论文标题
磁分子隧道杂合
Magnetic molecule tunnel heterojunctions
论文作者
论文摘要
我们表征了分子磁铁异质结，其中将稀薄至5 nm的升华的COPC膜夹在透明导电的底层二层锡锡和顶层软地面的Eutectic增益（Egain）电极之间。通过原子力显微镜确定了钴苯烷氨酸（COPC）膜的粗糙度，其结晶为几种纳米，并通过X射线衍射确认了落下平面分子的结晶序列。电流 - 电压（I-V）特性揭示了TC = 6 K处的超导间隙的发作，该间隙与更高的温度拟合到修改后的Simmons模型中，为我们的异性吻合中的磁分子提供了无可争议的证据。差分电导测量中的电压依赖性特征与分子或分子聚集体的自旋态有关，并且应该证明对量子信息设备开发很重要。
We characterize molecular magnet heterojunctions in which sublimated CoPc films as thin as 5 nm are sandwiched between transparent conducting bottom-layer indium tin oxide and top-layer soft-landing eutectic GaIn (EGaIn) electrodes. The roughness of the cobalt phthalocyanine (CoPc) films was determined by atomic force microscopy to be on the order of several nanometers, and crystalline ordering of lying-down planar molecules was confirmed by X-ray diffraction. The current-voltage (I-V) characteristics reveal the onset of a superconducting gap at Tc = 6 K, which together with higher temperature fits to a modified Simmons' model, provide incontrovertible evidence for direct quantum mechanical tunneling processes through the magnetic molecules in our heterojunctions. The voltage dependent features in the differential conductance measurements relate to spin states of single molecules or aggregates of molecules and should prove to be important for quantum information device development.
