عنوان	Planar Hall supercurrent and 𝛿𝜙-shift in the topological Josephson junction
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	topological insulators, Joesphson junction, planar hall effect
چکیده	We theoretically investigate Josephson junctions comprising superconductors and ferromagnets on the surface of three-dimensional topological insulators. We use Bogoliubov-deGennes formalism and show the in-plane magnetization creates a difference between the upward and downward population of Andreev modes and produces a planar Hall supercurrent. Due to the strong spin–orbit interaction of Dirac fermions, bending on the supercurrent imposes a spin transfer torque on the junction. We develop a theory and demonstrate the relation between planar Hall supercurrent and spin transfer torque. The parallel component of in-plane magnetization creates an anomalous supercurrent that can flow even in zero superconducting phase difference and make 𝛿𝜙-junction. We show in some range, 𝜋∕2𝑑 ≤ 𝑚𝑦 ≤ 𝜋∕𝑑, there is a 𝜋 shift in the Josephson supercurrent. This research advances our understanding of quantum transport in 3DTIs and highlights their potential in emerging quantum technologies.
پژوهشگران	مرتضی صالحی (نفر اول)