Huge Transverse Magnetization in the Field-Induced Phase of the Antiferromagnetic Molecular Wheel CsFe8

Abstract

The 1H-NMR spectrum and nuclear relaxation rate 1/T_1 in the antiferromagnetic wheel CsFe8 were measured to characterize the previously observed magnetic field-induced low-temperature phase around the level crossing at 8 T. The data show that the phase is characterized by a huge staggered transverse polarization of the electronic Fe spins, and the opening of a gap, providing microscopic evidence for the interpretation of the phase as a field-induced magneto-elastic instability.

arXiv comment5 pages, 4 figures, REVTEX4, to appear in PRL

References in corpus (6)

• Realization of Bose-Einstein condensation of dilute magnons in TlCuCl${}_3$
• Magnetization plateaus of the Shastry-Sutherland model for SrCu_2(BO_3)_2: SDW, supersolid and bound states
• Proton NMR for Measuring Quantum-Level Crossing in the Magnetic Molecular Ring Fe10
• Quantum dynamics of the Neel vector in the antiferromagnetic molecular wheel CsFe8
• Field-induced magnetoelastic instabilities in antiferromagnetic molecular wheels
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Cited by in corpus (2)

• Magnetic Cluster Excitations
• Spin-Peierls instabilities of antiferromagnetic rings in a magnetic field