Tunable and giant valley-selective Hall effect in gapped bilayer graphene

• المؤلفون الرئيسيون: Yin, Jianbo, Tan, Cheng, Barcons-Ruiz, David, Torre, Iacopo, Watanabe, Kenji, Taniguchi, Takashi, Song, Justin Chien Wen, Hone, James, Koppens, Frank H. L.
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2022
• الموضوعات: Science::Physics; Valley-Selective Hall Effect; Bilayer Membrane
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/162589
• المؤسسة: Nanyang Technological University

Berry curvature is analogous to magnetic field but in momentum space and is commonly present in materials with nontrivial quantum geometry. It endows Bloch electrons with transverse anomalous velocities to produce Hall-like currents even in the absence of a magnetic field. We report the direct obser...