Magnetic and Fermi surface properties of EuGa

Nakamura, Ai*; Hiranaka, Yuichi*; Hedo, Masato*; Nakama, Takao*; Miura, Yasunao*; Tsutsumi, Hiroki*; Mori, Akinobu*; Ishida, Kazuhiro*; Mitamura, Katsuya*; Hirose, Yusuke*; Sugiyama, Kiyohiro*; Honda, Fuminori*; Settai, Rikio*; Takeuchi, Tetsuya*; Hagiwara, Masayuki*; Matsuda, Tatsuma; Yamamoto, Etsuji  ; Haga, Yoshinori   ; Matsubayashi, Kazuyuki*; Uwatoko, Yoshiya*; Harima, Hisatomo*; Onuki, Yoshichika

High quality single crystals of EuGa have been grown from Ga flux. Electrical resistivity, magnetic susceptibility, high-field magnetization, specific heat, thermoelectric power and de Haas-van Alphen effect were investigated. Antiferromagnetic transition due to divalent Eu atoms were observed at 16.5 K. A charge density wave transition was also found under high pressure accompanied by a Fermi surface reconstruction. These observations were fully accounted for by the Fermi surface topology and corresponding band calculations.