Emergence of Chiral Helimagnetic Order in Chromium-intercalated Tantalum Disulfide CrTa3S6 Powders with Controlled Intercalation
Ayaka Toshima, Keigo Mizutani, Yusuke Kousaka, Kazuki Ohishi, Hiroaki Shishido, Yoshihiko Togawa
Abstract
We report a highly sensitive change in magnetic properties of a chiral Cr-intercalated transition-metal dichalcogenide CrxTa3S6. Magnetization curves and small-angle neutron scattering data revealed that the powder samples exhibit chiral helimagnetism with a Cr intercalation quantity x below 0.996, while they show ferromagnetism above 1.000. The emergence and temperature-dependent evolution of the helimagnetic period are argued in terms of sample dimensions of powders and microfabricated crystals.
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