搜索结果: 1-15 共查到“理论物理学 crystal”相关记录30条 . 查询时间(0.093 秒)
Continuum approach to self-similarity and scaling in morphological relaxation of a crystal with a facet
Continuum approach self-similarity and scaling morphological relaxation crystal with a facet
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2015/10/16
The morphological relaxation of axisymmetric crystal surfaces with a single facet below the roughening transition temperature is studied analytically for diffusion-limited sDLd and attachment-detachme...
CONTINUUM DESCRIPTIONS OF CRYSTAL SURFACE EVOLUTION
CONTINUUM DESCRIPTIONS CRYSTAL SURFACE EVOLUTION
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2015/10/16
It is well known that liquid surfaces evolve in shape due to the effect of surface tension, which drives configurations towards lower energy. The breakup of an initially cylindrical fluid thread into ...
CONTINUUM RELAXATION OF INTERACTING STEPS ON CRYSTAL SURFACES IN 2+1 DIMENSIONS
crystal surface epitaxial growth morphological evolution Burton–Cabrera–Frank model Ehrlich–Schwoebel barrier entropic interactions elastic dipole interactions step chemical potential continuum limit surface mobility
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2015/10/16
We study the relaxation of crystal surfaces in 2+1 dimensions via the motion ofinteracting atomic steps. The goal is the rigorous derivation of the continuum limit. The starting point is a discrete sc...
Unified continuum approach to crystal surface morphological relaxation
Unified continuum approach crystal surface morphological relaxation
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2015/10/16
A continuum theory is used to predict scaling laws for the morphological relaxation of crystal surfaces in two independent space dimensions. Our goal is to unify previously disconnected experimental o...
Anisotropic diffusion in continuum relaxation of stepped crystal surfaces
Anisotropic diffusion continuum relaxation stepped crystal surfaces
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2015/10/16
We study the continuum limit in 2+1 dimensions of nanoscale anisotropic diffusion processes on crystal surfaces relaxing to become flat below roughening. Our main result is a continuum law for the sur...
Macroscopic view of crystal-step transparency
Macroscopic view crystal-step transparency
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2015/10/16
We study macroscopic aspects of crystal surface relaxation in 2+1 dimensions by accounting for nearequilibrium kinetics of transparent steps at the nanoscale. For slowly varying step geometries, we sh...
From atoms to steps:The microscopic origins of crystal evolution
Burton–Cabrera–Frank theory Solid-on-solid model Non-equilibrium statistical mechanics
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2015/10/16
The Burton–Cabrera–Frank (BCF) theory of crystal growth has been successful in describing a wide range of phenomena in surface physics. Typical crystal surfaces are slightly misoriented with respect t...
Role of chemical potential in relaxation of faceted crystal structure
chemical potential relaxation faceted crystal structure
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2015/10/16
Below the roughening transition, crystal surfaces have macroscopic plateaus, facets, whose evolution is driven by the microscale dynamics of steps. A long-standing puzzle was how to reconcile discrete...
What makes a crystal supersolid?
Solid not classic moment of inertia solids at low temperature
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2014/12/20
For nearly half a century the supersolid phase of matter has remained mysterious, not only eluding experimental observation, but also generating a great deal of controversy among theorists. The recent...
On the resonances and eigenvalues for a 1D half-crystal with localised impurity
resonances scattering periodic potential S-matrix
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2011/9/6
Abstract: We consider the Schr\"odinger operator $H$ on the half-line with a periodic potential $p$ plus a compactly supported potential $q$. For generic $p$, its essential spectrum has an infinite se...
Deformable two-dimensional photonic crystal slab for cavity optomechanics
two-dimensional photonic crystal slab cavity optomechanics Quantum Physics
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2011/8/1
Abstract: We have designed photonic crystal suspended membranes with optimized optical and mechanical properties for cavity optomechanics. Such resonators sustain vibration modes in the megahertz rang...
Analysis of the new Crystal Ball data on $K^-p\to\pi^0\Lambda$ reaction with beam momenta of $514\sim 750$ MeV/$c$
new Crystal Ball data on $K^-p\to\pi^0\Lambda$ reaction beam momenta $514\sim 750$ MeV/$c$
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2011/1/6
The Crystal Ball Collaboration has recently reported the differential cross sections for the reaction K−p ! 0 using an incident K− beam with momenta between 514 and 750 MeV/c. We make a ...
Calculations of the Spin-Lattice Coupling Coefficients
Fij and Zij for MgO:Co2+ Crystal
spin-lattice coupling coefficients electronic paramagnetic
resonance crystal- and ligand-field theory
Co2+ MgO crystal
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2007/8/15
2001Vol.36No.4pp.487-490DOI:
Calculations of the Spin-Lattice Coupling Coefficients
Fij and Zij for MgO:Co2+ Crystal
ZHENG Wen-Chen1,2 and WU Shao-Yi1,2
1 Department of ...
Effective-Field Theory on High Spin Systems with Biaxial Crystal Field
effective-field theory magnetic properties biaxial crystal field quantum effects
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2007/8/15
2006Vol.46No.6pp.1105-1108DOI:
Effective-Field Theory on High Spin Systems with Biaxial Crystal Field
JIANG Wei,1 GUO An-Bang,1 LI Xin,1 WANG Xi-Kun,1 and
BAI Bao-Dong2
...
Ionization of Atoms and the Thomas-Fermi Model
for the Electric Field in Crystal Planar Channels
ionization of atoms
Thomas-Fermi method for
the crystal electric field in channels
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2007/8/15
2002Vol.38No.3pp.361-364DOI:
Ionization of Atoms and the Thomas-Fermi Model
for the Electric Field in Crystal Planar Channels
LIU Ying-Tai,2 ZHANG Qi-Ren,1,2 and GAO Chun-Yuan2
...