| Autor: |
Susilo, Resta A., Kwon, Chang Il, Lee, Yoonhan, Salke, Nilesh P., De, Chandan, Seo, Junho, Kang, Beomtak, Hemley, Russell J., Dalladay-Simpson, Philip, Wang, Zifan, Kim, Duck Young, Kim, Kyoo, Cheong, Sang-Wook, Yeom, Han Woong, Kim, Kee Hoon, Kim, Jun Sung |
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| Zdroj: |
Nature Communications; 6/20/2024, Vol. 15 Issue 1, p1-8, 8p |
| Abstrakt: |
Symmetry-protected band degeneracy, coupled with a magnetic order, is the key to realizing novel magnetoelectric phenomena in topological magnets. While the spin-polarized nodal states have been identified to introduce extremely-sensitive electronic responses to the magnetic states, their possible role in determining magnetic ground states has remained elusive. Here, taking external pressure as a control knob, we show that a metal-insulator transition, a spin-reorientation transition, and a structural modification occur concomitantly when the nodal-line state crosses the Fermi level in a ferrimagnetic semiconductor Mn3Si2Te6. These unique pressure-driven magnetic and electronic transitions, associated with the dome-shaped Tc variation up to nearly room temperature, originate from the interplay between the spin-orbit coupling of the nodal-line state and magnetic frustration of localized spins. Our findings highlight that the nodal-line states, isolated from other trivial states, can facilitate strongly tunable magnetic properties in topological magnets. The coupling between topological electronic properties and magnetic order offers a promising route for magnetoelectric control with great potential for both applications and fundamental physics. Here, Susilo et al demonstrate the rich tunability of magnetic properties in nodal-line magnetic semiconductor Mn3Si2Te6 using pressure as control knob. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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