A. Krimmel

Neutron diffraction study of the heavy fermion superconductors UM2Al3(M=Pd, Ni)

An elastic neutron scattering study was performed on the new superconducting heavy fermion systems UPd2Al3 and UNi2Al3. The neutron diffraction patterns reveal unambiguously long range antiferromagnetic order in UPd2Al3 with an ordered magnetic momentμU = (0.85±0.03)μB, which coexists with the superconducting state. This is by far the largestμU value observed for any heavy fermion superconductor. For UNi2Al3, no long-range magnetic order could be observed for temperaturesT≧1.5 K, yielding an upper limit of the ordered moment of 0.2μB.

Structural, magnetic, and electrical properties of single-crystalline La 1 − x Sr x MnO 3 ( 0.4 x 0.85 )

We report on structural, magnetic, and electrical properties of Sr-doped

Pressure-induced structural phase transition in the IV–VI semiconductor SnS

{\mathrm{LaMnO}}_{3}

Single crystal neutron diffraction studies of the heavy fermion superconductor UPd2Al3

single crystals for doping levels

Absence of commensurate ordering at the polarization flop transition in multiferroic DyMnO3

0.4l~xl~0.85.

Spin-driven phase transitions in ZnCr 2 Se 4 and ZnCr 2 S 4 probed by high-resolution synchrotron x-ray and neutron powder diffraction

The complex structural and magnetic phase diagram can only be explained assuming significant contributions from the orbital degrees of freedom. Close to

Magnetic excitations and the search for crystal-field transitions in the heavy-fermion superconductor UPd2Al3

x=0.6

Structural, transport and magnetic properties of Ru1-xMxSr2GdCu2O8 (M = Ti and Rh for 0 ≤ x ≤ 0.2)

a ferromagnetic metal is followed by an antiferromagnetic metallic phase below 200 K. This antiferromagnetic metallic phase exists in a monoclinic crystallographic structure. Following theoretical predictions this metallic antiferromagnet is expected to reveal an

Low temperature incommensurately modulated and noncollinear spin structure in FeCr2S4

{(x}^{2}\ensuremath{-}{y}^{2})

Magnetic phase transitions in TbFe2Al10, HoFe2Al10 and ErFe2Al10

-type orbital order. For higher Sr concentrations an antiferromagnetic insulator is established below room temperature.