Fermi Surface of a Shape Memory Alloy of TiNi

Autor: Isao Matsumoto, Hiroshi Kawata, Hideki Araki, Masataka Mizuno, Jinya Katsuyama, Nobuhiro Shiotani, Yasuharu Shirai
Rok vydání: 2004
Předmět:
Zdroj: Journal of the Physical Society of Japan. 73:1627-1630
ISSN: 1347-4073
0031-9015
Popis: Direct experimental information about the geometry of the Fermi surface of Ti 48.5 Ni 51.5 whose martensitic transformation temperature is 170 K is presented for the first time. The present results have shown four sheets of the Fermi surface with the same topology, but with different shapes and sizes, as those predicted previously by band structure computations. From geometrical features of the Fermi surface, new possible nesting features of the electron surface at R and the hole surface at Γ are suggested for future theoretical computations of the generalized susceptibility and phonon spectra of this alloy system.
Databáze: OpenAIRE