Presentation Information

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[11a-N304-5]Theory of valley relaxation spectroscopy based on transconductance anomalies in multilayer WSe2 transistors

〇Katsunori Wakabayashi¹, Adhikary Souren¹, Tomoaki Kameda^1,2, Kazuhito Tsukagoshi¹ (1.NIMS/MANA, 2.Kwansei Gakuin Univ.)

Keywords:

TMDC,valley transport,quantum Transport

We theoretically propose valley relaxation spectroscopy based on transconductance anomalies in multilayer WSe2 transistors. Gate-induced K-Gamma valley redistribution modifies the effective mobility and appears clearly in gm=dI_d/dV_g. By analyzing transient and frequency-dependent responses, we show that gm can serve as an electrical probe of intervalley relaxation dynamics.

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