Shubnikov-de Haas Oscillation in the cubic Γ3-based heavy fermion superconductor PrV2Al20

International Conference on Strongly Correlated Electron Systems 2014

Shimura, Yasuyuki^1 ; Tsujimoto, Masaki^1 ; Sakai, Akito^1,2 ; Zeng, Bin^3 ; Balicas, Luis^3 ; Nakatsuji, Satoru^1

Institute for Solid State Physics, University of Tokyo, Kashiwa

277-8581, Japan^1

I. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen

37077, Germany^2

National High Magnetic Field Laboratory, Florida State University, Tallahassee

FL

32310, United States^3

关键词: Cyclotron-effective mass;    Heavy-fermion superconductivity;    High magnetic fields;    High quality single crystals;    Hybridization effects;    Mean free path;    Shubnikov de-Haas oscillation;    Shubnikov-de-haas oscillations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/592/1/012026/pdf
DOI  :  10.1088/1742-6596/592/1/012026

来源: IOP

【 摘 要 】

PrV2Al20is the cubic Γ3doublet system that exhibits strong hybridization effects and heavy fermion superconductivity. We measured the magnetoresistance using a high quality single crystal of PrV2Al20under the DC high magnetic field up to 35 T below ∼ 0.4 K. We have succeeded in detecting the Shubnikov-de Haas (SdH) oscillation with a frequency of 250 T. Our analysis of this SdH oscillation yields the cyclotron effective mass (m∗c/m0∼ 5) and the mean-free path (l =170 Å).