Výsledky vyhledávání - "Zeng-Ju Tian"

Surface disordering, roughening and premelting of Ag(110)

Autor: Zeng-Ju Tian, J.E. Black, Talat S. Rahman

Publikováno v: Surface Science. 374:9-16

We have examined the structure and the dynamics of Ag(110) from 300 to 1100 K using reliable, many-body interaction potentials and molecular dynamics simulations. It is seen that the surface in-plane vibrations are larger and more anharmonic than the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::edcd285c4cc277d581f01ba2bf338f7e
https://doi.org/10.1016/s0039-6028(96)00909-0

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A structural study of surface alloys

Autor: J.E. Black, W. Liu, Keith Griffiths, T.D. Pope, Ian V. Mitchell, K.A.R. Mitchell, Peter R. Norton, Zeng-Ju Tian, H.T. Tang, Maarten Vos, Y.S. Li

Publikováno v: Surface Science. 337:79-91

The structures formed by one-half and one monolayer (ML) of Pd evaporated onto Cu(100) at 300 K were studied by low energy electron diffraction (LEED), medium energy ion scattering (MEIS), thermal desorption spectroscopy (TDS), and embedded atom meth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f5ecff1cbe40cdb2f6d5b4a6afea467
https://doi.org/10.1016/0039-6028(95)00530-7

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Phonon spectra and mean square displacements on Cu(11n) vicinal surfaces

Autor: Zeng-Ju Tian, J.E. Black

Publikováno v: Surface Science. 303:395-408

Surface phonon spectra on Cu(11n) vicinal surfaces, with odd number n = 1 to 19, are studied by using the continued fraction method and embedded atom potentials. Vibration frequencies for atoms at step edges are found to be softer along the surface n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ffbeb07e6dc50d36c17193973f0177c
https://doi.org/10.1016/0039-6028(94)90787-0

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Structure and dynamics of an Ag overlayer on Cu(100): a study using the embedded atom method

Autor: Zeng-Ju Tian, J.E. Black, Talat S. Rahman

Publikováno v: Surface Science. 291:215-225

We present the results obtained from molecular dynamics simulations of an overlayer of Ag on Cu(100) using potentials from the embedded atom method. As in the case of an Ag overlayer on Ni(100), the overlayer slides back and forth on the substrate al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11bde259a7f5026961598a0d4b90de40
https://doi.org/10.1016/0039-6028(93)91493-9

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Complicated exchange-mediated diffusion mechanisms in and on a Cu(100) substrate at high temperatures

Autor: Zeng-Ju Tian, J.E. Black

Publikováno v: Physical review letters. 71(15)

We present results obtained from a molecular dynamics study of the behavior of isolated copper atoms placed on a copper substrate. The atomic interactions are modeled by the embedded atom method. At 900 K we find that diffusion frequently proceeds by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af9d9a670d0486d7d8abec5a56aa9069
https://pubmed.ncbi.nlm.nih.gov/10054682

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Dynamics of a Metal Overlayer on Metallic Substrates – High Temperature Effects

Autor: J.E. Black, Talat S. Rahman, Zeng Ju Tian

Publikováno v: MRS Proceedings. 291

We have explored the structure and the dynamics of a bimetallic system consisting of a hexagonal (almost) overlayer of Agon a square lattice (Ni(100) and Cu(100)), as a function of the surface temperature. In each case the structure is "nearly" incom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::262508e918bd07b2e294a2a69af9abd5
https://doi.org/10.1557/proc-291-205

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