Huge transverse magnetic polarization in the field-induced phase of the antiferromagnetic molecular wheel CsFe(8).
The 1H NMR spectrum and nuclear relaxation rate T(1)(-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 magnetoelastic instability.
Schnelzer
L
L
Physikalisches Institut, Universität Karlsruhe (TH), 76128, Karlsruhe, Germany.
Waldmann
O
O
Horvatić
M
M
Ochsenbein
S T
ST
Krämer
S
S
Berthier
C
C
Güdel
H U
HU
Pilawa
B
B
D003080:Cold Temperature; D060526:Magnetic Fields; D009682:Magnetic Resonance Spectroscopy