抄録
Lithium ion was successfully introduced into La1/3NbO 3 with an A-site-deficient perovskite-type structure. The crystal structure and transport properties of La1/3LixNbO 3 were investigated as a function of Li content (x = 0-0.59). The lattice parameters of La1/3LixNbO3 with an orthorhombic cell were enlarged with increasing Li content for x ≤ 0.3, and the structure was transformed to a pseudo-tetragonal cell for x = 0.44. The temperature dependence of electrical resistivity gradually changed from insulating to metallic with increasing x, and thermoelectric power measurement indicated that the carriers were electrons. In X-ray photoelectron spectra of the incorporated samples, Nb3d 4+ peaks appeared in addition to Nb3d 5+ peaks, which was consistent with the change of the transport properties. In spite of the success of metallization, no diamagnetic signal indicative of supercondcutivity was observed in La 1/3Li0.59NbO3 down to 1.8K.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1691-1699 |
| ページ数 | 9 |
| ジャーナル | Materials Research Bulletin |
| 巻 | 39 |
| 発行部数 | 11 |
| DOI | |
| 出版物ステータス | Published - 2004 9 1 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
これを引用
Metallization of La1/3NbO3 by lithium incorporation. / Yamamoto, Ayako; Uchiyama, H.; Tajima, S.
：: Materials Research Bulletin, 巻 39, 番号 11, 01.09.2004, p. 1691-1699.研究成果: Article
}
TY - JOUR
T1 - Metallization of La1/3NbO3 by lithium incorporation
AU - Yamamoto, Ayako
AU - Uchiyama, H.
AU - Tajima, S.
PY - 2004/9/1
Y1 - 2004/9/1
N2 - Lithium ion was successfully introduced into La1/3NbO 3 with an A-site-deficient perovskite-type structure. The crystal structure and transport properties of La1/3LixNbO 3 were investigated as a function of Li content (x = 0-0.59). The lattice parameters of La1/3LixNbO3 with an orthorhombic cell were enlarged with increasing Li content for x ≤ 0.3, and the structure was transformed to a pseudo-tetragonal cell for x = 0.44. The temperature dependence of electrical resistivity gradually changed from insulating to metallic with increasing x, and thermoelectric power measurement indicated that the carriers were electrons. In X-ray photoelectron spectra of the incorporated samples, Nb3d 4+ peaks appeared in addition to Nb3d 5+ peaks, which was consistent with the change of the transport properties. In spite of the success of metallization, no diamagnetic signal indicative of supercondcutivity was observed in La 1/3Li0.59NbO3 down to 1.8K.
AB - Lithium ion was successfully introduced into La1/3NbO 3 with an A-site-deficient perovskite-type structure. The crystal structure and transport properties of La1/3LixNbO 3 were investigated as a function of Li content (x = 0-0.59). The lattice parameters of La1/3LixNbO3 with an orthorhombic cell were enlarged with increasing Li content for x ≤ 0.3, and the structure was transformed to a pseudo-tetragonal cell for x = 0.44. The temperature dependence of electrical resistivity gradually changed from insulating to metallic with increasing x, and thermoelectric power measurement indicated that the carriers were electrons. In X-ray photoelectron spectra of the incorporated samples, Nb3d 4+ peaks appeared in addition to Nb3d 5+ peaks, which was consistent with the change of the transport properties. In spite of the success of metallization, no diamagnetic signal indicative of supercondcutivity was observed in La 1/3Li0.59NbO3 down to 1.8K.
KW - A. Oxides
KW - C. Photoelectron spectroscopy
KW - D. Crystal structure
KW - D. Electrical properties
UR - http://www.scopus.com/inward/record.url?scp=3242691382&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3242691382&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2004.05.005
DO - 10.1016/j.materresbull.2004.05.005
M3 - Article
AN - SCOPUS:3242691382
VL - 39
SP - 1691
EP - 1699
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 11
ER -