TY - JOUR
T1 - Giant negative magnetization in a layered organic magnet
AU - Fishman, Randy S.
AU - Reboredo, Fernando A.
PY - 2007/11/19
Y1 - 2007/11/19
N2 - Bimetallic oxalates are a class of layered organic magnets with transition metals M(II) and M′(III) coupled by oxalate molecules in an open honeycomb structure. Energy, structure, and symmetry considerations are used to construct a reduced Hamiltonian, including exchange and spin-orbit interactions, that explains the giant negative magnetization in some of the ferrimagnetic Fe(II)Fe(III) compounds. We also provide new predictions for the spin-wave gap, the effects of uniaxial strain, and the optical flipping of the negative magnetization in Fe(II)Fe(III) bimetallic oxalates.
AB - Bimetallic oxalates are a class of layered organic magnets with transition metals M(II) and M′(III) coupled by oxalate molecules in an open honeycomb structure. Energy, structure, and symmetry considerations are used to construct a reduced Hamiltonian, including exchange and spin-orbit interactions, that explains the giant negative magnetization in some of the ferrimagnetic Fe(II)Fe(III) compounds. We also provide new predictions for the spin-wave gap, the effects of uniaxial strain, and the optical flipping of the negative magnetization in Fe(II)Fe(III) bimetallic oxalates.
UR - http://www.scopus.com/inward/record.url?scp=36249011832&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.99.217203
DO - 10.1103/PhysRevLett.99.217203
M3 - Article
AN - SCOPUS:36249011832
SN - 0031-9007
VL - 99
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 217203
ER -