TY - JOUR
T1 - Frustrated superexchange interaction versus orbital order in a LaVO3 crystal
AU - Zhou, J. S.
AU - Ren, Y.
AU - Yan, J. Q.
AU - Mitchell, J. F.
AU - Goodenough, J. B.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2008/1/28
Y1 - 2008/1/28
N2 - Measurements of magnetic, transport properties, thermal conductivity, and magnetization under pressure as well as neutron diffraction have been made on a single crystal and powder sample of LaVO3. The Néel temperature was found to mark a transition from the phase with both frustrated superexchange interaction and spin-orbit λL•S coupling to the phase where the Jahn-Teller orbital-lattice coupling dominates. The dramatic reduction of absolute entropy in the paramagnetic phase is explained in terms of forming a long-range coherent state due to the interference between frustrated orbits and spins. © 2008 The American Physical Society.
AB - Measurements of magnetic, transport properties, thermal conductivity, and magnetization under pressure as well as neutron diffraction have been made on a single crystal and powder sample of LaVO3. The Néel temperature was found to mark a transition from the phase with both frustrated superexchange interaction and spin-orbit λL•S coupling to the phase where the Jahn-Teller orbital-lattice coupling dominates. The dramatic reduction of absolute entropy in the paramagnetic phase is explained in terms of forming a long-range coherent state due to the interference between frustrated orbits and spins. © 2008 The American Physical Society.
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U2 - 10.1103/PhysRevLett.100.046401
DO - 10.1103/PhysRevLett.100.046401
M3 - RGC 21 - Publication in refereed journal
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 046401
ER -