Large Cyclotron Effective Mass Detected by de Haas-van Alphen Effect in YbCu2Si2

Dai Aoki (1, 2) , Fuminori Honda (2) , Yoshiya Homma (2) , Dexin Li (2) , Rikio Settai (3) , Hisatomo Harima (4) , Yoshichika Onuki (5)

1 IMAPEC - Instrumentation, Material and Correlated Electrons Physics
2 Tohoku University [Sendai]
3 Department of Physics [Niigata]
4 Kobe University
5 University of the Ryukyus [Okinawa]

De Haas-van Alphen experiments were performed on the valence fluctuation compound YbCu2Si2. For the field direction close to the c-axis in the tetragonal structure, a very large cyclotron effective mass of 43m(0) was detected on branch beta, which corresponds to the nearly cylindrical Fermi surface. This mass is one of the largest cyclotron masses detected experimentally in Yb compounds.

Mots clés: Fermi-surface

Domaines: Physique [physics]

Dai Aoki, Fuminori Honda, Yoshiya Homma, Dexin Li, Rikio Settai, et al.. Large Cyclotron Effective Mass Detected by de Haas-van Alphen Effect in YbCu2Si2. Journal of the Physical Society of Japan, 2015, 84 (3), pp.035002. ⟨10.7566/jpsj.84.035002⟩. ⟨hal-01586123⟩