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Related papers: Roughening of close-packed singular surfaces

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The effect of thermal annealing on wurtzite ZnO, terminated by two surfaces, (0 0 0 $\bar 1$) (which is oxygen-terminated) and (0 0 0 1) (which is Zn-terminated), is investigated via molecular dynamics simulation using reactive force field…

Materials Science · Physics 2017-03-07 Tjun Kit Min , Tiem Leong Yoon , Chuo Ann Ling , Shahrom Mahmud , Thong Leng Lim , Kim Guan Saw

The thermal expansion coefficient (TEC) of single-layer graphene is estimated with temperature-dependent Raman spectroscopy in the temperature range between 200 and 400 K. It is found to be strongly dependent on temperature but remains…

Mesoscale and Nanoscale Physics · Physics 2011-07-14 Duhee Yoon , Young-Woo Son , Heonsik Cheong

Strangeness production in heavy ion collisions is discussed in a broad energy range from SIS to RHIC. %We emphasize that in the In the whole energy range particle yields are showing high level of chemical equilibration which can be…

High Energy Physics - Phenomenology · Physics 2009-11-07 Krzysztof Redlich

We propose a general formula for the melting temperature of metals in terms of electronic mass, electronic number, and nearest-neighbor lattice distance. We derive it from the instability of the transverse phonon in the solid phase, using…

Other Condensed Matter · Physics 2015-05-14 Tamifusa Matsuura , Hidenori Suzuki , Ken'ichi Takano , Fumihiro Honda

The physics of sliding nanofriction at high temperature near the substrate melting point $\Tmelt$ is so far unexplored. We conducted simulations of hard tips sliding on a prototype non-melting surface, NaCl(100), revealing in this regime…

Materials Science · Physics 2007-05-23 T. Zykova-Timan , D. Ceresoli , E. Tosatti

We have successfully grown single crystalline NaFeAs with cobalt or phosphor doping. Bulk superconductivity occurs in NaFe$_{0.95}$Co$_{0.05}$As at 19 K while much higher transition temperature is observed in NaFeAs$_{0.8}$P$_{0.2}$, in…

Superconductivity · Physics 2010-02-03 T. -L. Xia , J. B. He , D. M. Wang , G. F. Chen

Co single atom junctions on copper surfaces are studied by scanning tunneling microscopy and ab-initio calculations. The Kondo temperature of single cobalt atoms on the Cu(111) surface has been measured at various tip-sample distances…

We report surface hardening or crust formation, unlike caking, during drying when a confined porous medium was heated from above using IR radiation. These crusts have higher strength than their closest counterparts such as sandcastles and…

Soft Condensed Matter · Physics 2020-09-04 Navneet Kumar , Jaywant H Arakeri , M S Bobji

The structure of a unique platelet zone with a three close-packed layer thickness, which occurred in a Mg-1at.%Zn-2at.%Gd alloy annealed at low temperatures (<~500K), has been determined based on scanning transmission electron microscopy…

Materials Science · Physics 2018-01-09 T. Koizumi , M. Egami , K. Yamashita , E. Abe

Assuming only statistical mechanics and general relativity, we calculate the maximal temperature of gas of particles placed in AdS space-time. If two particles with a given center of mass energy come close enough, according to classical…

General Relativity and Quantum Cosmology · Physics 2017-05-08 De-Chang Dai , Dejan Stojkovic

By combining scanning probe microscopy with Raman and x-ray photoelectron spectroscopies, we investigate the evolution of CVD-grown graphene/Ge(001) as a function of the deposition temperature in close proximity to the Ge melting point,…

When a finite volume of an etching solution comes in contact with a disordered solid, a complex dynamics of the solid-solution interface develops. Since only the weak parts are corroded, the solid surface hardens progressively. If the…

Statistical Mechanics · Physics 2009-10-31 A. Gabrielli , A. Baldassarri , B. Sapoval

Compared to purely atomic collisions, ultracold molecular collisions potentially support a much larger number of Fano-Feshbach resonances due to the enormous number of ro-vibrational states available. In fact, for alkali-metal dimers we…

Atomic Physics · Physics 2012-10-19 Michael Mayle , Goulven Quéméner , Brandon P. Ruzic , John L. Bohn

Surface melting temperature is well-known significantly lower than the bulk melting point. But we find that the interior melting temperature in ultrathin nanowires is lower than that of the surface melting . The thermal stability of helical…

Materials Science · Physics 2007-05-23 Jinlan Wang , Xiaoshuang Chen , Guanghou Wang , Baolin Wang , Wei Lu , Jijun Zhao

We find that clouds of optically-thin, pressure-confined gas are prone to fragmentation as they cool below $\sim10^6$ K. This fragmentation follows the lengthscale $\sim{c}_{\text{s}}\,t_{\text{cool}}$, ultimately reaching very small scales…

Astrophysics of Galaxies · Physics 2018-05-10 Michael McCourt , S. Peng Oh , Ryan M. O'Leary , Ann-Marie Madigan

We study the adsorption of chlorine on the Ag(111) surface with full potential gradient corrected density functional calculations. When considering a root3 x root3 R30degree pattern, we find that the fcc hollow is the most favorable…

Materials Science · Physics 2009-11-07 K. Doll , N. M. Harrison

Dark matter freeze-in at stronger coupling is operative when the Standard Model (SM) bath temperature never exceeds the dark matter mass. An attractive feature of this scenario is that it can be probed by direct detection experiments as…

High Energy Physics - Phenomenology · Physics 2024-05-20 Catarina Cosme , Francesco Costa , Oleg Lebedev

We study the phenomenon of super-roughening found on surfaces growing on disordered substrates. We consider a one-dimensional version of the problem for which the pure, ordered model exhibits a roughening phase transition. Extensive…

Statistical Mechanics · Physics 2009-11-10 Saul Ares , Angel Sanchez , Alan R. Bishop

A glass surface may still flow below the bulk glass transition temperature, where the underlying bulk is frozen. Assuming the existence at T=T* of a bulk thermodynamical glass transition, we show that the glass-vapor interface is generally…

Materials Science · Physics 2009-10-31 E. A. Jagla , E. Tosatti

We study the thermodynamic properties of the high-temperature modification of fullerites on the basis of the Girifalco intermolecular potential. In the present work, using Lindemann's melting criterion, we estimate a possible melting curve…

Materials Science · Physics 2021-10-12 Clóves Gonçalves Rodrigues