6533b838fe1ef96bd12a47ae
RESEARCH PRODUCT
Singlet ground state magnetism: II. magnetic excitons in paramagnetic TbP
B. LüthiK. KnorrJørgen KjemsAlois Loidlsubject
PhysicsParamagnetismCondensed matter physicsMagnetismTransition temperatureExcitonPhenomenological modelAntiferromagnetismCondensed Matter PhysicsDispersion (chemistry)Inelastic neutron scatteringElectronic Optical and Magnetic Materialsdescription
The magneticΓ 1 –Γ 4 exciton of the singlet ground state system TbP has been studied by inelastic neutron scattering above the antiferromagnetic ordering temperature. Considerable dispersion and a pronounced splitting was found in the [100] and [110] directions. Both the band width and the splitting increased rapidly as the transition temperature was approached in accordance with the predictions of the RPA-theory. The dispersion is analysed in terms of a phenomenological model using interactions up to the fourth nearest neighbour.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1979-09-01 | Zeitschrift f�r Physik B Condensed Matter and Quanta |