Zhang Jiaying, Wang Yang, Li Tian, Peng Xinying, Wang He, Ma Donglin
Center for Quantum Physics and Intelligent Sciences, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China.
Nanotechnology. 2024 Sep 24;35(49). doi: 10.1088/1361-6528/ad77dd.
CoSb has emerged as an important two-dimensional (2D) atomic crystal for its potential application in energy conversion and superconductivity. Controllable growth in terms of thickness and structural phase is necessary to elucidate its intrinsic properties at the 2D limit. Here we demonstrate the chemical vapour deposition of ultrathin hexagonal CoSb crystals on the mica substrate. The thickness could be controlled by growth time and the structural phase could be tuned by the precursor's supply ratio. Electrical transport measurements show that the chemical vapor deposition-grown ultrathin hexagonal CoSb is a good metal with non-Fermi liquid behavior. No apparent superconductivity has been observed down to 2.8 K.
由于在能量转换和超导方面的潜在应用，CoSb已成为一种重要的二维（2D）原子晶体。为了在二维极限下阐明其本征性质，在厚度和结构相方面进行可控生长是必要的。在此，我们展示了在云母衬底上化学气相沉积超薄六方CoSb晶体。厚度可通过生长时间控制，结构相可通过前驱体的供应比例调节。电输运测量表明，化学气相沉积生长的超薄六方CoSb是一种具有非费米液体行为的良好金属。在2.8 K以下未观察到明显的超导性。
