Mesoscopic quantum coherence in antiferromagnetic molecular clusters

Abstract

From inelastic neutron scattering experiments, we demonstrate quantum tunneling of the Neel vector in the antiferromagnetic molecular ferric wheel CsFe8. Analysis of the linewidth of the tunneling transition evidences coherent tunneling.

4 pages, 4 figure, REVTEX4

References in corpus (4)

• Elementary excitations in the cyclic molecular nanomagnet Cr8
• Thermodynamics and Spin Tunneling Dynamics in Ferric Wheels with Excess Spin
• Q-dependence of the inelastic neutron scattering cross section for molecular spin clusters with high molecular symmetry
• Spin dynamics and coherent tunnelling in the molecular magnetic rings Fe_6 and Fe_8

Cited by in corpus (17)

• Direct Observation of Quantum Coherence in Single-Molecule Magnets
• Magnetic Cluster Excitations
• Many-spin effects in inelastic neutron scattering and electron paramagnetic resonance of molecular nanomagnets
• Quantum Phase Interference and Neel-Vector Tunneling in Antiferromagnetic Molecular Wheels
• Discrete antiferromagnetic spin-wave excitations in the giant ferric wheel Fe18
• Quantized antiferromagnetic spin waves in the molecular Heisenberg ring CsFe${}_8$
• Direct observation of mixing of spin-multiplets in an antiferromagnetic molecular nanomagnet by electron paramagnetic resonance
• Macroscopic signature of protected spins in a dense frustrated magnet
• Quantum dynamics of the Neel vector in the antiferromagnetic molecular wheel CsFe8
• Exchange-coupling constants, spin density map, and Q dependence of the inelastic neutron scattering intensity in single-molecule magnets
• Field-induced magnetoelastic instabilities in antiferromagnetic molecular wheels
• Field-induced level crossings in spin clusters: Thermodynamics and magneto-elastic instability
• Pressure dependence of the exchange interaction in the dimeric single-molecule magnet [Mn4O3Cl4(O2CEt)3(py)3]2 from inelastic neutron scattering
• On-chip Integration of High-Frequency Electron Paramagnetic Resonance Spectroscopy and Hall-Effect Magnetometry
• Antiferromagnetic molecular nanomagnets with odd-numbered coupled spins
• Symmetry-Induced Universal Momentum-Transfer Dependencies for Inelastic Neutron Scattering on Anisotropic Spin Clusters
• NMR and ${\mu }^{+}$SR detection of unconventional spin dynamics in Er(trensal) and Dy(trensal) molecular magnets