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Titolo:
Electrochemical intercalation of lithium in layered niobates AB(2)Nb(3)O(10) (A = K, Rb, Cs; B = Ca, Sr) and their superconductivity
Autore:
Nagai, I; Abe, Y; Kato, M; Koike, Y; Kakihana, M;
Indirizzi:
Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan Tokyo Inst Technol Yokohama Kanagawa Japan 2268503 anagawa 2268503, Japan Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Aoba Ku, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 Ku, Sendai, Miyagi 9808579, Japan
Titolo Testata:
PHYSICA C
, volume: 357, anno: 2001,
parte:, 1
pagine: 393 - 396
SICI:
0921-4534(200108)357:<393:EIOLIL>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
PEROVSKITE;
Keywords:
electrochemical intercalation; layered niobate; Li content; a-axis length;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Kakihana, M Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, 4259 Nagatsuta, Yokohama,Kanagawa 2268503, Japan Tokyo Inst Technol 4259 Nagatsuta Yokohama Kanagawa Japan 2268503
Citazione:
I. Nagai et al., "Electrochemical intercalation of lithium in layered niobates AB(2)Nb(3)O(10) (A = K, Rb, Cs; B = Ca, Sr) and their superconductivity", PHYSICA C, 357, 2001, pp. 393-396

Abstract

We have succeeded in preparing Li-intercalated layered niobium oxide Li(x)AB(2)Nb(3)O(10) (A = K, Rb, Cs; B = Ca, Sr) by an electrochemical technique. The host compounds AB(2)Nb(3)O(10) were synthesized by a solid state reaction method at 850-1150 degreesC for 10-12 h. All of the intercalated compounds showed superconductivity at 4-6 K. In the cases of A = Rb, B = Ca, andA = Cs, B = Ca, no superconductivity appeared up to x = 0.17, for x = 0.34and 0.46 T-c was constant with maximum value. and for x = 0.62 T-c decreased slightly. On the other hand, the correlation between T-c (onset) and a-axis length demonstrates that T-c tends to increase with a-axis length increasing, which was found in Li(0.34)AB(2)Nb(3)O(10) with optimum Li content. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 00:14:34