Abstract
The interlayer magnetoresistance of the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2)Br is measured at ambient pressure and under pressures of up to 12.5 kbar. In addition to the slow Shubnikov-de Haas oscillations with a frequency of ≃150 T observed at P⩾5 kbar, rapid oscillations attributed to the magnetic breakdown orbit enveloping an area equal to 100% of the area of the Brillouin zone are found to emerge above B=20 T. The latter oscillations are observed at ambient pressure as well as under pressures of up to 9 kbar.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. M. Williams, J. R. Ferraro, R. J. Thorn et al., Organic Superconductors, Prentice-Hall, Englewood Cliffs, N.J., 1992.
T. Komatsu, T. Nakamura, N. Matsukawa et al., Solid State Commun. 80, 843 (1991).
H. Urayama, H. Yamochi, G. Saito et al., Chem. Lett., No. 1, 55 (1988).
K. Miyagawa, A. Kawamoto, Y. Nakazawa, and K. Kanoda, Phys. Rev. Lett. 75, 1174 (1995).
H. Mayaffre, P. Wzietek, C. Lenoir et al., Europhys. Lett. 28, 205 (1994); H. Kawamoto, K. Miyagawa, Y. Nakazawa, and K. Kanoda, Phys. Rev. Lett. 74, 3455 (1995).
Y. Nakazawa and K. Kanoda, Phys. Rev. B 53, R8875 (1996).
K. Oshima, T. Mori, H. Inokuchi et al., Phys. Rev. B 38, 938 (1988).
A. J. Schultz, H. H. Wang, J. M. Williams et al., Physica C 234, 300 (1994).
T. Sasaki, H. Sato, and N. Toyota, Solid State Commun. 76, 507 (1990); C.-P. Heidmann, H. Muller, W. Biberacher et al., Synth. Met. 41–43, 2029 (1991).
M. V. Kartsovnik, W. Biberacher, K. Andres, and N. D. Kushch, JETP Lett. 62, 905 (1995).
M. V. Kartsovnik, G. Yu. Logvenov, H. Ito et al., Phys. Rev. B 52, R15715 (1995).
M. V. Kartsovnik, G. Yu. Logvenov, W. Biberacher et al., Synth. Met. 86, 2061 (1997).
L. I. Buravov, N. D. Kushch, V. A. Merzhanov et al., J. Phys. I 2, 1257 (1992).
M. Kund, H. Muller, W. Biberacher, and K. Andres, Physica B 191, 274 (1993).
J. Caulfield, W. Lubczynski, F. L. Pratt et al., J. Phys.: Condens. Matter 6, 2911 (1994).
D. Chasseau, J. Gaultier, M. Rahal et al., Synth. Met. 41–43, 2039 (1991).
E. Balthes, D. Schweitzer, I. Heinen et al., Z. Phys. B 99, 163 (1996).
Y. Nogami, J.-P. Pouget, H. Ito et al., Solid State Commun. 89, 113 (1994).
P. J. van der Wel, J. Caulfield, J. Singleton et al., Physica C 235–240, 2453 (1994).
Author information
Authors and Affiliations
Additional information
Pis’ma Zh. Éksp. Teor. Fiz. 66, No. 3, 190–194 (10 August 1997)
Published in English in the original Russian journal. Edited by Steve Torstveit.
Rights and permissions
About this article
Cite this article
Weiss, H., Kartsovnik, M.V., Biberacher, W. et al. Magnetic quantum oscillations in the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br. Jetp Lett. 66, 202–207 (1997). https://doi.org/10.1134/1.567487
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.567487