Pressure tunable magnetic skyrmion phase in Co8Zn8Mn4 single crystals
arxiv(2024)
摘要
In a magnetic skyrmion phase, magnetic moments form vortex-like topological
textures which are of both fundamental and industrial interests. In
β-Mn-type Co-Zn-Mn alloys, chrial magnetic skyrmions emerge above room
temperature, providing a unique system for studying the skrymion physics and
exploring spintronics applications. However, the magnetic skyrmion phase is
typically confined in a narrow and limited temperature (T) and magnetic field
(H) range. Here, we demonstrate that hydrostatic pressure can expand the
skyrmion phase in the T-H phase diagram of single-crystalline
Co_8Zn_8Mn_4. At ambient pressure, signatures of skyrmions are seen
within T∼302-308 K and H∼50-100 Oe. Applying a moderate pressure of 6
kbar extends this range to T∼300-310 K and H∼50-150 Oe. However,
further escalation of pressure to 10 kbar results in a slight contraction of
the skyrmion phase. These findings underscore the sensitivity of the skyrmion
phase in Co_8Zn_8Mn_4 to external pressures, and hint at the potential of
strain engineering, particularly in β-Mn-type Co-Zn-Mn thin films, as a
promising avenue to customize the skyrmion phase.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要