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Osakabe, Toyotaka; Munakata, Koji*; Ishii, Yuta*; Kimura, Hiroyuki*; Yamauchi, Hiroki
no journal, ,
no abstracts in English
Tateiwa, Naoyuki; Haga, Yoshinori; Yamamoto, Etsuji
no journal, ,
Many studies have been done fro the co-existence of the superconductivity and the ferromagnetism in UGe, URhGe, and UCoGe. In this presentation, we will show our results of the magnetization measurements under pressure obtained with our ceramic anvil high pressure cell. The superconducting transition temperature 
becomes maximum at around a phase boundary of the ferromagnetic phases FM1 and FM2. We have found that the pressure dependence of the width of the spin fluctuation spectrum 
also exhibits a peaked structure around the boundary. This suggests a correlation between the superconductivity and the ferromagnetic fluctuations developed around the boundary. We will mention the Rhode-Wohlfarth relation under pressure.
Hattori, Takanori; Sano, Asami; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*; Arima, Hiroshi*
no journal, ,
10 years has passed since the operation of J-PARC, and 5 years has passed since the PLANET started the user program. After the completion of the beamline in 2013, the developments in devices and techniques of the high-pressure neutron experiments have been done. In this talk, the recent developments and current status are introduced.
Sano, Asami; Hattori, Takanori; Funakoshi, Kenichi*; Abe, Jun*; Machida, Shinichi*; Arima, Hiroshi*
no journal, ,
To conduct neutron diffraction experiment under high pressure and high temperature conditions, 6-axis multi-anvil press ATSUHIME has been installed into PLANET, MLF in J-PARC. This unique press enables us to conduct neutron diffraction under extreme conditions of high pressure and high temperature and enable us to investigate structures of hydrous mineral, hydrous magma and metal hydrides under Earth's mantle conditions. However, the achievable pressure is still limited below 10 GPa, which corresponds to 300 km depth. In the presentation technical developments to reach the pressure range over 20 GPa will be discussed.