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A nanorod structure has been observed on the Ho/Ge(111) surface using scanning tunneling microscopy (STM). The rods do not require patterning of the surface or defects such as step edges in order to grow as is the case for nanorods on…

Materials Science · Physics 2007-05-23 C. Eames , C. Bonet , E. W. Perkins , M. I. J. Probert , S. P. Tear

Topological properties of native folds are obtained from statistical analysis of 160 low homology proteins covering the four structural classes. This is done analysing one, two and three-vertex joint distribution of quantities related to…

Biological Physics · Physics 2007-05-23 Nelson Augusto Alves , Alexandre Souto Martinez

Deposition of Au on vicinal Si(553) surfaces results in the self-assembly of one-dimensional (1D) Au atomic wires. Charge transfer from the Au wire to the Si step edge leads to a chain of Si danglingbond orbitals with a long range ordered…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 B. Hafke , T. Witte , M. Horn-von Hoegen

An RNA molecule is structured on several layers. The primary and most obvious structure is its sequence of bases, i.e. a word over the alphabet {A,C,G,U}. The higher structure is a set of one-to-one base-pairings resulting in a…

Data Structures and Algorithms · Computer Science 2007-05-23 Michael Brinkmeier

We used DFT to study the energetics of the decomposition of alane, AlH3, on the Si(001) surface, as the acceptor complement to PH3. Alane forms a dative bond with the raised atoms of silicon surface dimers, via the Si atom lone pair. We…

Materials Science · Physics 2017-09-13 Richard L. Smith , David R. Bowler

In this thesis the formation and properties of a polymer gel on and at a surface are investigated. The gel under investigation is defined as a three-dimensional network of "phantom" macromolecules that form permanent links with one another…

Disordered Systems and Neural Networks · Physics 2007-05-23 WL Vandoolaeghe

A protein residue network (PRN) is a network of interacting amino acids within a protein. We describe characteristics of a sparser, highly central and more volatile sub-network of a PRN called the short-cut network (SCN), as a protein folds…

Molecular Networks · Quantitative Biology 2015-08-13 Susan Khor

Computer simulations yield evidence of superfluid behavior of nanoscale size clusters of parahydrogen adsorbed on a graphite substrate at low temperature ($T\lesssim 0.25 \text{ K}$). Clusters with a number of molecules between 7 and 12…

Other Condensed Matter · Physics 2025-11-04 K. M. Kolevski , M. Boninsegni

We report a successful preparation of a purely honeycomb, graphene-like borophene, by using an Al(111) surface as the substrate and molecular beam epitaxy (MBE) growth in ultrahigh vacuum. Our scanning tunneling microscopy (STM) reveals…

Mesoscale and Nanoscale Physics · Physics 2017-12-27 Wenbin Li , Longjuan Kong , Caiyun Chen , Jian Gou , Shaoxiang Sheng , Weifeng Zhang , Hui Li , Lan Chen , Peng Cheng , Kehui Wu

We use scanning tunneling microscopy (STM) and Auger electron spectroscopy to study the behavior of adsorbed phosphine (PH$_{3}$) on Si(001), as a function of annealing temperature, paying particular attention to the formation of the Si-P…

Materials Science · Physics 2007-05-23 N. J. Curson , S. R. Schofield , M. Y. Simmons , L. Oberbeck , J. L. O'Brien , R. G. Clark

The nature of the five-fold surface of Al(70)Pd(21)Mn(9) has been investigated using scanning tunneling microscopy. From high resolution images of the terraces, a tiling of the surface has been constructed using pentagonal prototiles. This…

Materials Science · Physics 2009-11-07 J. Ledieu , R. McGrath , R. D. Diehl , T. A. Lograsso , D. W. Delaney , Z. Papadopolos , G. Kasner

The studies of electronic and magnetic properties of V-Pc molecule adsorbed onto Au(111) surface are based on ab-initio calculations in the framework of density functional theory. We compute adsorption energies, investigate interaction…

Materials Science · Physics 2021-03-30 Manel Mabrouk , Jacek A. Majewski

We report on total-energy electronic structure calculations in the density-functional theory performed for the ultra-thin atomic layers of Si on Ag(111) surfaces. We find several distinct stable silicene structures:…

Mesoscale and Nanoscale Physics · Physics 2015-05-05 Zhi-Xin Guo , Atsushi Oshiyama

The electronic structure of epitaxial single-layer MoS$_2$ on Au(111) is investigated by angle-resolved photoemission spectroscopy. Pristine and potassium-doped layers are studied in order to gain access to the conduction band. The…

The electronic and magnetic properties of Mn coordinated to 1,2,4,5-tetracyanobenzene (TCNB) in the Mn-TCNB 2D metal-ligand networks have been investigated by combining scanning tunneling microscopy and X-ray magnetic circular dichroism…

We use Small Angle Neutron Scattering (SANS), with an original analysis method, to obtain both the characteristic sizes and the inner composition of lysozyme-pectin complexes depending on the charge density. Lysozyme is a globular protein…

Soft Condensed Matter · Physics 2010-05-11 Isabelle Schmidt , Fabrice Cousin , Christophe Huchon , François Boué , Monique A. V. Axelos

Following our previous results, which provide evidence for the emergence of a chiral p-wave triplet-pairing component in superconducting Nb upon the adsorption of chiral molecules, we turned to investigate whether such an effect can take…

Micro-electro-mechanical system and nano-electro-mechanical system (MEMS and NEMS) transistors are considered promising for size-reducing and power-maximizing electronic devices. However, the tribopolymer which forms due to the mechanical…

Materials Science · Physics 2015-11-12 Yubo Qi , Jing Yang , Andrew M. Rappe

We study the atomic oxygen adsorption on Pb(111) surface by using density-functional theory within the generalized gradient approximation and a supercell approach. The atomic and energetic properties of purely on-surface and subsurface…

Materials Science · Physics 2009-11-13 Bo Sun , Ping Zhang , Zhigang Wang , Suqing Duan , Xian-Geng Zhao , Xuchun Ma , Qi-Kun Xue

In a bridge configuration, a single graphene nanoribbon (GNR) is positioned with a picometer precision over a trench in between two monoatomic steps on an Au(111) surface. This GNR molecular wire adopts a deformed conformation towards the…

Mesoscale and Nanoscale Physics · Physics 2022-10-07 Umamahesh Thupakula , Xavier Bouju , Jesús Castro-Esteban , Erik Dujardin , Diego Peña , Christian Joachim