Quantum anomalous hall effect 2013
WebFeb 22, 2016 · Chang, C.-Z. et al. Experimental observation of the quantum anomalous Hall effect in a magnetic topological insulator. Science 340, 167–170 (2013). Article ADS Google Scholar ... WebMar 17, 2024 · Elevating the temperature needed to realize the quantum anomalous Hall effect (QAHE) to above 77 K or higher is the key to practical applications of the effect as well as many others based on it. Here, we briefly review the recent progresses, especially the experimental ones, on searching for magnetic topological insulators that can exhibit the ...
Quantum anomalous hall effect 2013
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WebQuantum anomalous Hall (QAH) insulators are two-dimensional (2D) insulating states exhibiting properties similar to those of quantum Hall states but without external magnetic field. They have quantized Hall conductance…
WebThe quantized version of the anomalous Hall effect has been predicted to occur in magnetic topological insulators, but the experimental realization has been challenging. Here, we report the observation of the quantum anomalous Hall (QAH) effect in thin films of chromium-doped (Bi,Sb)2Te3, a magnetic topological insulator. At zero … WebJan 11, 2024 · The quantum anomalous Hall insulator, first discovered in 2013, achieves the same effect but without the intervention of any magnetic field, the electrons speeding along the edge as if on a highway, without dissipating energy, somewhat like a superconductor.
WebThe quantum anomalous Hall effect is defined as a quantized Hall effect realized in a system without an external magnetic field. The quantum anomalous Hall effect is a novel manifestation of topological structure in many-electron systems and may have potential applications in future electronic devices. In recent years, the quantum anomalous Hall … WebApr 11, 2024 · A quantum anomalous Hall (QAH) state is a two-dimensional topological insulating state that has a quantized Hall resistance of h/(Ce²) and vanishing longitudinal resistance under zero magnetic ...
WebApr 14, 2024 · Magnetic two-dimensional (2D) topological insulators with spontaneous magnetization have been predicted to host quantum anomalous Hall effects (QAHEs). For organic topological insulators, the QAHE only exists in honeycomb or Kagome organometallic lattices based on theoretical calculations. Recently, coloring-triangle (CT) …
WebApr 19, 2016 · Abstract. In this chapter, we report the observation of the quantum anomalous Hall effect (QAHE) in Cr-doped (Bi,Sb) 2 Te 3 TI thin films grown by MBE method. At zero magnetic field and ultralow temperature (30 mK), the gate-tuned anomalous Hall resistance reaches the predicted quantized value of h / e 2, accompanied by a … kacm conference 2023WebSep 26, 2024 · The system thus exhibits the anomalous quantum Hall effect associated with the nontrivial geometric phase, which is presumably tunable through the choice of … lawas seasideWebApr 30, 2024 · The QHE induced by spontaneous magnetization in such insulators is called quantum anomalous Hall effect (QAHE), ... In 2013, the QAHE with quantized Hall conductance of e 2 /h was experimentally observed in thin films of chromium-doped (Bi, Sb) 2 Te 3 with the temperature down to 30 mK . kacmar sports medicineWebQuantum anomalous Hall (QAH) insulators are two-dimensional (2D) insulating states exhibiting properties similar to those of quantum Hall states but without external … kacl infusionWebSep 26, 2024 · The system thus exhibits the anomalous quantum Hall effect associated with the nontrivial geometric phase, which is presumably tunable through the choice of parameters at hand. We report the topological properties, ... Science 2013, 340, 167–170. [Google Scholar] ... lawas seaside beach resortWeb我们邀请了东南大学物理学院的夏钶教授来南大访问，并作学术报告。报告题目：Anomalous Hall Effect in Non-collinear Anti-Ferromagnetic L12-type Mn3Ir报告时间地 … law as showbiz todayWebQuantum anomalous Hall goes intrinsic. Quantum anomalous Hall effect—the appearance of quantized Hall conductance at zero magnetic field—has been observed in thin films of … law assignment writing