Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates

M. P.M. Dean; A. J.A. James; A. C. Walters; V. Bisogni; I. Jarrige; M. Hücker; E. Giannini; M. Fujita; J. Pelliciari; Y. B. Huang; R. M. Konik; T. Schmitt; J. P. Hill

doi:10.1103/PhysRevB.90.220506

Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates

M. P.M. Dean, A. J.A. James, A. C. Walters, V. Bisogni, I. Jarrige, M. Hücker, E. Giannini, M. Fujita, J. Pelliciari, Y. B. Huang, R. M. Konik, T. Schmitt, J. P. Hill

Materials Property Division

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The cuprate high temperature superconductors exhibit a pronounced trend in which the superconducting transition temperature Tc increases with the number of CuO2 planes n in the crystal structure. We compare the magnetic excitation spectrum of Bi2+xSr2-xCuO6+δ (Bi-2201) and Bi2Sr2Ca2Cu3O10+δ (Bi-2223), with n=1 and 3, respectively, using Cu L3-edge resonant inelastic x-ray scattering. Near the antinodal zone boundary we find the paramagnon energy in Bi-2223 is substantially higher than that in Bi-2201, indicating that multilayer cuprates host stronger effective magnetic exchange interactions, providing a possible explanation for the Tc vs n scaling. In contrast, the nodal direction exhibits very strongly damped, almost nondispersive excitations. We argue that this implies that the magnetism in the doped cuprates is partially itinerant in nature.

Original language	English
Article number	220506
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	90
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.90.220506
Publication status	Published - 2014 Dec 4

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Dean, M. P. M., James, A. J. A., Walters, A. C., Bisogni, V., Jarrige, I., Hücker, M., Giannini, E., Fujita, M., Pelliciari, J., Huang, Y. B., Konik, R. M., Schmitt, T., & Hill, J. P. (2014). Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates. Physical Review B - Condensed Matter and Materials Physics, 90(22), [220506]. https://doi.org/10.1103/PhysRevB.90.220506

Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates. / Dean, M. P.M.; James, A. J.A.; Walters, A. C.; Bisogni, V.; Jarrige, I.; Hücker, M.; Giannini, E.; Fujita, M.; Pelliciari, J.; Huang, Y. B.; Konik, R. M.; Schmitt, T.; Hill, J. P.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 90, No. 22, 220506, 04.12.2014.

Research output: Contribution to journal › Article › peer-review

Dean, MPM, James, AJA, Walters, AC, Bisogni, V, Jarrige, I, Hücker, M, Giannini, E, Fujita, M, Pelliciari, J, Huang, YB, Konik, RM, Schmitt, T & Hill, JP 2014, 'Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates', Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 22, 220506. https://doi.org/10.1103/PhysRevB.90.220506

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