Growth, optical spectroscopy and crystal field investigation of YAl3(BO3)4 single crystals doped with tripositive praseodymium

“…The spin glass state is recovered under pressure. In Nd 2 Mo 2 O 7 ferromagnet with (r>rc), a reentrant magnetic state is stabilized well below the Curie temperature, associated with a giant anomalous Hall effect [3]. We present new results in Nd 2 Mo 2 O 7 by neutron diffraction (at ambient and under pressure), small angle neutron scattering and µSR.…”

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confidence: 83%

“…Concerning technical applications such compounds, e.g. YAl 3 (BO 3 ) 4 , may be important materials for laser techniques and optical second harmonic generation [3]. …”

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confidence: 99%

“…YAl 3 (BO 3 ) 4 , may be important materials for laser techniques and optical second harmonic generation [3]. By means of magnetic susceptibility and specific heat measurements, x-ray and unpolarized neutron diffraction investigations on powder and single-crystal samples, simultaneous long-range antiferromagnetic Fe and Nd ordering in NdFe 3 ( 11 BO 3 ) 4 with R 3 2 chemical structure has been found at temperatures below T N = 30.5(5) K down to 1.6 K. At temperatures down to 20 K to the propagation vector is k hex = [0,0,3/2] and becomes slightly incommensurate at lower temperatures.…”

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confidence: 99%

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R₂Mo₂O₇pyrochlores under high pressure

Mirebeau¹,

Apetrei²,

Goncharenko³

et al. 2007

Acta Cryst Sect A

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Currently, we are investigating whether comparable phase transitions with a similar underlying mechanism are also present in the other three compounds.[1]Kanke,Y., Kato, K., Chem. Mater., 1997, 9, 141. [2] Kato, K., Kanke, Y., Friese, K., Z. Krist, 1997, 212, 110. [3] Friese, K., Jarchow, O.,Kato, K, Kanke, Y., Z. Krist., 1997, 212, 859 As promising materials for optoelectronics and with respect to interesting magnetic properties due to competing magnetic sublattices and magnetoelectric interactions, the family of borates RM 3 (BO 3 ) 4 with R = rare earths or Y, La-Lu and M = Al, Ga, Cr, Fe, Sc is of current interest. GdFe 3 (BO 3 ) 4 has been found [1,2] o exhibit a structural phase transition at 156 K, antiferromagnetic order of the magnetic Fe 3+ moments at 36 K, followed by a spin reorientation phase transition at 9 K. Moreover there is evidence for an induced ferroelectric phase in this material in external magnetic fields which demonstrates a strong correlation between the magnetic order and the dielectric properties of GdM 3 (BO 3 ) 4 . Concerning technical applications such compounds, e.g. YAl 3 (BO 3 ) 4 , may be important materials for laser techniques and optical second harmonic generation [3].

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“…2 Experimental Tm:YAB crystals were grown by means of the flux growth method [4]. The dopant was added as Tm 2 O 3 in 5.0% Tm/Y molar ratio.…”

Section: Introduction Tmmentioning

confidence: 99%

Optical spectra of Tm³⁺‐doped YAl₃(BO₃)₄ single crystals

Cavalli

Jaque

Leonyuk

et al. 2007

Phys. Status Solidi (c)

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PACS 61.72. Ji, 78.40.Ha, 78.55.Hx Flux grown YAl 3 (BO 3 ) 4 (YAB) crystals doped with Tm 3+ have been characterised by optical spectroscopy techniques. The absorption and emission spectra in the UV-VIS-NIR region have been measured at 10 and 298 K. The visible emission decay profiles have been measured at room temperature. The low temperature spectra have been used to obtain the energy level scheme of the optically active ion in YAB. The Judd-Ofelt parametrization scheme has been applied to the analysis of the room temperature absorption spectra in order to evaluate the intensity parameters, the branching ratios and the radiative lifetimes of the emitting states. These have been compared with the experimental values. Introduction Tm3+ is an attractive laser ion for operation in the visible and NIR regions [1]. Its absorption band at about 800 nm allows pumping by means of commercial laser diodes, making it suitable for the realization of compact solid state laser devices. In this paper we present the results of our investigations on Tm 3+ -doped into YAl 3 (BO 3 ) 4 (YAB), a very promising host crystal for laser ions. In fact it shows good optical, mechanical and thermal properties [2], and its high nonlinear coefficient (d eff = 1.42 pm V

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Growth, optical spectroscopy and crystal field investigation of YAl3(BO3)4 single crystals doped with tripositive praseodymium

Cited by 51 publications

References 25 publications

Simultaneous antiferromagnetic Fe³⁺and Nd³⁺ordering in NdFe₃(¹¹BO₃)₄

Simultaneous antiferromagnetic Fe³⁺and Nd³⁺ordering in NdFe₃(¹¹BO₃)₄

R₂Mo₂O₇pyrochlores under high pressure

Optical spectra of Tm³⁺‐doped YAl₃(BO₃)₄ single crystals

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Growth, optical spectroscopy and crystal field investigation of YAl3(BO3)4 single crystals doped with tripositive praseodymium

Cited by 51 publications

References 25 publications

Simultaneous antiferromagnetic Fe3+and Nd3+ordering in NdFe3(11BO3)4

Simultaneous antiferromagnetic Fe3+and Nd3+ordering in NdFe3(11BO3)4

R2Mo2O7pyrochlores under high pressure

Optical spectra of Tm3+‐doped YAl3(BO3)4 single crystals

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Simultaneous antiferromagnetic Fe³⁺and Nd³⁺ordering in NdFe₃(¹¹BO₃)₄

Simultaneous antiferromagnetic Fe³⁺and Nd³⁺ordering in NdFe₃(¹¹BO₃)₄

R₂Mo₂O₇pyrochlores under high pressure

Optical spectra of Tm³⁺‐doped YAl₃(BO₃)₄ single crystals