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Vanishing Altermagnetism and Emergent Ferromagnetism at the Two-Dimensional Limit of CrSb
Yunlong Liu, Zixuan Wu, Qinxi Liu +8
Altermagnets offer a promising route to spintronic devices by combining spin-split electronic states with zero net magnetization, but how reduced dimensionality reshapes their magn…
The re-entrant ferromagnetism due to symmetric exchange bias in two septuple-layer MnBi2Te4 epitaxial films
Dezhi Song, Fuyang Huang, Gang Yao +10
MnBi2Te4 (MBT) is a typical magnetic topological insulator with an A-type antiferromagnetic (AFM) ground state. Here we prepared ultra-thin MBT films with controlled anti-site defe…
The spin-switch scanning tunneling microscopy: an architecture to probe electron-phonon interactions in the atomic scale
Dezhi Song, Fuyang Huang, Yu Gao +7
On the spin-valve-like ferromagnet/spin glass/ferromagnet (FM/SG/FM) structure, the tunneling current is dominated by resistance switch (RS) instead of the local density of states…
Resistance switch in ferromagnet/spin glass/ferromagnet spin valves
Dezhi Song, Fuyang Huang, Gang Yao +7
We obtain in single van-der-Waals layer of MnBi2Te4 the spin-valve-like ferromagnet/spin glass (SG)/ferromagnet architecture, where the switch of individual spin states in the SG-l…
Charge density waves and Fermi level pinning in monolayer and bilayer SnSe
Shu-Ze Wang, Yi-Min Zhang, Jia-Qi Fan +4
Materials with reduced dimensionality often exhibit exceptional properties that are different from their bulk counterparts. Here we report the emergence of a commensurate 2 $\times…
Semiconductor-metal phase transition and emergent charge density waves in 1T-ZrX (X = Se, Te) at the two-dimensional limit
Ming-Qiang Ren, Sha Han, Jia-Qi Fan +7
Charge density wave (CDW) is a collective quantum phenomenon in metals and features a wave-like modulation of the conduction electron density. A microscopic understanding and exper…