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, Nb3d4+ peaks appeared in addition to Nb3d5+ 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 |
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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 |
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