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Enhanced carrier mass near the metal insulator transition in La1−xSrxTiO3 and Y1−xCaxTiO3

✍ Scribed by K. Kumagai; T. Suzuki; Y. Taguchi; Y. Okada; Y. Fujishima; Y. Tokura

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
191 KB
Volume
199-200
Category
Article
ISSN
0921-4526

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✦ Synopsis

Studies of the low-temperature heat capacity in the titanates La~_~Sr~TiOs and Y:_xCaxTiOs have showed a significant increase of the coefficient of electronic specific heat, 7, due to the strong electronic correlations on approachinp the metal-insulator transition boundary. The Mott transition is characterized by the divergent increase of renormalized electron mass with band filling.

📜 SIMILAR VOLUMES

Study of first-order metal-insulator tra
Study of first-order metal-insulator transition in the strongly correlated electron system Y1 − xCaxTiO3
✍ F Iga; T Naka; T Matsumoto; N Shirakawa; K Murata; Y Nishihara 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 222 KB

The metal-to-insulator (MI) transition in the Y1 \_xCa~TiO3 system is known to occur at x = 0.35. Furthermore, near this critical metallic region, electrical resistivity and magnetic susceptibility show a broad peak around 170 K and are accompanied by clear thermal hysteresis. This thermal hysteresi