Synthesis of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) and its electrical properties

W. Sugimoto; T. Tahara; Y. Sugahara; K. Kuroda

Synthesis of A_1-xA′_xNbO₃ (A = Na⁺, K⁺; A′ = La³⁺, Sr²⁺) and its electrical properties

W. Sugimoto^*, T. Tahara, Y. Sugahara, K. Kuroda

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Polycrystalline samples of A_1-xA′_xNbO₃ (A = Na⁺, K⁺; A′ = La³⁺, Sr²⁺) were prepared by solid-state reactions and the relationship between the structure and electrical properties was examined. Single-phase products were obtained for Na_1-xLa_xNbO₃ (x≤0.1), K_1-xLa_xNbO₃ (x≤0.15), Na_1-xSr_xNbO₃ (x≤0.3), and K_1-xSr_xNbO₃ (x≤0.5). The structures of the sodium-containing compounds and potassium-containing compounds were indexed according to a pseudocubic and cubic symmetry, respectively. The resistivity measurements showed semiconductive behavior for the lanthanum-containing samples. The strontium-containing samples showed semiconducting properties for x≤0.2, while a transition to metallic conduction at low temperature was observed for x>0.2.

Original language	English
Pages (from-to)	361-366
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	453
Publication status	Published - 1997 Jan 1
Event	Proceedings of the 1996 MRS Fall Symposium - Boston, MA, USA Duration: 1996 Dec 2 → 1996 Dec 5

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{d2e13823ddd441df8f5f7379e257c1d5,

title = "Synthesis of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) and its electrical properties",

abstract = "Polycrystalline samples of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) were prepared by solid-state reactions and the relationship between the structure and electrical properties was examined. Single-phase products were obtained for Na1-xLaxNbO3 (x≤0.1), K1-xLaxNbO3 (x≤0.15), Na1-xSrxNbO3 (x≤0.3), and K1-xSrxNbO3 (x≤0.5). The structures of the sodium-containing compounds and potassium-containing compounds were indexed according to a pseudocubic and cubic symmetry, respectively. The resistivity measurements showed semiconductive behavior for the lanthanum-containing samples. The strontium-containing samples showed semiconducting properties for x≤0.2, while a transition to metallic conduction at low temperature was observed for x>0.2.",

author = "W. Sugimoto and T. Tahara and Y. Sugahara and K. Kuroda",

year = "1997",

month = jan,

day = "1",

language = "English",

volume = "453",

pages = "361--366",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1996 MRS Fall Symposium ; Conference date: 02-12-1996 Through 05-12-1996",

}

TY - JOUR

T1 - Synthesis of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) and its electrical properties

AU - Sugimoto, W.

AU - Tahara, T.

AU - Sugahara, Y.

AU - Kuroda, K.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Polycrystalline samples of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) were prepared by solid-state reactions and the relationship between the structure and electrical properties was examined. Single-phase products were obtained for Na1-xLaxNbO3 (x≤0.1), K1-xLaxNbO3 (x≤0.15), Na1-xSrxNbO3 (x≤0.3), and K1-xSrxNbO3 (x≤0.5). The structures of the sodium-containing compounds and potassium-containing compounds were indexed according to a pseudocubic and cubic symmetry, respectively. The resistivity measurements showed semiconductive behavior for the lanthanum-containing samples. The strontium-containing samples showed semiconducting properties for x≤0.2, while a transition to metallic conduction at low temperature was observed for x>0.2.

AB - Polycrystalline samples of A1-xA′xNbO3 (A = Na+, K+; A′ = La3+, Sr2+) were prepared by solid-state reactions and the relationship between the structure and electrical properties was examined. Single-phase products were obtained for Na1-xLaxNbO3 (x≤0.1), K1-xLaxNbO3 (x≤0.15), Na1-xSrxNbO3 (x≤0.3), and K1-xSrxNbO3 (x≤0.5). The structures of the sodium-containing compounds and potassium-containing compounds were indexed according to a pseudocubic and cubic symmetry, respectively. The resistivity measurements showed semiconductive behavior for the lanthanum-containing samples. The strontium-containing samples showed semiconducting properties for x≤0.2, while a transition to metallic conduction at low temperature was observed for x>0.2.

UR - http://www.scopus.com/inward/record.url?scp=0030672670&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030672670&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0030672670

SN - 0272-9172

VL - 453

SP - 361

EP - 366

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1996 MRS Fall Symposium

Y2 - 2 December 1996 through 5 December 1996

ER -

Synthesis of A_1-xA′_xNbO₃ (A = Na⁺, K⁺; A′ = La³⁺, Sr²⁺) and its electrical properties

Abstract

ASJC Scopus subject areas

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