6533b85afe1ef96bd12b9555

RESEARCH PRODUCT

Magnetic properties of AgLnSe2 compounds (Ln=Ho, Er, Tm and Yb)

Marek DuczmalStefan Pokrzywnicki

subject

LanthanideChemistryMechanical EngineeringInorganic chemistryMetals and AlloysMagnetic susceptibilityIonCrystalCrystallographyMagnetizationchemistry.chemical_compoundOctahedronMechanics of MaterialsSelenideMaterials ChemistryOrthorhombic crystal system

description

Abstract The heavy lanthanide selenides AgLnSe2 (Ln=Ho–Yb) crystallize in the orthorhombic AgErSe2 type structure (P212121). The lanthanide ions are placed in the centres of slightly distorted octahedra, whereas each of the silver ions is surrounded by four selenide ions forming a strongly distorted tetrahedron. The high field magnetization (up to 14 T) and the magnetic susceptibility were measured on the polycrystalline samples. The crystal field parameters were estimated from the field dependences of the magnetizations, assuming a rhombic distortion of LnSe6 octahedra. The magnetic susceptibilities were also calculated using the same set of the crystal field parameters. None of the compounds described here undergoes a magnetic transition above 4.2 K.

https://doi.org/10.1016/s0925-8388(01)01162-8