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|Title:||Spherical Neutron Spin Polarimetry of Anisotropic Magnetic Fluctuations in UO2|
|Authors:||BLACKBURN Elizabeth; CACIUFFO Roberto; MAGNANI N.; SANTINI P.; BROWN P.j.; ENDERLE M.; LANDER Gerard|
|Citation:||PHYSICAL REVIEW B-CONDENSED MATTER vol. B-72 no. 184411 p. 1-10|
|Publisher:||AMER INST PHYSICS|
|JRC Publication N°:||JRC30244|
|Type:||Articles in Journals|
|Abstract:||The anisotropy of magnetic fuctuations propagating along the symmetric directions in the ordered phase of uranium dioxide has been studied by applying the spherical neutron-spin polarimetry technique to inelastic neutron scattering. The dependence of uctuation amplitudes and directions as a function of the quasi-particle wavevector q has been investigated along the main crystallographic directions. The observed behaviour is discussed in relation to the spin dynamics of the 3-k transverse magnetic structure. The observed polarization behavior of the spin waves, and in particular the acoustic mode, is shown to be a natural consequence of the transverse 3-k magnetic structure.|
|JRC Institute:||Institute for Transuranium Elements|
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