Optical and thermal properties of crystalline Tb: KLu(WO4)2 |
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Affiliation: | 1. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;2. State Key Laboratory of Solid State Microstructure Physics, Nanjing University, Nanjing, China;3. Physics Department, Shandong University, Jinan, 250100, China;4. Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403, United States;5. State Key Laboratory of Crystal Growth, Shandong University, Jinan 250100, China;1. Crystal Growth Laboratory, LMDDD, Raja Ramanna Centre for Advanced Technology, Indore, India;2. XS&CGS, CMPD, MSG, Indira Gandhi Centre for Atomic Research, Kalpakkam, India;3. Polar Domain Engineering Group, NIMS, Namiki, Tsukuba, Japan;1. Institute for Problems in Mechanics of Russian Academy of Sciences, Moscow 119526, Russia;2. A.V. Shubnikov Institute of Crystallography of Russian Academy of Sciences, Moscow, 119333, Russia;1. Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs Applications, Centre National de Recherches en Sciences des Matériaux, B.P. 95, Hammam-Lif 2050, Tunisia;2. Département de Physique, Faculté des Sciences de Tunis, Campus ElManar, Tunis 2092, Tunisia;1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. Institute of Atomic and Molecular Physics, College of Physical Science and Technology, Sichuan University, Chengdu 610064, China;2. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China |
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Abstract: | A single crystal of Tb: KLu(WO4)2 with dimensions of 40 mm × 40 mm × 18 mm has been grown by the top-seeded solution growth (TSSG) method. The color of the crystal is brown. Absorption and fluorescence spectra were measured at room temperature. The measured specific heat is a little lower than that of Yb: KLW (0.365 J/g K) at 90 °C. The measured mean linear coefficients of thermal expansion are αa = 17.1643 × 10− 6 K− 1, αa⁎ = 14.0896 × 10− 6 K− 1, αb = 8.7938 × 10− 6 K− 1, αc = 23.1745 × 10− 6 K− 1, αc⁎ = 20.2866 × 10− 6 K− 1. The results indicate that the crystal has a large anisotropy. The refractive index was measured. |
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