Absorption and Fluorescence Spectra of Hexagonal SmCl3 and Their Zeeman Effects

Abstract

The absorption and fluorescence spectra of SmCl3 have been studied at 4°K and the Zeeman effects of many lines obtained in a magnetic field of 35 100 G. The lower group of levels obtained chiefly from the fluorescence spectrum can be unambiguously identified as the multiplet components of the 6H and 6F levels. The situation for the higher levels is confused. The splitting into Stark components of many of the levels could be determined with their symmetry and magnetic properties.

Optical behaviour of samarium doped potassium yttrium double phosphates

“…In the Sm(III) aqua ion spectrum [20,21] and phosphate glasses [22] this separation was evaluated as 1030 cm À 1 and 1065 cm À 1 , respectively, and seems to be comparable to that in our system. The comparison of the crystal-field splitting of separated levels for the title double phosphates and the aqua ion spectrum is possible because the theoretical and experimental studies of many of the 206 possible multiplet levels in the 4f 6 configuration have been made by Magno and Dieke [23]. Their experimental results agree with those obtained by Gobrecht [24].…”

ZnS:Sm and ZnS:Cu, Sm electroluminescent phosphors

“…In this case the peak at 460 nm has not been obseved. Identification has been made by comparison with the data of Magno and Deike (1962). ZnS: Sm phosphor is a poor electroluminescent.…”

Low-Temperature Magnetic Properties of Some Hexagonal Rare-Earth Trihalides

“…The shape of the lines changed progressively from the expected second derivative (but with unobserved inner wings) at the lowest temperature to sigmoid as the transition temperature was approached, A search was made for other lines below 0.428 K; nothing was found in the range 4.40-5. 15 MHz. The signal-to-noise ratio for the observed lines at the lowest temperature was 10:1.…”

“…Hutchison and Wong 8 have carried out an electron spin resonance (ESR) study of the various rare-earth ions diluted in LaCl 3 . Dieke and others [9][10][11][12][13][14][15][16][17][18][19][20][21][22] have made extensive studies of the optical spectra of the rare-earth trihalides. Those measurements yield g values, values of the crystal field splittings, and nuclear hyperfine interactions which can be carried over to the study of the concentrated crystals.…”