Softening and Broadening of the Zone Boundary Magnons in Pr0.63Sr0.37MnO3

Details Softening and Broadening of the Zone Boundary Magnons in Pr0.63Sr0.37MnO3 Softening and Broadening of the Zone Boundary Magnons in Pr0.63Sr0.37MnO3

1997-10-15

arxiv.org/abs/cond-mat/9710157v1

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, Latex, 3 figures

Scientific paper

10.1103/PhysRevLett.80.1316

We have studied the spin dynamics in Pr$_{0.63}$Sr$_{0.37}$MnO$_3$ above and below the Curie temperature $T_C=301$ K. Three distinct new features have been observed: a softening of the magnon dispersion at the zone boundary for $T

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