541 citations · 3.8k across the 66 of their papers we have counts for
8 papers · 2 filters
Orbital-assisted metal-insulator transition in VO
M. W. Haverkort, Z. Hu, A. Tanaka +9
We found direct experimental evidence for an orbital switching in the V 3d states across the metal-insulator transition in VO. We have used soft-x-ray absorption spectroscopy…
Spin-state transition in LaCoO3: direct neutron spectroscopic evidence of excited magnetic states
A. Podlesnyak, S. Streule, J. Mesot +5
A gradual spin-state transition occurs in LaCoO3 around T~80-120 K, whose detailed nature remains controversial. We studied this transition by means of inelastic neutron scattering…
Spin and orbital degrees of freedom in transition metal oxides and oxide thin films studied by soft x-ray absorption spectroscopy
M. W. Haverkort
The class of transition metal compounds shows an enormous richness of physical properties, such as metal-insulator transitions, colossal magneto-resistance, super-conductivity, mag…
Controlling orbital moment and spin orientation in CoO layers by strain
S. I. Csiszar, M. W. Haverkort, Z. Hu +6
We have observed that CoO films grown on different substrates show dramatic differences in their magnetic properties. Using polarization dependent x-ray absorption spectroscopy at…
Aligning spins in antiferromagnetic films using antiferromagnets
S. I. Csiszar, M. W. Haverkort, T. Burnus +9
We have explored the possibility to orient spins in antiferromagnetic thin films with low magnetocrystalline anisotropy via the exchange coupling to adjacent antiferromagnetic film…
Nature of magnetism in CaCoO
Hua Wu, M. W. Haverkort, Z. Hu +2
We find using LSDA+U band structure calculations that the novel one-dimensional cobaltate CaCoO is not a ferromagnetic half-metal but a Mott insulator. Both the octahed…