The spin excitation spectrum in superconducting YBa2Cu3O6.85

Science

Volumn 288, Issue 5469, 2000, Pages 1234-1237

  Bourges, P ^a   Sidis, Y ^a   Fong, H F ^b   Regnault, L P ^c   Bossy, J ^d   Ivanov, A ^e   Keimer, B ^b,f  

^a CEA SACLAY   (France)

^b PRINCETON UNIVERSITY   (United States)

^c Commsrt l'Ener Atom Grenoble ^*  (France)

^d LABORATOIRE DE CRISTALLOGRAPHIE   (France)

^e INSTITUT LAUE LANGEVIN   (France)

^f MAX PLANCK INSTITUT FÜR FESTKÖRPERFORSCHUNG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

BARIUM DERIVATIVE; COPPER DERIVATIVE;

ARTICLE; CONDUCTANCE; COOLING; CRYSTAL STRUCTURE; ENERGY; NEUTRON SCATTERING; PRIORITY JOURNAL; TEMPERATURE DEPENDENCE;

EID: 0034685816     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.288.5469.1234     Document Type: Article

References (31)

1. J. M. Tranquada et al., Nature 375, 561 (1995).
2. V. J. Emery and S. A. Kivelson, Physica C 209, 597 (1993).
3. T. E. Mason et al., Phys. Rev. Lett. 66, 1414 (1992).
4. T. R. Thurston et al., Phys. Rev. B 46, 9128 (1992).
5. S. Petit et al., Physica B 234-236, 800 (1997).
6. K. Yamada et al., Phys. Rev. B 57, 6165 (1998).
7. J. Rossat-Mignod et al., Physica C 185-189, 86 (1991).
8. H. A. Mook et al., Phys. Rev. Lett. 70, 3490 (1993).
9. H. F. Fong et al., Phys. Rev. Lett. 75, 316 (1995).
10. P. Bourges, L. P. Regnault, Y. Sidis, C. Vettier, Phys. Rev. B 53, 876 (1996).
11. H. F. Fong, B. Keimer, D. Reznik, D. M. Milius, I. A. Aksay, Phys. Rev. B 54, 6708 (1996).
12. P. Bourges, in The Gap Symmetry and Fluctuations in High Temperature Superconductors, J. Bok et al., Eds. (Plenum, New York, 1998), pp. 349-371 (e-Print available at http://xxx.lanl.gov/abs/cond-mat/9901333).
13. L. P. Regnault, P. Bourges, P. Burlet, in Neutron Scattering in Layered Copper-Oxide Superconductors, A. Furrer, Ed. (Kluwer, Amsterdam, 1998), pp. 85-134.
14. H. F. Fong, B. Keimer, F. Dogan, I. A. Aksay, Phys. Rev. Lett. 78, 713 (1997).
15. P. Bourges et al., Europhys. Lett. 38, 313 (1997).
16. P. Dai et al., Phys. Rev. Lett. 80, 1738 (1998).
17. H. A. Mook et al., Nature 395, 580 (1998).
18. M. Arai et al., Phys. Rev. Lett. 83, 608 (1999).
19. D. van der Marel, Phys. Rev. B 51, 1147 (1995).
20. F. Onufrieva and P. Pfeuty, e-Print available at http:// xxx.lanl.gov/abs/cond-mat/9903097.
21. J. Brinckmann and P. Lee, Phys. Rev. Lett. 82, 2915 (1999).
22. Y.-J. Kao, Q. Si, K. Levin, e-Print available at http:// xxx.ianl.gov/abs/cond-mat/9908302.
23. K.-K. Voo and W. C. Wu, e-Print available at http:// xxx.lanl.gov/abs/cond-mat/9911321.
24. H. F. Fong et al., Phys. Rev. B., in press (e-Print available at http://xxx.lanl.gov/abs/cond-mat/9910041).
25. On IN8, a Cu(111) monochromator and a pyrolytic graphite PG(002) analyzer, set at a fixed final energy of 35 meV, were used. On 2T, PG(002) was employed as both monochromator and analyzer with a 14.7-meV fixed final energy, in both experiments, a PG filter was inserted into the scattered beam to remove higher order contamination. The sample was wrapped in aluminum foll and attached to the cold finger of a closed-cycle helium refrigerator.
26. For simplicity, we describe the data with an isotropic dispersion relation (α independent of q). A slight anisotropy of α between the (100) and (110) directions, with an associated intensity modulation, would reproduce the detailed momentum dependence reported in (17).
27. Above 45 meV, the magnetic peaks are characterized by a broader response (18, 24) reminiscent of the spin waves of the undoped compound [see P. Bourges et al., Phys. Rev. B 56, R11439 (1997)].
28. A. V. Batatsky and P. Bourges, Phys. Rev. Lett. 82, 5337 (1999).
29. P. Bourges et al., in High Temperature Superconductivity, S. E. Barnes et al., Eds. (American Institute of Physics, Amsterdam, 1999), pp. 207-212 (e-Print available at http://xxx.lanLgov/abs/cond-mat/9902067).
30. G. Aeppli, T. E. Mason, S. M. Hayden, H. A. Mook, J. Kulda, Science 278, 1432 (1997).
31. We thank P. Baroni for his help during the experiment at Laboratoire Léon Brillouin and G. Aeppli, B. Hennion, G. Khaliullin, F. Onufrieva, and P. Pfeuty for stimulating discussions. The work at Princeton University was supported by the Materials Research Science and Engineering Centers program of the NSF under DMR-9809483.