Synthesis of NaLnNbC (Ln=La, Nd, Sm, Gd) an their structures and electrical properties

Wataru Sugimolo; Masahiro Nailo; Yoshiyuki Sugahara; Kazuyuki Kuroda

Synthesis of NaLnNbC (Ln=La, Nd, Sm, Gd) an their structures and electrical properties

Wataru Sugimolo^*, Masahiro Nailo, Yoshiyuki Sugahara, Kazuyuki Kuroda

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Polycrystalline samples of NaiLnbO (Ln=La, Nd, Sm, Gd) were synthesized by solid-state reactions. Reduced niobates were obtained as single-phase perovskites for x=0.05 and 0.1 when Ln=La and Nd and x=0.05 when Ln=Sm. The Gd-substituted samples could not be prepared under the synthetic conditions studied. Compositional analysis of the products revealed a slight amount of sodium loss during synthesis. The structural parameters obtained from Rietveld analysis revealed an increase in unit-cell volume. All of the obtained samples showed semiconducting behavior. Similar semiconducting behavior was observed for the same x value, suggesting the weak influence of the different Ln species to the electrical properties.

Original language	English
Pages (from-to)	267-272
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	547
Publication status	Published - 1999 Dec 1

ASJC Scopus subject areas

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

Cite this

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title = "Synthesis of NaLnNbC (Ln=La, Nd, Sm, Gd) an their structures and electrical properties",

abstract = "Polycrystalline samples of NaiLnbO (Ln=La, Nd, Sm, Gd) were synthesized by solid-state reactions. Reduced niobates were obtained as single-phase perovskites for x=0.05 and 0.1 when Ln=La and Nd and x=0.05 when Ln=Sm. The Gd-substituted samples could not be prepared under the synthetic conditions studied. Compositional analysis of the products revealed a slight amount of sodium loss during synthesis. The structural parameters obtained from Rietveld analysis revealed an increase in unit-cell volume. All of the obtained samples showed semiconducting behavior. Similar semiconducting behavior was observed for the same x value, suggesting the weak influence of the different Ln species to the electrical properties.",

author = "Wataru Sugimolo and Masahiro Nailo and Yoshiyuki Sugahara and Kazuyuki Kuroda",

year = "1999",

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journal = "Materials Research Society Symposium - Proceedings",

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TY - JOUR

T1 - Synthesis of NaLnNbC (Ln=La, Nd, Sm, Gd) an their structures and electrical properties

AU - Sugimolo, Wataru

AU - Nailo, Masahiro

AU - Sugahara, Yoshiyuki

AU - Kuroda, Kazuyuki

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Polycrystalline samples of NaiLnbO (Ln=La, Nd, Sm, Gd) were synthesized by solid-state reactions. Reduced niobates were obtained as single-phase perovskites for x=0.05 and 0.1 when Ln=La and Nd and x=0.05 when Ln=Sm. The Gd-substituted samples could not be prepared under the synthetic conditions studied. Compositional analysis of the products revealed a slight amount of sodium loss during synthesis. The structural parameters obtained from Rietveld analysis revealed an increase in unit-cell volume. All of the obtained samples showed semiconducting behavior. Similar semiconducting behavior was observed for the same x value, suggesting the weak influence of the different Ln species to the electrical properties.

AB - Polycrystalline samples of NaiLnbO (Ln=La, Nd, Sm, Gd) were synthesized by solid-state reactions. Reduced niobates were obtained as single-phase perovskites for x=0.05 and 0.1 when Ln=La and Nd and x=0.05 when Ln=Sm. The Gd-substituted samples could not be prepared under the synthetic conditions studied. Compositional analysis of the products revealed a slight amount of sodium loss during synthesis. The structural parameters obtained from Rietveld analysis revealed an increase in unit-cell volume. All of the obtained samples showed semiconducting behavior. Similar semiconducting behavior was observed for the same x value, suggesting the weak influence of the different Ln species to the electrical properties.

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Synthesis of NaLnNbC (Ln=La, Nd, Sm, Gd) an their structures and electrical properties

Abstract

ASJC Scopus subject areas

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