カイラル無機磁性体におけるカイラル磁気ソリトン格子の観測

抄録

We report chiral magnetic ordering in ferromagnetic inorganic compounds T_1/3MS₂ (T = Cr and Mn, M = Nb and Ta) with a chiral space group of P6₃22. We measured the magnetization, powder neutron diffraction and small angle electron diffraction experiments. The experimental results indicate formation of long periodic helimagnetic ordering and chiral magnetic soliton lattice, and were in good agreement with the theoretical prediction based on the chiral magnetic soliton formation. Therefore, we propose that the magnetic ordering in ferromagnetic T_1/3MS₂ is not ferromagnetic, but chiral magnetic ordering.