Phase-Controlled 2D Iron Sulfide

Three phases on demand

A molecular sieve-assisted CVD strategy enables precise synthesis of ultrathin hexagonal, tetragonal, and non-stoichiometric 2D iron sulfide nanoflakes on substrates, offering a route to other multiphase 2D compounds.

Bicheng, Wang · Hong-Yu, Yao · Hong, Wenting · Zhaoan, Hong · He, Xu · TaiKun, Wang · Jian, Chuanyong · Ju, Qiankun · Cai, Qian · Sun, Zhihua · Liu, Wei

Small 2023

Specifications

电导率

{'zh': '5.4 × 10⁵', 'en': ''} S m⁻¹

电导率

{'zh': '5.8 × 10⁵', 'en': ''} S m⁻¹

电导率

{'zh': '1.9 × 10⁶', 'en': ''} S m⁻¹

Advantages

Superconducting transition at 4 K for tetragonal FeS

Spin reorientation at ≈30 K with ferrimagnetism up to room temperature for Fe₇S₈ nanoflakes