Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kubo, Katsunori
AIP Advances (Internet), 8(10), p.101313_1 - 101313_6, 2018/10
Times Cited Count:3 Percentile:14.57(Nanoscience & Nanotechnology)Okuda, Tetsuji*; Kajimoto, Ryoichi; Noda, Masaaki*; Kuwahara, Hideki*
AIP Advances (Internet), 8(10), p.101339_1 - 101339_5, 2018/10
Times Cited Count:1 Percentile:4.34(Nanoscience & Nanotechnology)Hiraka, Haruhiro*; Oyama, Kenji*; Kosaka, Masashi*; Matsumura, Daiju
AIP Advances (Internet), 8(10), p.101424_1 - 101424_5, 2018/10
Times Cited Count:1 Percentile:4.34(Nanoscience & Nanotechnology)Mamiya, Hiroaki*; Oba, Yojiro; Terada, Noriki*; Watanabe, Norimichi*; Hiroi, Kosuke; Shinohara, Takenao; Oikawa, Kenichi
no journal, ,
So far, neutron diffractometry has been a unique tool to clarify spin arrangements. However, it is not easy to measure the neutron diffraction under extreme sample environments such as high pressure and high magnetic field because such environments often require large equipments surrounding the samples and prevent the measurement of the scattered neutron. To overcome this issue, we focused on neutron transmission spectra, which includes the attenuation caused by the neutron diffraction. The neutron transmission spectra can be easily measured using only a transmission monitor without scattering detector. This presentation reports the first observation of the neutron transmission spectra generated by a typical spin order in nickel oxides. The results clearly show the neutron transmission spectroscopy is a promising tool for the study of the spin arrangements.
Tateiwa, Naoyuki; Haga, Yoshinori; Yamamoto, Etsuji
no journal, ,
We study the dynamical magnetic property under high pressure in uranium ferromagnetic superconductor UGe from the analysis of magnetic data with Takahashi's spin fluctuation theory. We determined the pressure dependencies of spin fluctuation parameters and , the widths of the spin fluctuation spectrum in the energy and the momentum spaces, respectively. and show anomalous behavior around pressure region where the superconductivity appears. We suggests that the superconductivity in UGe is mediated by pressure-enhanced spin fluctuation developed around the phase boundary of two ferromagnetic phases FM1 and FM2.
Shinohara, Takenao; Kai, Tetsuya; Hiroi, Kosuke; Oikawa, Kenichi; Su, Y. H.; Hayashida, Hirotoshi*; Matsumoto, Yoshihiro*; Parker, J. D.*; Kiyanagi, Yoshiaki*
no journal, ,