幾何学的効果が誘起する遷移金属化合物の電子系の異常

抄録

The effect of geometry, particularly, geometric frustration on electronic properties of itinerant electron magnets are discussed. As an example, the competition between intra- and inter-dimer interaction, and the characteristic lattice dynamics in Mo₃Sb₇ are briefly reviewed. A new possible and promising candidate of the metallic frustrated lattice, the stella quadrangula lattice, found in compounds with the η-carbide type structure, etc., is introduced.