Characterization of LiNbO₃ Single-Crystal Substrates Irradiated with Electrons

Abstract

Within the framework of second-order Rayleigh-Schrödinger perturbation theory, the effects of the interaction of the electrons and longitudinal optical phonons in low-dimensional semiconducting heterostructures can be investigated in a unified way. As a result, the ground-state energy for polarons confined in a general potential can be explicitly expressed as a one-dimensional integral. Moreover, some interesting problems, such as those of polarons in quantum wells, quantum wires, and quantum dots, can be readily addressed just by taking different limits. Finally, in a general sense, it is shown on the basis of numerical calculations that the polaronic effect is enhanced with lowering dimensionality and increasing asymmetry.

Effect of -ray irradiation on performance of LiNbO3-based piezoelectric vibration sensors

“…Palatnikov et al observed the saturation of radiation-induced coloration during the defect annealing of doped and undoped LiNbO 3 materials [14]. Miyazaki et al analysed the influence of electron irradiation on the LiNbO 3 using photoacoustic spectroscopy (PAS), Fourier transform infrared (FTIR) spectroscopy, revealing that the composition of LiNbO 3 was a key factor to avoid the influence of the electron irradiation [15]. Tian et al investigated the influence of irradiation on the performance of LiNbO 3 with dosage of 6 MeV Xe 23+ , and found that the LN crystalline had an increased dielectric permittivity with high irradiation dose, but the effective piezoelectric coefficients of bulk LN crystalline nearly remained unchanged [16].…”