Abstract
Pronounced softening of the high-frequency part of the phonon spectrum at high pressures is observed by means of tunneling spectroscopy. As the pressure is increased, the characteristic frequencies of the spectrum at ħΩ>60 mV decrease at the rate d ln(ħΩ)/dP≈(−6.5±0.5)×10−3 kbar−1. On the other hand, hydrostatic pressure causes the low frequencies of the phonon spectrum of Bi 2223 metal oxide to shift very slightly toward higher energies, consistent with Raman spectra.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. L. Wolf, Principles of Electron Tunneling Spectroscopy (Oxford Univ. Press, New York, 1985) [Russian trans., Naukova Dumka, Kiev, 1990].
A. I. D’yachenko and V. M. Svistunov, Fiz. Nizk. Temp. 22, 547 (1996) [Low Temp. Phys. 22, 421 (1996)].
B. Barbiellini, O. Fisher, M. Peter, Ch. Renner, and M. Weger, Physica C 20, 55 (1994).
H. Ding, J. C. Campuzano, A. F. Bellman, Y. Yokoya, M. R. Norman, M. Randeria, T. Takahashi, H. Katayama-Yoshida, T. Mochiku, K. Kadowaki, and G. Jennings, Phys. Rev. Lett. 74, 2784 (1995).
V. M. Svistunov, M. A. Belogolovskii, A. I. Khachaturov, Usp. Fiz. Nauk 163, 61 (1993) [Phys. Usp. 36, 65 (1993)].
D. J. van Harlingen, Rev. Mod. Phys. 67, 515 (1995).
A. P. Litvinchuk, C. Thompson, and M. Cardona, in Physical Properties of High Temperature Superconductors, edited by D. M. Ginsberg (World Scientific Publication, Singapore, 1994), p. 375.
L. Pintschovius and W. Reichardt, in Physical Properties of High Temperature Superconductors, edited by D. M. Ginsberg (World Scientific Publication, Singapore, 1994), p. 295.
R. Aoki, H. Murakami, T. Kita, M. Shirai, Y. Nishio, V. M. Svistunov, A. I. D’yachenko, and D. N. Afanassyev, Physica B 219/220, 172 (1996).
V. M. Svistunov, V. Yu. Tarenkov, A. I. D’yachenko, A. A. Kvachev, and O. I. Chernyak, Fiz. Tverd. Tela (Leningrad) 30, 3515 (1988) [Sov. Phys. Solid State 30, 2022 (1988)].
V. M. Svistunov, M. A. Belogolovskii, and O. I. Chernyak, Usp. Fiz. Nauk 151, 31 (1987) [Sov. Phys. Usp. 30, 1 (1987)].
Author information
Authors and Affiliations
Additional information
Fiz. Tverd. Tela (St. Petersburg) 39, 1764–1766 (October 1997)
Rights and permissions
About this article
Cite this article
Svistunov, V.M., Tarenkov, V.Y., D’yachenko, A.I. et al. Tunneling investigations of the phonon spectrum of a Bi 2223 metal oxide at high pressures. Phys. Solid State 39, 1572–1574 (1997). https://doi.org/10.1134/1.1129900
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1129900