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SHARPER sample chamber 2 Goniometers 1 Rotation 1 Up-Down (Z) 1- X 1- Y

ferroelectric perovskites Cubic perovskites with mixed B-site occupancy like PMN (PbMg 1/3 Nb 2/3 O 3 ), PZN (PbZn 1/3 Nb 2/3 O 3 ) or even more complicated mixtures, are attractive for industrial applications

scattering intensity from La5/3Sr1/3NiO4The plane is (h,k,0) and the energy transfer is 2.5 meV. Spin correlations in charge-ordered La 5/3 Sr 1/3 NiO 4 Charge order of La 5/3 Sr 1/3 NiO 4 takes place in the ... NiO 2 layers and consists of parallel stripes of doped holes carrying spin S=1/2 in a background of Ni 2+ ions carrying spin S=1. The ...

scattering may be studied as well by polarization analysis. Under normal working conditions, a low field of 1-2 Gauss is used on the sample, but experiments in magnetic fields up to 2 T are also possible. A graphite

equivalent to a measurement at an energy transfer of about 10 neV. S(Q,t)/S(q,0) measured at Q=0.07Å-1. Combined data from IN11 and IN15 (H. Casalta et al., Phys. Rev. Lett. 82 (1999) 1301).

coating of the side walls increases up to m=3.2. We installed a new double focusing PG monochromator in 1.8m distance from the guide end composed of 11 x 11 PG(002) crystals, with a size of 16cm x 20cm in total ... in magnetic field experiments. The neutrons pass a (variable) sample to analyzer distance of about 1.3m and a analyzer to detector ...

field, because of the Zeeman splitting of the S = 1 state, a phase transition occurs at a critical field H c1 , when the lowest gap closes. Above H c1 , the field-induced magnetic ordering is due to the ... Example 1 - Field dependence of the energy gaps, measured at Q=(0.27, 0.27,2), for the three S = I excitations.Insert: Energy scan measured at ...

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list D1B D2B D3 D4 D7 D9 D10 D11 D16 D17 D19 D20 D22 D23 D33 DALI FIGARO FIPPS FlatCone IMPS IN1-Lagrange IN5 IN8 IN12 IN13 IN15 IN16B IN20 IN22 LADI III NeXT OrientExpress PANTHER PF1B PF2 PN1 S18 Salsa

phases non-lamellaires telles que les phases hexagonales inversées (HII) ou les phases isotropes (I) [1, 2]. Les objectifs principaux de ce stage sont d’étendre le modèle Matryoshka actuel afin de décrire