TY - JOUR
T1 - Cylindrical Fermi surfaces of UAs2 and UP2
AU - Wisniewski, Piotr
AU - Aoki, Dai
AU - Miyake, Kohsaku
AU - Watanabe, Narumi
AU - Inada, Yoshihiko
AU - Settai, Rikio
AU - Haga, Yoshinori
AU - Yamamoto, Etsuji
AU - Onuki, Yoshichika
N1 - Funding Information:
This work was supported by the Grant-in-Aid for Scientific Research COE(10CE2004) from Ministry of Education, Science, Sports and Culture. D.A. and P.W. acknowledge the support by the Japan Society for the Promotion of Science in frames of the Research Fellowship for Young Scientists and the Postdoctoral Fellowship for Foreign Researchers.
PY - 2000/6/1
Y1 - 2000/6/1
N2 - We grew single crystals of tetragonal UAs2 and UP2 using chemical transport method. The residual resistivity ratio of 580 and 2900, respectively, indicated high quality of samples. Shubnikov-de Haas effect measurements performed on whisker single crystals of both compounds revealed seven fundamental oscillations in UAs2 and two in UP2. Five oscillations in UAs2 correspond to the cylindrical Fermi surfaces. The cyclotron masses in UAs2 were determined to range from 0.33 m0 to 4.5 m0. The two-dimensional Fermi surfaces are due to the strongly flattened magnetic Brillouin zone, the sequence of conducting U planes separated by weakly conducting As planes and, possibly, the anisotropic hybridization of 5f electrons.
AB - We grew single crystals of tetragonal UAs2 and UP2 using chemical transport method. The residual resistivity ratio of 580 and 2900, respectively, indicated high quality of samples. Shubnikov-de Haas effect measurements performed on whisker single crystals of both compounds revealed seven fundamental oscillations in UAs2 and two in UP2. Five oscillations in UAs2 correspond to the cylindrical Fermi surfaces. The cyclotron masses in UAs2 were determined to range from 0.33 m0 to 4.5 m0. The two-dimensional Fermi surfaces are due to the strongly flattened magnetic Brillouin zone, the sequence of conducting U planes separated by weakly conducting As planes and, possibly, the anisotropic hybridization of 5f electrons.
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U2 - 10.1016/S0921-4526(99)00918-7
DO - 10.1016/S0921-4526(99)00918-7
M3 - Conference article
AN - SCOPUS:17144446486
SN - 0921-4526
VL - 281-282
SP - 769
EP - 770
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
T2 - Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99)
Y2 - 24 August 1999 through 28 August 1999
ER -