Two-Dimensional Transition Metal Honeycomb Realized:
Hf on Ir(111)
Linfei Li
Yeliang Wang
Shengyi Xie
Xian-Bin Li
Yu-Qi Wang
Rongting Wu
Hongbo Sun
Shengbai Zhang
Hong-Jun Gao
10.1021/nl4019287.s001
https://acs.figshare.com/articles/journal_contribution/Two_Dimensional_Transition_Metal_Honeycomb_Realized_Hf_on_Ir_111_/2368213
Two-dimensional (2D) honeycomb systems
made of elements with d
electrons are rare. Here, we report the fabrication of a transition
metal (TM) 2D layer, namely, hafnium crystalline layers on Ir(111).
Experimental characterization reveals that the Hf layer has its own
honeycomb lattice, morphologically identical to graphene. First-principles
calculations provide evidence for directional bonding between adjacent
Hf atoms, analogous to carbon atoms in graphene. Calculations further
suggest that the freestanding Hf honeycomb could be ferromagnetic
with magnetic moment μ/Hf = 1.46 μ<sub>B</sub>. The realization
and investigation of TM honeycomb layers extend the scope of 2D structures
and could bring about novel properties for technological applications.
2016-02-18 17:02:52
2 D structures
TM honeycomb layers
graphene
2 D layer
Hf atoms
Hf layer
honeycomb systems
novel properties
1.46 μ B
transition metal
honeycomb lattice
carbon atoms
Ir
freestanding Hf honeycomb