured using the optical pump-probe method. A theoretical finite-difference model was employed to calculate the diffusivity value, and the best fit for the c-axis oriented YBCO film showed an average thermal diffusivity of 0.25 ± 0.05 mm 2 s À1 . The obtained result is compared to previous reports measured using various methods.