[Th-P1-E] Topological Phases and Phase Transitions

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[Th-P1-E-03] Two-Dimensional Weyl Semimetal Phase Emerging in an Electric-Field-Driven Topological Phase Transition

〇Hiroshi Irie¹, Takafumi Akiho¹, Norio Kumada¹, Koji Muraki¹ (1. NTT BRL (Japan))

We experimentally demonstrate a Weyl semimetal phase emerging in an electric-field-driven topological phase transition in dual-gated InAs/InGaSb quantum wells using capacitance spectroscopy and transport. This establishes a symmetry-driven transition beyond the conventional single-point gap-closing scenario.