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Characteristic fermi surface properties of V$$_2$$Ga$$_5$$, CoGa$$_3$$, TiGa$$_3$$, ZrGa$$_3$$, and ZrAl$$_3$$ with different tetragonal structures

Teruya, Atsushi*; Takeda, Masataka*; Nakamura, Ai*; Harima, Hisatomo*; Haga, Yoshinori  ; Uchima, Kiyoharu*; Hedo, Masato*; Nakama, Takao*; Onuki, Yoshichika*

A series of metallic compounds with the tetragonal symmetry are investigated to reveal the relationship between the structural dimensionality and the electronic structure. By combining the de Haas-van Alphen experiments and band structure calculations, a flat one-dimensional Fermi surface is revealed in V$$_2$$Ga$$_5$$ which is characterized by a chain like arrangement of atoms. On the other hand, Co$$_3$$Ga with the nearly cubic symmetry has pyramidal Fermi surfaces with flat {111} planes, similar to Ni$$_3$$Ga with the ideal cubic structure.

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Category:Physics, Multidisciplinary

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