Room-temperature skyrmion phase in bulk Cu₂OSeO₃ under high pressures.

ABSTRACT: A skyrmion state in a noncentrosymmetric helimagnet displays topologically protected spin textures with profound technological implications for high-density information storage, ultrafast spintronics, and effective microwave devices. Usually, its equilibrium state in a bulk helimagnet occurs only over a very restricted magnetic field-temperature phase space and often in the low-temperature region near the magnetic transition temperature T_c We have expanded and enhanced the skyrmion phase region from the small range of 55 to 58.5 K to 5 to 300 K in single-crystalline Cu₂OSeO₃ by pressures up to 42.1 GPa through a series of phase transitions from the cubic P2₁3, through orthorhombic P2₁2₁2₁ and monocli

SUBMITTER: Deng L 

PROVIDER: S-EPMC7183172 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature