Table of Contents
ISRN Condensed Matter Physics
Volume 2011, Article ID 929713, 3 pages
Research Article

Paramagnetic Resonance as a Probe of the Spin Gap in Normal State of H g . 𝟕 𝟕 P b . 𝟑 𝟑 B a 𝟐 C a 𝟐 C u 𝟑 O 𝟖 + 𝑥 Superconductor

Department of Physics, Hunter College, CUNY, 695 Park Avenue, New York, NY 10065, USA

Received 30 August 2011; Accepted 26 September 2011

Academic Editors: S. Balamurugan and J. Bok

Copyright © 2011 Frank J. Owens. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. T. Ito, K. Takenaka, and S. Uchida, “Systematic deviation from T-linear behavior in the in-plane resistivity of YBa2Cu3O7y: evidence for dominant spin scattering,” Physical Review Letters, vol. 70, no. 25, pp. 3995–3998, 1993. View at Publisher · View at Google Scholar
  2. B. Bucher, P. Steiner, J. Karpinski, E. Kaldis, and P. Wachter, “Influence of the spin gap on the normal state transport in YBa2Cu4O8,” Physical Review Letters, vol. 70, no. 13, pp. 2012–2015, 1993. View at Publisher · View at Google Scholar
  3. A. G. Loser, Z. X. Shen, and D. S. Dessau, “Doping dependence of Bi2Sr2CaCu2O8+σ in the normal state,” Physica C, vol. 263, no. 1–4, pp. 208–213, 1996. View at Google Scholar
  4. M. Nuñez-Regueiro, J. L. Tholence, E. V. Antipov, J. J. Capponi, and M. Marezio, “Pressure-induced enhancement of Tc above 150 K in Hg-1223,” Science, vol. 262, no. 5130, pp. 97–99, 1993. View at Google Scholar
  5. F. J. Owens, “Paramagnetic resonance evidence for the opening of a spin gap in YBa2Cu2.7Co0.3O7x,” Physica C, vol. 325, no. 1-2, pp. 23–26, 1999. View at Google Scholar
  6. F. J. Owens, B. L. Ramakrishna, and Z. Iqbal, “EPR in YBa2Cu3O7−δ and YBa2Cu3O6+x,” Physica C, vol. 156, no. 2, pp. 221–224, 1988. View at Google Scholar
  7. F. Mehran, S. E. Barnes, T. R. McGuire, T. R. Dinger, D. L. Kaiser, and F. Holtzberg, “Observation by electron spin resonance of a pseudo-cubic site in YBa2Cu3O7−x,” Solid State Communications, vol. 66, no. 3, pp. 299–302, 1988. View at Google Scholar
  8. J. Albino, O. de Aguiar, A. A. Menovsky, J. van den Berg, and H. B. Brom, “ESR in YBa2Cu3O7−δ crystals,” Physica C, vol. 21, no. 8, p. L237, 1988. View at Publisher · View at Google Scholar
  9. F. J. Owens, A. G. Rinzler, and Z. Iqbal, “Magneto-microwave absorption study of flux depinning in Hg0.7Pb0.3Ba2Ca2Cu3O8 superconductor,” Physica C, vol. 233, no. 1-2, pp. 30–34, 1994. View at Google Scholar
  10. Z. Iqbal, T. Datta, D. Kirven et al., “Superconductivity above 130 K in the Hg–Pb–Ba–Ca–Cu–O system,” Physical Review B, vol. 49, no. 17, pp. 12322–12325, 1994. View at Publisher · View at Google Scholar
  11. K. Oshima, K. Okuda, and M. Date, “G-shift in low dimensional antiferromagnets at low temperatures,” Journal of the Physical Society of Japan, vol. 41, no. 2, pp. 475–480, 1976. View at Google Scholar
  12. Y. Morimoto and M. Date, “Anomalous shift of ESR lines in two dimensional antiferromagnet Cu(HCOO)24H2O,” Journal of the Physical Society of Japan, vol. 29, no. 4, p. 1093, 1970. View at Google Scholar
  13. L. N. Bulaevskii, A. I. Buzdin, and D. I. Khomskii, “Spin-peierls transition in magnetic field,” Solid State Communications, vol. 27, no. 1, pp. 5–10, 1978. View at Publisher · View at Google Scholar
  14. M. Troyer, H. Tsunetsugu, and D. Würtz, “Thermodynamics and spin gap of the Heisenberg ladder calculated by the look-ahead Lanczos algorithm,” Physical Review B, vol. 50, no. 18, pp. 13515–13527, 1994. View at Publisher · View at Google Scholar
  15. J. M. Tranquada, B. J. Sternlieb, J. D. Axe, Y. Nakamura, and S. Uchida, “Evidence for stripe correlations of spins and holes in copper oxide superconductors,” Nature, vol. 375, no. 6532, pp. 561–563, 1995. View at Google Scholar
  16. M. H. Julien, P. Carretta, M. Horvatić et al., “Spin gap in HgBa2Ca2Cu3O8+δ single crystals from 63Cu NMR,” Physical Review Letters, vol. 76, no. 22, pp. 4238–4241, 1996. View at Google Scholar