Mn atomic layers under inert covers of graphene and hexagonal boron nitride prepared on Rh（111）

作     者：Yu Zhang Yanfeng Zhang Donglin Ma Qingqing Ji Wei Fang Jianping Shi Teng Gao Mengxi Liu Yabo Gao Yubin Chen Limei Xu Zhongfan Liu 

作者机构：ing 10087 1 China Center for Nanochemistry (CNC) Beijing National Laboratory for Molecular Sciences State Key Laboratory for Structural Chemistry of Unstable and Stable Species College of Chemistry and Molecular Engineering Peking University Beijing 100871 China International Center for Quantum Materials Peking University Beijing 100871 China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2013年第6卷第12期

页      面：887-896页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 51222201  51290272  51121091  and 21073003)  and the Ministry of Science and Technology of China (Grant Nos. 2012CB921404  2011CB921903  2011CB933003  and 2012CB933404) 

主　　题：graphene STM manganese intercalation Rh(111) 

摘      要：Intercalation of metal atoms into the interface of graphene and its supporting substrate has become an intriguing topic for the sake of weakening the interface coupling and constructing metal atomic layers under inert covers. However, this novel behavior has rarely been reported on the analogous hexagonal boron nitride （h-BN） synthesized on metal substrates. Here, we describe a comparative study of Mn intercalation into the interfaces of graphene/Rh（111） and h-BN/Rh（111）, by using atomically-resolved scanning tunneling microscopy （STM） and density functional theory （DFT） calculations. The intercalation was performed by annealing as-deposited Mn clusters, and the starting temperature of Mn intercalation into h-BN/Rh（111） was found to be ~80 ~C higher than that for graphene/Rh（111）. Moreover, the intercalated islands of h-BN/Mn/Rh（111） usually possess more irregular shapes than those of graphene/Mn/Rh（111）, as illustrated by temperature-dependent STM observations. All these experimental facts suggest a stronger interaction of Mn with h-BN/Rh（111） than that with graphene/Rh（111）.