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Abstract:
Na2Tb4(MoO4)7 crystals have been grown by the Czochralski technique for the first time for magneto-optical applications. Structure refinement of XRD data confirms that the compound crystallizes in the tetragonal system I41/a, with scheelite structure. The as-grown crystal exhibits moderate thermal stability and weak thermal expansion anisotropy (αc/αa≈1.08), and the hardness is about 4.7 Moh. Transmittance spectra indicated that the Na2Tb4(MoO4)7 crystal presents a high transparency from 600 nm to 1500 nm after annealing in O2 atmosphere at 973 K for 20 h. The Faraday effect and the temperature dependence of the magnetic susceptibility have been investigated, which demonstrate that the Na2Tb4(MoO4)7 crystal exhibits paramagnetic behavior over the experimental temperature-range 2-300 K and yields a Faraday rotation which is about 1.6 times as large as that of Tb3Ga5O12 crystal. Na2Tb4(MoO4)7 crystal is therefore a promising Faraday material in particular for new magneto-optical applications in the visible-near IR wavelength region. © 2015 Elsevier B.V.
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Journal of Crystal Growth
ISSN: 0022-0248
Year: 2015
Volume: 421
Page: 8-12
1 . 4 6 2
JCR@2015
1 . 7 0 0
JCR@2023
ESI HC Threshold:265
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
SCOPUS Cited Count: 11
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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