Crystal growth and characterization of Li<i><sub>x</sub></i>La<sub>(1−</sub><i><sub>x</sub></i><sub>)/3</sub>NbO<sub>3</sub> using Czochralski method - Archive ouverte HAL Access content directly
Journal Articles Journal of the Ceramic Society of Japan Year : 2020

Crystal growth and characterization of LixLa(1−x)/3NbO3 using Czochralski method

Abstract

Single crystals of LixLa(1−x)/3NbO3 were grown in air using Czochralski method from La-poor melt. The lithium-ion conductivity of the crystals was measured. The length and maximum diameter of the boule grown were 23 and 20 mm, respectively. The boule contained no inclusions but was covered with a very thin polycrystalline film of LaNbO4 and LiNbO3 in its upper region. The composition of the crystals grown was estimated to be x = 0.15 and the starting melt composition was x = 0.20. The ionic conductivity of the crystal was anisotropic with σ[100] = 2.8 × 10−4 S cm−1 and σ[001] = 9.7 × 10−5 S cm−1 at 306 K. The activation energy, Ea of these conductivities was almost the same in the range of 0.28–0.29 eV. Further, we discussed the anisotropic lithium-ion conductivity of the crystal.
Fichier principal
Vignette du fichier
128_20026.pdf (1.76 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

hal-02921282 , version 1 (07-12-2020)

Identifiers

Cite

Shuya Minegishi, Takuya Hoshina, Takaaki Tsurumi, Kheirreddine Lebbou, Hiroaki Takeda. Crystal growth and characterization of LixLa(1−x)/3NbO3 using Czochralski method. Journal of the Ceramic Society of Japan, 2020, 128 (8), pp.481-485. ⟨10.2109/jcersj2.20026⟩. ⟨hal-02921282⟩
59 View
157 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More