Study of complex magnetic structures in frustrated magnets by means of polarized neutrons

偏極中性子によるフラストレート磁性体における複雑磁気構造の研究

加倉井 和久; 脇本 秀一  ; 松田 雅昌*; 石渡 晋太郎*; 奥山 大輔*; 田口 康二郎*; 十倉 好紀*; 西 正和*; 中島 多朗*; 満田 節生*; 高橋 慶一郎*; 山野 元義*; 山崎 裕恵*; 寺田 典樹*; 北澤 英明*; 木村 宏之*; 野田 幸男; 左右田 稔*; 松浦 直人*; 廣田 和馬*

Kakurai, Kazuhisa; Wakimoto, Shuichi; Matsuda, Masaaki*; Ishiwata, Shintaro*; Okuyama, Daisuke*; Taguchi, Yasujiro*; Tokura, Yoshiki*; Nishi, Masakazu*; Nakajima, Taro*; Mitsuda, Setsuo*; Takahashi, Keiichiro*; Yamano, Motoyoshi*; Yamazaki, Hiroe*; Terada, Noriki*; Kitazawa, Hideaki*; Kimura, Hiroyuki*; Noda, Yukio; Soda, Minoru*; Matsuura, Masato*; Hirota, Kazuma*

In studying modern functional materials, one is often confronted with complex spin configurations, for example, non-collinear, incommensurate magnetic structure such as helimagnetic structure as a result of frustrated magnetic interactions. Since the giant functional responses in these materials are direct consequences of these complicated magnetic structures, the detailed knowledge of the structure is mandatory to understand the essence of the magnetic functional materials. In this presentation some recent results on complex magnetic materials such as frustrated and multiferroic systems are reported, where the polarized neutron investigations provided important insight into the complex behavior of these functional materials.