ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The paramagnetic scattering cross section of the anisotropic metallic ferromagnet MnP has been measured up to the zone boundaries along the [100] and [010] directions perpendicular to the easy magnetization axis. The spectral shape functions in both directions are well fitted to a Lorentzian form at T=TC (290.5 K), 1.03TC, and 1.20TC except those close to the zone boundaries. Near TC the linewidth along [010] follows the dynamical scaling prediction for the isotropic ferromagnet Γ(q)∝q2.5. On the contrary, a unique q dependence, Γ(q)∝q3.2, along [100] was observed. However, these q dependencies deviate at small q(q〈0.1 A−1 along [100] and q〈0.02 A−1 along [010]), suggesting the existence of a residual linewidth of Γ0∼0.02 meV at q=0.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.338787
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