Electron paramagnetic resonance enhanced crystal field analysis for low point-group symmetry systems: C2v sites in Sm3+:CaF2/SrF2

S P Horvath; J-P R Wells; M F Reid; M Yamaga; M Honda

doi:10.1088/1361-648X/aaee5c

Electron paramagnetic resonance enhanced crystal field analysis for low point-group symmetry systems: C_2v sites in Sm³⁺:CaF₂/SrF₂

J Phys Condens Matter. 2019 Jan 9;31(1):015501. doi: 10.1088/1361-648X/aaee5c. Epub 2018 Nov 30.

Authors

S P Horvath¹, J-P R Wells, M F Reid, M Yamaga, M Honda

Affiliation

¹ School of Physical and Chemical Sciences, University of Canterbury, PB 4800, Christchurch 8140, New Zealand. The Dodd-Walls Centre for Photonic and Quantum Technologies, New Zealand.

PMID: 30499454
DOI: 10.1088/1361-648X/aaee5c

Abstract

We present a comprehensive spectroscopic study of C[Formula: see text] point-group symmetry sites in Sm[Formula: see text]:CaF[Formula: see text]/SrF[Formula: see text] codoped with either NaF or LiF. Data includes electron paramagnetic resonance measurements of Zeeman and hyperfine interactions for the ground state, as well as site-selective excitation and fluorescence spectroscopy up to the [Formula: see text]G[Formula: see text] multiplet. Inclusion of the EPR data allowed us to determine unique crystal-field parameters. The parameters provide information about the geometry of the sites and the nature of the interactions between the Sm[Formula: see text] dopant and the alkaline earth co-dopant.