Long Periodic Helimagnetic Ordering in CrM 3S6 (M = Nb and Ta)

6th European Conference on Neutron Scattering

Kousaka, Y.^1,2 ; Ogura, T.^3 ; Zhang, J.^4,5 ; Miao, P.^4 ; Lee, S.^4 ; Torii, S.^4 ; Kamiyama, T.^4,6 ; Campo, J.^7 ; Inoue, K.^1,2,8 ; Akimitsu, J.^1,2,3

Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima

739-8526, Japan^1

Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima

739-8526, Japan^2

Department of Physics and Mathematics, Aoyama-Gakuin University, Kanagawa, Sagamihara

252-5258, Japan^3

Institute of Materials Structure Science, KEK, Ibaragi, Tsukuba

305-0801, Japan^4

China Spallation Neutron Source, Institute of High Energy Physics, Chinese Academy of Sciences, Dongguan, Guangdong

523803, China^5

Sokendai (Graduate University for Advanced Studies), Hayama, Kanagawa

240-0115, Japan^6

Aragon Materials Science Institute, CSIC, University of Zaragoza), Facultad de Ciencias, Zaragoza

50009, Spain^7

Institute for Advanced Materials Research, Hiroshima University, Higashihiroshima, Hiroshima

739-8526, Japan^8

关键词: High-resolution powder neutron diffraction;    Polycrystalline samples;    Powder neutron diffraction;    Satellite peaks;    Space Groups;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012061/pdf
DOI  :  10.1088/1742-6596/746/1/012061

来源: IOP

【 摘 要 】

We report long periodic chiral helimagnetic orderings in ferromagnetic inorganic compounds CrM3S6(M = Nb and Ta) with a chiral space group of P6322. Magnetization in polycrystalline samples and high resolution powder neutron diffraction were measured. Our powder neutron diffraction measurements in CrM3S6successfully separated nuclear and magnetic satellite peaks, having the period of hundreds of angstroms along the c-axis. Therefore, we propose that the magnetic ordering in ferromagnetic CrM3S6 is not ferromagnetic, but long periodic chiral helimagnetic ordering.