Many-particle surface diffusion coefficients near first-order phase transitions at low temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00194659" target="_blank" >RIV/68407700:21110/12:00194659 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevE.86.011601" target="_blank" >http://dx.doi.org/10.1103/PhysRevE.86.011601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevE.86.011601" target="_blank" >10.1103/PhysRevE.86.011601</a>

Result language

angličtina

Original language name

Many-particle surface diffusion coefficients near first-order phase transitions at low temperatures

Original language description

We analyze the chemical and jump surface diffusion coefficients, D-c and D-J, near a first-order phase transition at which two phases coexist and the surface coverage,., jumps between single-phase values theta*(-) and theta*(+). Contrary to other studies, we consider temperatures that are sufficiently subcritical. Using the local equilibrium approximation, we obtain approximate analytical formulas for the dependences of D-c and D-J on the coverage and system size, N, near such a transition. In the two-phase regime, when. ranges between theta*(-) and theta*(+), the diffusion coefficients behave as the sums of two hyperbolas, D-c ~ A(-)/N | theta - theta*(-) | + A(+)/ N | theta - theta*(+) | and D-J ~ A(-) | theta - theta*(+) |/theta + A(+) | theta - theta*(-) |/theta. This behavior rapidly changes as the system goes from the two-phase regime to either of the single-phase regimes (when theta goes below theta*(-) or above theta*(+)). The crossover behavior of D-c(theta) and D-J (theta) be

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review E

ISSN

1539-3755

e-ISSN

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Volume of the periodical

86

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

000306331400003

EID of the result in the Scopus database

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