261 research outputs found
Magnetic structures of the iridium-based double perovskites Pr2NiIrO6 and Nd2NiIrO6 reinvestigated using neutron diffraction
Multigap superconductivity in the filled-skutterudite compound LaRu4As12 probed by muon spin rotation
Inelastic neutron scattering study of crystalline electric field excitations in the caged compounds NdT2Zn20 (T = Co, Rh, and Ir)
Inelastic neutron scattering and muon spin relaxation investigations of the deuterated Kondo lattices CeNiSnD x
Incommensurate spin-density-wave antiferromagnetism in CeRu2Al2B
The newly discovered Ising-type ferromagnet CeRu2Al2B exhibits an additional phase transition at TN=14.2 K before entering the ferromagnetic ground state at TC=12.8 K. We clarify the nature of this transition through high resolution neutron diffraction measurements. The data reveal the presence of a longitudinal incommensurate spin-density wave (SDW) in the temperature range of TC<T<TN. The propagation vector q∼(0,0,0.148) is nearly temperature independent in this region and discontinuously locks into q=0 at TC. Mean-field calculations of an effective Ising model indicate that the modulated SDW phase is stabilized by a strong competition between ferromagnetic and antiferromagnetic exchange interactions. This makes CeRu2Al2B a particularly attractive model system to study the global phase diagram of ferromagnetic heavy-fermion metals under the influence of magnetic frustration
Occupational disorder as the origin of flattening of the acoustic phonon branches in the clathrate Ba8Ga16Ge30
Doping site induced alteration of incommensurate antiferromagnetic ordering in Fe-doped MnNiGe alloys
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