Abstract
Recently LiF-RF3 (R = rare-earth element, REE) systems have been widely studied and discussed. The interest in these systems arises from the application of LiRF4 single crystals and lithium yttrium fluoride (LYF) in quantum electronics [1, 2]. This family contains members that exhibit excellent processing characteristics in addition to a high capacity for isomorphous replacement by trivalent REE ions. These characteristics include, among others, relatively low melting points, congruent melting for several phases, and the ability to use inert media other than actively fluorinating ones. An investigation of LYF generation spectra showed that they can compete favorably with the most popular materials used in quantum electronics in those instances where high-power radiation is not required. These facts suggested that LYF could become one of the first multicomponent fluorides to be used as commercial laser crystals. Crystal production preceded investigations of phase equilibria in LiF -RF3 systems (see below). Since the early 1970s LiRF4 crystals were included in searches for new REE compounds needed to solve problems in quantum electronics.
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Fedorov, P.P., Sobolev, B.P., Medvedeva, L.V., Reiterov, B.M. (2002). Revised Phase Diagrams of LiF-RF3 (R = La-Lu, Y) Systems. In: Givargizov, E.I., Mel’nikova, A.M. (eds) Growth of Crystals. Рост Кристаллов / Rost Kristallov / Growth of Crystals, vol 21. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-0537-2_13
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DOI: https://doi.org/10.1007/978-1-4615-0537-2_13
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