Origin of a superlattice observed in Li_(0.9)Mo_6O_(17) by scanning tunneling microscopy

Ling Fu; Aaron M. Kraft; Martha Greenblatt; Michael C. Boyer

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Origin of a superlattice observed in Li_(0.9)Mo_6O_(17) by scanning tunneling microscopy

机译：通过扫描隧道显微镜在Li_（0.9）Mo_6O_（17）中观察到超晶格的起源

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We use scanning tunneling microscopy to study the lithium molybdenum purple bronze (Li_(0.9)Mo_6O_(17)) at room temperature. Our measurements allow us to identify the single-crystal cleave plane and show that it is possible to obtain clean cleaved surfaces reflecting the crystal structure without the complications of nanoscale surface disorder. In addition to the crystal lattice, we observe a coexisting discommensurate superlattice with wave vectors q = 0.5a~* ± 0.25b~*. We propose that the origin of the superstructure is a surface reconstruction that is driven by cleaving along a crystal plane that contains in-plane MoO_4 tetrahedra connected to out-of-plane MoO_6 octahedra through corner-sharing oxygens. When combined with spectroscopic measurements, our studies show a promising avenue through which to study the complex physics within Li_(0.9)Mo_6O_(17).

机译：我们使用扫描隧道显微镜在室温下研究锂钼紫古铜（Li_（0.9）Mo_6O_（17））。我们的测量结果使我们能够识别单晶分裂平面，并表明有可能获得反映晶体结构的干净分裂表面，而不会产生纳米级表面无序现象。除晶格外，我们还观察到了共存的不等价的超晶格，其波矢q = 0.5a〜*±0.25b〜*。我们提出，上层建筑的起源是通过沿着包含平面内MoO_4四面体的晶面分裂而驱动的表面重构，该平面内MoO_4八面体通过角共享氧连接到平面外MoO_6八面体。当与光谱测量相结合时，我们的研究显示了一个有前途的途径，通过它可以研究Li_（0.9）Mo_6O_（17）内的复杂物理。

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《Physical review》 |2016年第4期|045430.1-045430.6|共6页
作者
Ling Fu; Aaron M. Kraft; Martha Greenblatt; Michael C. Boyer;
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Department of Physics, Clark University, Worcester, Massachusetts 01610, USA;

Department of Physics, Clark University, Worcester, Massachusetts 01610, USA;

Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, USA;

Department of Physics, Clark University, Worcester, Massachusetts 01610, USA;

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1. Origin of a superlattice observed in Li0.9Mo6O17 by scanning tunneling microscopy [J] . Fu Ling, Kraft Aaron M., Greenblatt Martha, Physical review, B . 2016,第4期

机译：Li0.9Mo6O17中超晶格的起源通过扫描隧道显微镜观察
2. Case for bulk nature of spectroscopic Luttinger liquid signatures observed in angle-resolved photoemission spectra of Li_(0.9)Mo_6O_(17) [J] . Feng Wang, S.-K. Mo, J. W. Allen, Physical review. B, Condensed Matter And Materials Physics . 2006,第11期

机译：Li_（0.9）Mo_6O_（17）的角度分辨光发射光谱中观察到的光谱Luttinger液体特征的整体性质的情况
3. Rectangular(3 x 2 3~(1/2))Superlattice of a Dodecanethiol Self-Assembled Monolayer on Au(lll)Observed by Ultra-High-Vacuum Scanning Tunneling Microscopy [J] . Lars Miiller-Meskamp, Bjbrn Liissem, Silvia Karthauser, The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2005,第23期

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4. Scanning probe microscopy in mineralogical studies: about origin of the observed roughness of natural silica-rich glasses [C] . Ye A Golubev, S I Isaenko International Conference on Scanning Probe Microscopy . 2017

机译：矿物学研究中的扫描探针显微镜：关于观察到天然二氧化硅玻璃粗糙度的起源
5. Cross-sectional scanning tunneling microscopy studies of type-II superlattices and quantum wells grown by molecular beam epitaxy. [D] . Harper, John Raymond. 1999

机译：截面扫描隧道显微镜研究II型超晶格和分子束外延生长的量子阱。
6. Origin of Symmetric Dimer Images of Si(001) Observed by Low-Temperature Scanning Tunneling Microscopy [O] . Xiao-Yan Ren, Hyun-Jung Kim, Chun-Yao Niu, -1

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7. Origin of a Superlattice Observed in Li$_{0.9}$Mo$_{6}$O$_{17}$ by Scanning Tunneling Microscopy [O] . Fu, Ling, Kraft, Aaron M., Greenblatt, Martha, 2015

机译：在Li $ _ {0.9} $ mo $ _ {6} $ O $ _ {17} $中观察到超晶格的起源扫描隧道显微镜

Origin of a superlattice observed in Li_(0.9)Mo_6O_(17) by scanning tunneling microscopy

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