Structure, growth, and optical properties of TbAl_3(BO_3)_4 single crystal

Lu, Ji-Qing; Fu, Chu-Li; Chen, Jianzhong

doi:10.1364/ao.50.000116

Cited by 6 publications

(7 citation statements)

References 10 publications

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“…The cell parameters are a ¼ b ¼ 9:2933 Å and c ¼ 7:2496 Å . 34 The O-B-O bond angle is 120 and the B-O bond distance is 1.383 Å . In the FP-LAPW method, the unit cell is divided into two parts: non-overlapping atomic spheres centered at the atomic sites and the interstitial region.…”

Section: Methodsmentioning

confidence: 99%

“…A lot of experimental studies on the spectroscopic and optical properties of these materials have been performed, while a theoretical treatment is lacking in the literature. [23][24][25][26][27][28][29][30][31][32][33][34][35] Recently, Chaudhury et al 23 have studied the magneto-electricity and magneto-striction in TmAl 3 (BO 3 ) 4 and concluded that the magneto-electricity is related to the piezoelectric effect of the non-centrosymmetric structure. The giant magnetoelectric effect in HoAl 3 (BO 3 ) 4 has been found to increase with decreasing magnetic anisotropy.…”

mentioning

confidence: 99%

“…33 The structural and optical properties of TbAl 3 (BO 3 ) 4 single crystals have been studied in Ref. 34. The 4f n !…”

mentioning

confidence: 99%

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First principles results on TbAl3(BO3)4: A promising magneto-optical material

Saeed

Singh

Schwingenschlögl

2011

Journal of Applied Physics

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The electronic and optical properties of TbAl3(BO3)4 are determined using density functional theory. The calculated total magnetic moment of 5.96 μB is close to the expected moment of Tb3+. The frequency dependent dielectric function, refractive index, extinction coefficient, absorption, optical reflectivity, and energy loss function are explained in terms of the transitions between the valence and conduction bands. We find very high Kerr angles for ultraviolet light and potential for extension, even into the visible range by band structure design.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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First principles results on TbAl3(BO3)4: A promising magneto-optical material

Saeed

Singh

Schwingenschlögl

2011

Journal of Applied Physics

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“…In addition it provides the simplest model to track the temperature dependence. [43]. Atomic displacement parameters are anisotropic (U 11 = U 22 ≠ U 33 ) due to the hexagonal nature of the cell.…”

Section: Experimental and Computational Methodsmentioning

confidence: 99%

Probing magnetostructural correlations in multiferroicHoAl3(BO3)4

et al. 2015

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The system HoAl 3 (BO 3 ) 4 has recently been found to exhibit a large magntoelectric effect. To understand the mechanism, macroscopic and atomic level properties of HoAl 3 (BO 3 ) 4 were explored by temperature and magnetic field dependent heat capacity measurements, pressure and temperature dependent x-ray diffraction measurements, as well as temperature and magnetic field dependent x-ray absorption fine structure measurements. The experimental work was complemented by density functional theory calculations. An anomalous change in the structure is found in the temperature range where large magnetoelectric effects occur. No significant structural change or distortion of the HoO 6 polyhedra is seen to occur with magnetic field. However, the magnetic field dependent structural measurements reveal enhanced correlation between neighboring HoO 6 polyhedra. This observed response is seen to saturate near 3 T. A qualitative atomic level description of the mechanism behind the large electric polarization induced by magnetic fields in the general class of RAl 3 (BO 3 ) 4 systems (R= rare earth) is developed.

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“…Moreover, the reported TbCOB crystal exhibited an additional absorption band in the visible, which hampered the spectroscopic measurements and limited its application in this spectral region. As a matter of fact, such color centers have already been observed in Tb 3+ -based crystals, e.g., TbAl 3 (BO 3 ) 4 , KTb(WO 4 ) 2 , NaTb(MoO 4 ) 2 , and Na 2 Tb 4 (MoO 4 ) 7 , and have not been investigated in detail.…”

Section: Introductionmentioning

confidence: 99%

Crystal Growth and Characterization of Terbium-Based Borate Crystals of Sr₃Tb(BO₃)₃, Li₆Tb(BO₃)₃, and TbCa₄O(BO₃)₃: Color Centers, Spectroscopic Properties, and Optical Gain

Chen

Loiseau

Aka

et al. 2020

Crystal Growth & Design

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This work aims to evaluate the prospect for visible laser applications of three terbium-based borate single crystals, viz. Sr3Tb(BO3)3 (STB), Li6Tb(BO3)3 (LTB), and TbCa4O(BO3)3 (TbCOB). Crystals with good optical quality were grown by the Czochralski technique. Formation of color centers was observed in the crystals grown in air atmosphere and was then circumvented by applying a reducing atmosphere during the growth process. The color centers were further studied by absorption and electron paramagnetic resonance spectroscopic characterization. Thermal properties that can impact laser operation, including thermal conductivity, specific heat capacity, and thermal expansion, were characterized using the as-grown crystals. The principal refractive indices of STB and LTB were measured experimentally. Cross sections of the 4f8 → 4f8 transitions of Tb3+ in these crystals were derived from the recorded absorption and emission spectra as well as the Judd–Ofelt calculations. The fluorescence decay curves from the 5D4 excited state were recorded to yield the fluorescence lifetimes. Experimental results and theoretical calculations indicate that these terbium-based crystals have minor nonradiative processes from the 5D4 manifold, and the transition cross sections in the visible spectra range are comparable to those of the previously reported gain media. Lastly, optical gain at 543 nm was measured in these crystals in a pump–probe scheme.

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Structure, growth, and optical properties of TbAl_3(BO_3)_4 single crystal

Cited by 6 publications

References 10 publications

First principles results on TbAl3(BO3)4: A promising magneto-optical material

First principles results on TbAl3(BO3)4: A promising magneto-optical material

Probing magnetostructural correlations in multiferroicHoAl3(BO3)4

Crystal Growth and Characterization of Terbium-Based Borate Crystals of Sr₃Tb(BO₃)₃, Li₆Tb(BO₃)₃, and TbCa₄O(BO₃)₃: Color Centers, Spectroscopic Properties, and Optical Gain

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Structure, growth, and optical properties of TbAl_3(BO_3)_4 single crystal

Cited by 6 publications

References 10 publications

First principles results on TbAl3(BO3)4: A promising magneto-optical material

First principles results on TbAl3(BO3)4: A promising magneto-optical material

Probing magnetostructural correlations in multiferroicHoAl3(BO3)4

Crystal Growth and Characterization of Terbium-Based Borate Crystals of Sr3Tb(BO3)3, Li6Tb(BO3)3, and TbCa4O(BO3)3: Color Centers, Spectroscopic Properties, and Optical Gain

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Crystal Growth and Characterization of Terbium-Based Borate Crystals of Sr₃Tb(BO₃)₃, Li₆Tb(BO₃)₃, and TbCa₄O(BO₃)₃: Color Centers, Spectroscopic Properties, and Optical Gain