Magnetoresistance and de Haas-van Alphen Effect in UPt3

Noriaki Kimura; Rikio Settai; Yoshichika Onuki; Hiroyuki Toshima; Etsuji Yamamoto; Kunihiko Maezawa; Haruyoshi Aoki; Hisatomo Harima

doi:10.1143/jpsj.64.3881

Magnetoresistance and de Haas-van Alphen Effect in UPt₃

Noriaki Kimura, Rikio Settai, Yoshichika Onuki, Hiroyuki Toshima, Etsuji Yamamoto, Kunihiko Maezawa, Haruyoshi Aoki, Hisatomo Harima

Author information

Noriaki Kimura
Faculty of Science, Osaka University, Toyonaka, Osaka 560
Rikio Settai
Faculty of Science, Osaka University, Toyonaka, Osaka 560
Yoshichika Onuki
Faculty of Science, Osaka University, Toyonaka, Osaka 560
Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319–11
Hiroyuki Toshima
Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305
Etsuji Yamamoto
Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319–11
Kunihiko Maezawa
Faculty of Engineering, Toyama Prefectural University, Toyama 939–03
Haruyoshi Aoki
National Research Institute for Metals, Tsukuba, Ibaraki 305
Hisatomo Harima
College of Integrated Arts and Sciences, University of Osaka Prefecture, Sakai, Osaka 593

Keywords: UPt₃, Fermi surface, transverse magnetoresistance, de Haas-van Alphen effect

JOURNAL RESTRICTED ACCESS

1995 Volume 64 Issue 10 Pages 3881-3889

DOI https://doi.org/10.1143/jpsj.64.3881

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Abstract

We have done the transverse magnetoresistance and the de Haas-van Alphen (dHvA) experiments in UPt₃. The magnetoresistance increases in the whole field direction. UPt₃ is thus a compensated metal, possessing no open orbits. As for the dHvA experiment, we have observed at least three new branches. One of them is in the basal plane and the others are around the [0001] direction. The branches with dHvA frequencies of 2.7× 10⁷, Oe and 4.9× 10⁷, Oe in the field along [0001] possess large masses of 40--50m₀. These results have been discussed on the basis of the 5f-itinerant Fermi surface model.

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