The role of argon in yttrium aluminates | Zendy

Kvapil Ji. | Zendy; Mánek B. | Zendy; Perner B. | Zendy; Kvapil Jos. | Zendy; Becker R. | Zendy; Ringel G. | Zendy

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The role of argon in yttrium aluminates

Author(s) -

Kvapil Ji.,

Mánek B.,

Perner B.,

Kvapil Jos.,

Becker R.,

Ringel G.

Publication year - 1988

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170230418

Subject(s) - argon , impurity , yttrium , doping , analytical chemistry (journal) , materials science , chemistry , laser , mineralogy , optics , metallurgy , optoelectronics , oxide , organic chemistry , chromatography , physics

Spectral properties of YAG and YAP grown in vacuum or under ArH 2 protective atmosphere were compared. The latter contained small amounts of argon which was detected by a laser mass spectral analysis. Ar impurity evokes brown colour of unannealed crystals and strenghtens anomalous red colour of annealed (Particularly in O 2 ) YAP crystals doped with Nd + Cr or Nd + Mo. The same red coloration of the doped YAGs is less stable.

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