EPR study of the multisite character of Nd3+ ions in zircon-type matrices YMO4 (M=V, P, As)

Growth and EPR properties of ErVO4 single crystals

“…But it is worth remembering that the spin Hamiltonian parameters in diluted systems and concentrated ones usually differ from each other signifi cantly [8]. Moreover, as was found by Misra et al [8], the EPR spectrum of the Er 3+ ion in the mixed paramagnetic hosts Ho x Y 1-x VO 4 could be clearly observed only for the samples with x < 0.3 and x  0.8. For the samples with x in the region 0.3 < x < 0.8, EPR spectra could not be observed due to complete broadening of EPR lines, presumably due to very short Er 3+ relaxation times caused by the formation of percolation clusters.…”

“…refractive index of ErVO 4 is 0.227) and meet all necessary technical specifi cations to be a very prospective material for fi ber optical communication systems [1][2][3]. They are also interesting due to their unusual magnetic characteristics and useful luminescent properties [4]. Er 3+ :YVO 4 is one of the most promising laser hosts for micro-and diode-pumped solid-state lasers that exhibit a multisite character [4,5].…”

“…They are also interesting due to their unusual magnetic characteristics and useful luminescent properties [4]. Er 3+ :YVO 4 is one of the most promising laser hosts for micro-and diode-pumped solid-state lasers that exhibit a multisite character [4,5]. ErVO 4 shows a high transmittance from visible to infrared region [6].…”

“…Er 3+ :YVO 4 is one of the most promising laser hosts for micro-and diode-pumped solid-state lasers that exhibit a multisite character [4,5]. ErVO 4 shows a high transmittance from visible to infrared region [6]. The crystals have the zircon structure and belong to the tetragonal space group I4 1 /amd (Fig.…”

“…Many papers were devoted to local sites symmetry description in YVO 4 slightly doped with erbium ions [1,[4][5][6][7][8], but a few only to EPR properties of concentrated ErVO 4 single crystals [8,9]. In this paper, we focus our attention on the concentrated media to describe their magnetic properties using EPR spectroscopy.…”