Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 1691-1699 |
| Number of pages | 9 |
| Journal | Materials Research Bulletin |
| Volume | 39 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2004 Sep 1 |
| Externally published | Yes |
Fingerprint
Keywords
- A. Oxides
- C. Photoelectron spectroscopy
- D. Crystal structure
- D. Electrical properties
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Metallization of La1/3NbO3 by lithium incorporation. / Yamamoto, Ayako; Uchiyama, H.; Tajima, S.
In: Materials Research Bulletin, Vol. 39, No. 11, 01.09.2004, p. 1691-1699.Research output: Contribution to journal › 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
VL - 39
SP - 1691
EP - 1699
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 11
ER -