6533b7d7fe1ef96bd1268cb3
RESEARCH PRODUCT
EPR Study of Gd3+local structure in ScF3crystal with negative thermal expansion coefficient
Dz BerzinsAndris AntuzevicsA FedotovsV N VoronovUldis RogulisJuris Puranssubject
Materials scienceCondensed matter physicsZero field splittingCondensed Matter PhysicsLocal structureAtomic and Molecular Physics and Opticslaw.inventionCrystalNegative thermal expansionImpuritylawAngular dependencePhysics::Chemical PhysicsElectron paramagnetic resonanceMathematical Physicsdescription
Zero field splitting (ZFS) of Gd3+ impurity in ScF3 is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b4 values obtained from angular dependence simulations show that regardless of negative thermal expansion in ScF3 temperature dependence of |b4| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd3+ centres expands positively with temperature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-10-09 | Physica Scripta |