Single-crystal graphene on Ir(110)
Single-crystal graphene on Ir(110)
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DOI：
10.1103/physrevb.105.165405
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发表时间：
2021-09
影响因子：
3.7
通讯作者：
S. Kraus;Felix Huttmann;J. Fischer;T. Knispel;Ken Bischof;A. Herman;M. Bianchi;R. Stan;A. J. Holt;V. Caciuc;S. Tsukamoto;H. Wende;P. Hofmann;N. Atodiresei;T. Michely
中科院分区：
文献类型：
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作者：
S. Kraus;Felix Huttmann;J. Fischer;T. Knispel;Ken Bischof;A. Herman;M. Bianchi;R. Stan;A. J. Holt;V. Caciuc;S. Tsukamoto;H. Wende;P. Hofmann;N. Atodiresei;T. Michely
在低对称性衬底Ir（110）上通过C2H4在1500 K下的热分解合成了石墨烯的单晶片。利用扫描隧道显微镜、低能电子衍射、角分辨光电子能谱和从头算密度泛函理论研究了吸附石墨烯片及其与基底的莫尔条纹的结构和电子性质。吸附的石墨烯层形成具有其电子性质的相应调制的nm波长的波图案。这种波图案被证明，使模板吸附的芳香族分子和单轴生长的有机金属线。不限于此，Ir（110）上的石墨烯也是用于2D层生长的通用衬底，并且使得可以在重新构造的Ir（110）上生长外延层。ar X iv：2 10 9. 04 19 8v 1 [co nd-m at. m tr lsc i] 9 S ep 2 02 1 Ir（110）2上的单晶石墨烯
A single-crystal sheet of graphene is synthesized on the low-symmetry substrate Ir(110) by thermal decomposition of C2H4 at 1500 K. Using scanning tunneling microscopy, low-energy electron diffraction, angle-resolved photoemission spectroscopy, and ab initio density functional theory the structure and electronic properties of the adsorbed graphene sheet and its moiré with the substrate are uncovered. The adsorbed graphene layer forms a wave pattern of nm wave length with a corresponding modulation of its electronic properties. This wave pattern is demonstrated to enable the templated adsorption of aromatic molecules and the uniaxial growth of organometallic wires. Not limited to this, graphene on Ir(110) is also a versatile substrate for 2D-layer growth and makes it possible to grow epitaxial layers on ureconstructed Ir(110). ar X iv :2 10 9. 04 19 8v 1 [ co nd -m at .m tr lsc i] 9 S ep 2 02 1 Single-crystal graphene on Ir(110) 2