Synthesis and spectroscopic study of lutetium pyrosilicate single crystals doped with trivalent europium

Bretheau-Raynal, F.; Tercier, N.; Blanzat, B.; Drifford, M.

doi:10.1016/0025-5408(80)90145-2

Cited by 22 publications

(10 citation statements)

References 16 publications

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“…Single-crystal growth was achieved with a crucible-free method involving the floating-zone technique associated with a biellipsoid image furnace, described in detail in previous papers (Bretheau-Raynal, Dalbiez, Drifford & Blanzat, 1979;Bretheau-Raynal, Tercier, Blanzat & Drifford, 1980). …”

Section: Origin Of the Samplesmentioning

confidence: 99%

Crystal data for Lu₂Si₂O₇

Bretheau-Raynal¹,

Lance²,

Charpin³

1981

J Appl Cryst

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Section: Origin Of the Samplesmentioning

confidence: 99%

Crystal data for Lu₂Si₂O₇

Bretheau-Raynal¹,

Lance²,

Charpin³

1981

J Appl Cryst

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“…Among the other structure types, type-E is orthorhombic (Pnma and Pna2 1 ), type-D is monoclinic (P2 1 /a) and type-G is psuedo-orthorhombic (P2 1 /n). The majority of the rare-earth pyrosilicates were originally investigated to understand their performance as scintillation crystals in gamma ray or X-ray detectors, or as host materials for optically-active rare-earths [2][3][4]. Recently, the rare-earth pyrosilicates were investigated to understand their thermal expansion coefficients, which are beneficial from the perspective of environmentally benign thermal barrier coatings [5].…”

Section: Introductionmentioning

confidence: 99%

Crystal Growth of Quantum Magnets in the Rare-Earth Pyrosilicate Family R2Si2O7 (R = Yb, Er) Using the Optical Floating Zone Method

et al. 2019

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We report on the crystal growth of rare-earth pyrosilicates, R 2Si 2O 7 for R = Yb and Er using the optical floating zone method. The grown crystals comprise members from the family of pyrosilicates where the rare-earth atoms form a distorted honeycomb lattice. C-Yb 2Si 2O 7 is a quantum dimer magnet with field-induced long range magnetic order, while D-Er 2Si 2O 7 is an Ising-type antiferromagnet. Both growths resulted in multi-crystal boules, with cracks forming between the different crystal orientations. The Yb 2Si 2O 7 crystals form the C-type rare-earth pyrosilicate structure with space group C 2 / m and are colorless and transparent or milky white, whereas the Er-variant is D-type, P 2 1 / b , and has a pink hue originating from Er 3 +. The crystal structures of the grown single crystals were confirmed through a Rietveld analysis of the powder X-ray diffraction patterns from pulverized crystals. The specific heat of both C-Yb 2Si 2O 7 and D-Er 2Si 2O 7 measured down to 50 mK indicated a phase transition at T N ≈ 1.8 K for D-Er 2Si 2O 7 and a broad Schottky-type feature with a sharp anomaly at 250 mK in an applied magnetic field of 0.8T along the c-axis in the case of C-Yb 2Si 2O 7 .

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“…This demonstrated that the symmetry of the Yb:LPS crystal still maintains the primitive monoclinic structure with space group of C2/m. The unit-cell parameters are similar to the published data of the pure LPS crystal [10].…”

Section: Article In Pressmentioning

confidence: 66%