当前位置：
X-MOL 学术
›
J. Phys. Chem. C
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Atomically Thin 1T-FeCl2 Grown by Molecular-Beam Epitaxy
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2020-04-17 , DOI: 10.1021/acs.jpcc.0c03050 Xuhan Zhou 1 , Bartosz Brzostowski 2 , Artur Durajski 3 , Meizhuang Liu 1 , Jin Xiang 1 , Tianran Jiang 1 , Zhiqiang Wang 1 , Shenwei Chen 1 , Peigen Li 1 , Zhihao Zhong 1 , Andrzej Drzewiński 2 , Marcin Jarosik 3 , Radosław Szczęśniak 3, 4 , Tianshu Lai 1, 5 , Donghui Guo 1 , Dingyong Zhong 1, 5
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2020-04-17 , DOI: 10.1021/acs.jpcc.0c03050 Xuhan Zhou 1 , Bartosz Brzostowski 2 , Artur Durajski 3 , Meizhuang Liu 1 , Jin Xiang 1 , Tianran Jiang 1 , Zhiqiang Wang 1 , Shenwei Chen 1 , Peigen Li 1 , Zhihao Zhong 1 , Andrzej Drzewiński 2 , Marcin Jarosik 3 , Radosław Szczęśniak 3, 4 , Tianshu Lai 1, 5 , Donghui Guo 1 , Dingyong Zhong 1, 5
Affiliation
|
Two-dimensional (2D) magnetic materials have attracted much attention due to their unique magnetic properties and promising applications in spintronics. Here, we report on the growth of ferrous chloride (FeCl2) films on Au(111) and graphite with atomic thickness by molecular-beam epitaxy (MBE) and the layer-dependent magnetic properties by density functional theory (DFT) calculations. The growth follows a layer-by-layer mode with adjustable thickness from sub-monolayer to a few layers. Four types of moiré superstructures of a single-layer FeCl2 on graphite and two types of atomic vacancies on Au(111) have been identified based on high-resolution scanning tunneling microscopy (STM). It turned out that the single- and few-layer FeCl2 films grown on Au(111) exhibit a 1T structure. The DFT calculations reveal that a single-layer 1T-FeCl2 has a ferromagnetic ground state. The minimum-energy configuration of a bilayer FeCl2 is satisfied for the 1T–1T structure with ferromagnetic layers coupled antiferromagnetically. These results make FeCl2 a promising candidate as ideal electrodes for spintronic devices providing large magnetoresistance.
中文翻译：
分子束外延生长的原子薄1T-FeCl 2
二维（2D）磁性材料因其独特的磁性和在自旋电子学中的应用前景而备受关注。在这里，我们通过分子束外延（MBE）报告了原子厚度的Au（111）和石墨上氯化亚铁（FeCl 2）薄膜的生长，并通过密度泛函理论（DFT）计算了层依赖的磁性。生长遵循层到层的模式，厚度可从亚单层调整到几层。基于高分辨率扫描隧道显微镜（STM），已经鉴定出石墨上单层FeCl 2的四种类型的莫尔超结构和Au（111）上的两种类型的原子空位。事实证明单层和多层FeCl 2在Au（111）上生长的薄膜呈现1T结构。DFT计算表明，单层1T-FeCl 2具有铁磁基态。具有铁磁层反铁磁耦合的1T-1T结构满足双层FeCl 2的最小能量构型。这些结果使FeCl 2成为具有大磁阻的自旋电子器件的理想电极。
更新日期：2020-04-24
中文翻译：
分子束外延生长的原子薄1T-FeCl 2
二维（2D）磁性材料因其独特的磁性和在自旋电子学中的应用前景而备受关注。在这里，我们通过分子束外延（MBE）报告了原子厚度的Au（111）和石墨上氯化亚铁（FeCl 2）薄膜的生长，并通过密度泛函理论（DFT）计算了层依赖的磁性。生长遵循层到层的模式，厚度可从亚单层调整到几层。基于高分辨率扫描隧道显微镜（STM），已经鉴定出石墨上单层FeCl 2的四种类型的莫尔超结构和Au（111）上的两种类型的原子空位。事实证明单层和多层FeCl 2在Au（111）上生长的薄膜呈现1T结构。DFT计算表明，单层1T-FeCl 2具有铁磁基态。具有铁磁层反铁磁耦合的1T-1T结构满足双层FeCl 2的最小能量构型。这些结果使FeCl 2成为具有大磁阻的自旋电子器件的理想电极。
京公网安备 11010802027423号