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Al
Metoki, Naoto; Yamauchi, Hiroki; Kitazawa, Hideaki*; Suzuki, Hiroyuki*; Hagihara, Masato*; Frontzek, M. D.*; Matsuda, Masaaki*; Fernandez-Baca, J. A.*
no journal, ,
Magnetic structure of NdPdAl has been studied by means of neutron powder diffraction. We observed remarkable magnetic reflections with the modulation vector 
= (1/2 0 0) below the ordering temperature 
= 1.2 K. We found a collinear magnetic structure of Nd moment of 2.9(1) 
at 0.3 K parallel to the 
-axis, where the ferromagnetically ordered 
planes stack with four Nd layer period of ++-- sequence along the direction with the distance between adjuscent Nd layers to be 
. This is very similar to CePdAl with = (0.23 0.23 0) and the Ce moment parallel to the -axis. These structures with in-plane modulation 
is a consequence of the two dimensional nature of fermi surface topology in this family, coming from unique crystal structure with very long tetragonal unit cell and large distance 
7
between the rare earth layers separated by Al and two Pd layers.
Si studied by three dimensional ARPESFujimori, Shinichi; Kobata, Masaaki; Takeda, Yukiharu; Okane, Tetsuo; Saito, Yuji; Fujimori, Atsushi; Yamagami, Hiroshi; Yamamoto, Etsuji; Haga, Yoshinori; Onuki, Yoshichika*
no journal, ,
no abstracts in English
Matsubara, Akihiro*; Fujita, Natsuko; Ishii, Kunikazu*
no journal, ,
no abstracts in English
Mo
O
under magnetic fieldsKajimoto, Ryoichi; Iida, Kazuki*; Nakao, Akiko*; Moyoshi, Taketo*; Matsuda, Masaaki*; Ye, F.*; Mizuno, Yusuke*; Katsufuji, Takuro*
no journal, ,
no abstracts in English
Yokota, Terufumi
no journal, ,
no abstracts in English
Kodama, Katsuaki; Ikeda, Kazutaka*; Shamoto, Shinichi; Otomo, Toshiya*
no journal, ,
no abstracts in English
FeTiO
observed by magnetic pair distribution functionKodama, Katsuaki; Honda, Takashi*; Ikeda, Kazutaka*; Shamoto, Shinichi; Otomo, Toshiya*
no journal, ,
no abstracts in English
Si, 2Higemoto, Wataru; Ooshima, Kohei; Ito, Takashi; Kaneko, Koji; Goko, Tatsuro*; Robert, S.*; Onuki, Yoshichika*
no journal, ,
no abstracts in English
Fe
O
Shamoto, Shinichi; Matsuura, Masato*; Akatsu, Mitsuhiro*; Ito, Takashi; Nemoto, Yuichi*; Shibata, Kaoru
no journal, ,
no abstracts in English
GeHaga, Yoshinori; Matsumoto, Yuji*; Tateiwa, Naoyuki; Yamamoto, Etsuji; Nakamura, Ai*; Honda, Fuminori*; Aoki, Dai*
no journal, ,
no abstracts in English
Tateiwa, Naoyuki; Posp
il, J.*; Haga, Yoshinori; Sakai, Hironori; Yamamoto, Etsuji; Matsuda, Tatsuma*
no journal, ,
We have carried out an analysis of magnetic data in 69 uranium, 7 neptunium and 4 plutonium ferromagnets with the spin fluctuation theory developed by Takahashi (Y. Takahashi, J. Phys. Soc. Jpn. 
, 3553 (1986)). Itinerant ferromagnets of the 
transition metals and their intermetallics follow a generalized Rhodes-Wohlfarth relation between 
and 
viz., 
. Here, 
, 
, 
and 
are the spontaneous and effective magnetic moments, the Curie temperature and the width of spin fluctuation spectrum in energy space, respectively. The same relation is satisfied for 
in the actinide ferromagnets.
Ieda, Junichi; Maekawa, Sadamichi
no journal, ,
Recently spintronics phenomenon based on antiferromagnets has drawn much attention. In 2014, we proposed a mechanism that the Rashba spin-orbital interaction produces magnetic anisotropy due to competition with magnetic exchange interaction in a ferromagnetic thin film. This time the theory is extended to antiferromagnet with the Rashba spin-orbital interaction. Conduction electron spin that hops between the nearest neighbor sites on a lattice with antiferromagnetic order in two sublattice is considered. Two kinds of lattice models which feel an on-site exchange interaction and the Rashba interaction of (a) the same sign for the nearest neighbor hopping, or (b) the different sign for the next nearest neighbor hopping are investigated. Former is a model of the Rashba effect occurring at the interface between the antiferromagnetic thin film and another substance and the latter is for the Rashba effect in the antiferromagnet in which the inversion symmetry locally broken, such as CuMnAs. For each model, the angle dependence of the total energy on the antiferromagnetic order-parameter direction is obtained and the expression of the uniaxial magnetic anisotropy constant is derived. In model (a), it is shown that transition from easy plane anisotropy to perpendicular magnetic anisotropy occurs with increasing Rashba interaction. On the other hand, in model (b), it is shown that Rashba interaction always favors the perpendicular magnetic anisotropy as a result of competition with exchange interaction.
NiO
Nakajima, Kenji; Kajimoto, Ryoichi
no journal, ,
no abstracts in English
SR signals from substrates for thin film growth; A Basic study for thin film researches by using ultra-slow muonIto, Takashi; Higemoto, Wataru; Koda, Akihiro*; Shimomura, Koichiro*
no journal, ,
no abstracts in English
Onishi, Hiroaki
no journal, ,
no abstracts in English