Topological insulator metamaterial with giant circular photogalvanic effect

• المؤلفون الرئيسيون: Sun, X., Adamo, Giorgio, Eginligil, Mustafa, Krishnamoorthy, Harish Natarajan Swaha, Zheludev, Nikolay I., Soci, Cesare
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2021
• الموضوعات: Science::Physics; Electric Insulators; Electromagnetic Fields
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/151021
• المؤسسة: Nanyang Technological University

One of the most notable manifestations of electronic properties of topological insulators is the dependence of the photocurrent direction on the helicity of circularly polarized optical excitation. The helicity-dependent photocurrents, underpinned by spin-momentum locking of surface Dirac electrons,...