2009/02/26 by O. Waldmann, T. C. Stamatatos, Theocharis C. Stamatatos +6 · 53 citations
Materials Science · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Inelastic neutron scattering #Lanthanide and Transition Metal Complexes #Magnetic field #Magnetism #Magnetism in coordination complexes #Magnetization #Neutron scattering #Organic and Molecular Conductors Research #Phase (matter) #Physics #Quantum #Quantum fluctuation #Quantum mechanics #Quantum tunnelling #Scattering #Semiclassical physics #cond-mat.other #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.102.157202
published in Physical Review Letters 102(15), 157202 (American Physical Society) · 5 pages, 4 figures, REVTEX4, to appear in PRL
arxiv created 2009/02/26 · openalex publication_date 2009/04/13 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The antiferromagnetic molecular wheel Fe18 of 18 exchange-coupled Fe;III ions has been studied by magnetic torque, magnetization, and inelastic neutron scattering. The combined data show that the low-temperature magnetism of Fe18 is very accurately described by the Néel-vector tunneling (NVT) scenario, as unfolded by semiclassical theory. In addition, the magnetic torque as a function of applied field exhibits oscillations that reflect the oscillations in the NVT splitting with field due to quantum phase interference.