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- Oak Ridge National LaboratoryUS269 papers
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- Institute of PhysicsPL23 papers
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14 papers · 2 filters
The unusual magnetism of nanoparticle LaCoO3
A. M. Durand, D. P. Belanger, T. J. Hamil +6
Bulk and nanoparticle powders of LaCoO3 (LCO) were synthesized, and their magnetic and structural properties were studied using SQUID magnetometry and neutron diffraction. The bulk…
The effects of Co3O4 on the Structure and Unusual Magnetism of LaCoO3
A. M. Durand, T. J. Hamil, D. P. Belanger +5
Bulk La_wCoO3 particles with w=1.1, 1.0, 0.9, 0.8, and 0.7 were synthesized using starting materials with varying molar ratios of La2O3 and Co3O4. The resulting particles are chara…
Complex magnetic ordering in CeGe1.76 studied by neutron diffraction
W. T. Jayasekara, W. Tian, H. Hodovanets +4
Neutron diffraction measurements on a single crystal of CeGe1.76 reveal a complex series of magnetic transitions at low temperature. At T_N = 7 K, there is a transition from a para…
Momentum-space structure of quasielastic spin fluctuations in Ce3Pd20Si6
P. Y. Portnichenko, A. S. Cameron, M. A. Surmach +8
Among heavy-fermion metals, CePdSi is one of the heaviest-electron systems known to date. Here we used high-resolution neutron spectroscopy to observe low-energy mag…
Soft striped magnetic fluctuations competing with superconductivity in Fe_{1+x}Te
C. Stock, E. E. Rodriguez, O. Sobolev +5
Neutron spectroscopy is used to investigate the magnetic fluctuations in Fe_{1+x}Te - a parent compound of chalcogenide superconductors. Incommensurate "stripe-like" excitations so…
Magnetoelectric coupling tuned by competing anisotropies in MnNiTiO
Songxue Chi, Feng Ye, H. D. Zhou +4
A flop of electric polarization from () to () is observed in MnTiO as a spin flop transition is triggered by a -axis magnetic f…