Neutron magnetic ordering

F. Herren, P. Fisher, A. Ludi, and W. Haig, Neutron difraction study of Prussian blue, Fe4[Fe(CN)6]3 xH20. Location of water molecules and long-range magnetic order. Inorgan. Chem. 19, 956-959 (1980). 

The compound EuO has the NaCl structure and is paramagnetic above 70 K but magnetically ordered below it. its neutron diffraction patterns at high and low temperatures are identical. What is the nature of the magnetic ordering ... 

Magnetic ordering and spin configuration Magnetic susceptibility, neutron diffraction, Mossbauer spectroscopy... 

It should be noted here that the conclusion about s-wave nature of the SC order parameter is consistent with conclusion about s-wave symmetry of the SC order parameter in the bulk and d-wave symmetry at the surface of the sample of the cuprates [17]. It was noted in [17] that most conclusions about d-wave symmetry was obtained in experiments (e.g. ARPES ones) on the cuprates in which mainly surface phenomena have been used. In this sense, the resistive measurements on the cuprates (see, e.g. [4]) are essentially bulk in the nature. In addition, the electron scattering (in resistivity measurements) is sensitive to the spin disorder in the system (magnetic contribution in the electrical resistivity appears, see Sec.l). Moreover, the electron scattering permits probe not only static magnetic order but dynamical (short-lived) ones because of short characteristic times as compared e.g. with usual neutron scattering. 

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