SUCRA(さくら: Saitama University Cyber Repository of Academic Resources)は、埼玉大学に在籍する研究者の学術雑誌論文、紀要論文、科学研究費補助金成果報告書、学位論文、研究発表プレゼン資料などを登録し、広く世界に発信しています。 埼玉大学に在籍する皆様は、著作物をSUCRAを通じて発信することができます。詳しくは「成果物の登録方法」をご覧ください。
It is shown that the conduction band of typical Kondo insulator YbB12 can be expressed rather well by a simple tight-binding model of 5d_ orbitals on Yb. The (ddσ) overlapping integral is considered to be produced by the hopping through B12 clusters.The density of states is also calculated. If the mixing with the f-states is properly taken into account, this model can be a useful starting point for incorporating the strong correlation effect, and can consistently explain all the thermal, thermoelectric, transport and magnetic properties of YbB12.