Dielectric and conductivity properties of defect double Perovskite La1/3TaO3 single crystal (결함 이중 Perovskite La1/3TaO3 단결정의 유전 및 전도특성)

Jeong Ho Sohn (손정호)

doi:10.6111/JKCGCT.2020.30.6.215

Dielectric and conductivity properties of defect double Perovskite La1/3TaO3 single crystal

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2020, 30(6), pp.215-219
DOI : 10.6111/JKCGCT.2020.30.6.215
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : October 26, 2020
Accepted : November 13, 2020
Published : December 31, 2020

Jeong Ho Sohn ¹

¹가야대학교

Accredited

ABSTRACT

After the specimen of A-site defect double Perovskite La1/3TaO3 single crystal was manufactured, the dielectricproperties have been studied between the temperature range of 10 and 800 K. Under 500 K, a paraelectric behavior hasbeen shown, and above 550 K, a dielectric anomaly and a thermal history of dielectric constant has been shown. Anactivation energy by measurement of ac-conductivity has been the largest with 1.83 eV in the areas below 560 K, 0.35 eVin the areas of 560~690 K, and 0.28 eV in the areas of high temperature above 690 K. From these results, it is assumedthat in the areas below 500 K, La3+-ion and vacancy-site are arranged in disorder to maintain a paraelectric phase. And inthe areas near 560 K with the highest activation energy, a dielectric anomaly is attributes to rearrangement of La3+-ion dueto conduction to vacancy-site or jumping.

KEYWORDS

La1/3TaO3 single crystal, A-site defect double Perovskite, Dielectric property, ac-Conductivity

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[journal] W. V. Gool / 1969 / Lattice self-potentials and madelung constants for some compounds / J. Mater. Sci 4 : 95~

[journal] M. Yoshimura / 1974 / Stabilization of highvalence states of ions at B-site of Perovskite structure ABO3 : Electrostatic potential in Perovskite structure / Bull, Tokyo Inst. of Tech 120 : 13~

[book] R.D. Mitchell / 2002 / Perovskites Modern and Ancient / Almaz, Press

[journal] M. Abe / 1974 / X-ray study of the deficient perovskite La2/3TiO3 / Mat. Res. Bull 9 : 147~

[journal] E. J. Hubibregtse / 1951 / electrical properties of sodium tungsten bronze / Phys. Rev 84 : 142~

[journal] D. Ridgly / 1955 / The preparation of a strontium-niobium bronze with the perovskite structure / J. Am. Chem. Soc 77 : 6132~

[journal] H. P. Rooksby / 1965 / Perovskite-type rare-earth niobates and tantalates / J. Am. Chem. Soc 48 : 447~

[journal] P. N. Iyer / 1967 / Double oxides containing niobium, tantalum, or protactinium. III. Systems involving the rare earths / Acta Cryst 23 : 740~

[journal] J. H. Sohn / 1995 / Crystal growth and dielectric properties of La1/3MO3(M=Nb, Ta)by infrared floating zone method / J. Kor. Assoc. Cryst. Growth 5 : 233~

[journal] Y. Kawakami / 1998 / Ionic conduction of lithium for perovskite-type compounds, LixLa(1x)/3NbO3 and(Li0. 25La0. 25)1xSr0. 5xNbO3 / J. Solid State Electrochem 2 : 206~

[journal] K. Mizumoto / 1997 / Lithium ion conduction in A-site deficient perovskites R1/4Li1/4TaO3(R=La, Nd, Sm and Y) / Solid State Ionics 116 : 263~

[journal] K. Y. Yang / 2008 / Effect of Li+ addition on crystal structure and electrical conduction of highly defective La1/3NbO3 perovskite / J. Phys. Chem. Solids 69 : 393~

[journal] A. N. Salak / 2005 / Structure-dependent microwave dielectric properties of(1x)La(Mg1/2Ti1/2)O3xLa2/3TiO3ceramics / J. Appl. Phys 98 : 034101~

[journal] D. D. Khalyavin / 2007 / Structure and dielectric characterization of a new A-site deficient La5/3MgTaO6 perovskite / J. Solid State Chem 180 : 41~

[journal] T. Goto / 1995 / A. C. electrical conduction and transport number measurements for defectperovskite LaTa3O9 / J. Ceram. Soc. Jpn 103 : 50~

[journal] 손정호 / 2010 / Dielectric properties of A-site defect perovskite La1/3NbO3 single crystal / 한국결정성장학회지 / 한국결정성장학회 20(6) : 249~253

[journal] I.S. Kim / 1992 / Electrical conductivity and metal-nonmetal transition in the perovskiterelated layered system Can+1TinO3n+1-δ(n=2, 3 and ∞) / J. Solid State Chem 101 : 77~

[journal] Y. Inaguma / 1992 / Quantum paraelectricity in a Perovskite La1/2Na1/2TiO3 / J. Phys. Soc. Jpn 61 : 3831~

[book] K.H. Hellwege / 1981 / Ferroelectrics and Related Substances / Springer : 16~

[journal] C. S. Tu / 1994 / Sequence of dielectric anomalies and high-temperature relaxation behavior in Na1/2Bi1/2TiO3 / Phys. Rev. B 49 : 11150~

[journal] J. E. Bauerle / 1969 / Study of solid electrolyte polarization by a complex admittance method / J. Phys. Chem. Solids 30 : 2657~

[journal] A.M. George / 1988 / Mixed iono-electronic conduction in β-LaNb3O9 / J. Phys. Chem. Solids 49 : 743~

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Dielectric and conductivity properties of defect double Perovskite La1/3TaO3 single crystal

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Dielectric and conductivity properties of defect double Perovskite La1/3TaO3 single crystal

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