WebJan 6, 2024 · For the six septuple-layer device tuned into the insulating regime, we observe a large longitudinal resistance and zero Hall plateau, which are characteristics of an axion … WebAug 10, 2024 · Remarkably, when applying a large range of Bz from −8.0 to 8.0 T, the magnetic field induced reorientation of surface magnetic moments results in an abrupt jump in the local density of states (LDOS), which is characterized by LDOS-change-ratio {\rm {d}}\tilde \sigma / {\rm {d}}B quantitatively.
Gapless Criterion for Crystals from Effective Axion Field
WebThe robust axion insulator state occurs in zero magnetic field, over a wide magnetic-field range and at relatively high temperatures. Moreover, a moderate magnetic field drives a … WebJul 17, 2024 · The axion insulator is a higher-order topological insulator protected by inversion symmetry. We show that, under quenched disorder respecting inversion symmetry on average, the topology of the axion insulator stays robust, and an intermediate metallic phase in which states are delocalized is unavoidable at the transition from an axion … hartford mcdonald\u0027s mi
Robust axion insulator and Chern insulator phases in a two ... - Nature
WebJul 2, 2024 · To prove existence of the axion insulator, one needs to show (i) the top and bottom surfaces act as single magnets with opposite Hall conductivities and (ii) the … WebIn this paper, we develop a simple model that can be used to address the properties of thin films and bulk crystals formed by stacking Mn (SbxBi1−x)2X4septuple layers and (Sbx,Bi1−x)2X4quintuple layers in arbitrary order. The model contains only Dirac cone degrees of freedom on each surface of each septuple or quintuple layer. WebJan 20, 2024 · The Axion is easy to grip and operate for both right- and left-handed hunters. It is not only space-saving but also features a significantly short turn-on time: due to the fast aperture F35/1.0 lens, the device is fully functional within 5 seconds of being turned on. hartford mccoy