SPring-8, the large synchrotron radiation facility

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Phonon observation strongly related to superconductivity (Press Release)

Release Date
18 May, 2007
  • BL35XU (High Resolution lnelastic Scattering)
Dr. M. Hoesch (JAEA) and others observed strong softening of optical-phonon modes in superconducting boron-doped diamond using inelastic x-ray scattering with use of a chemical vapor deposition grown highly oriented sample at SPring-8. The magnitude of the observed softening supports theoretical models suggesting a phonon-mediated pairing mechanism.

This article is presented in Japanese.

"Phonon softening in superconducting diamond"
M. Hoesch, T. Fukuda, J. Mizuki, T. Takenouchi, H. Kawarada, J. P. Sutter, S. Tsutsui, A. Q. R. Baron, M. Nagao, and Y. Takano
Physical Review B 75, 140508(R) (2007), published online 18 April 2007