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发信人: tobyhome2000 (luo), 信区: Physics 标题: 看看张振宇校友为郑州大学做的贡献发信站: BBS 珞珈山水站 (Thu Nov 1 13:42:26 2007) 郑州大学PRL第一作者单位 Initial stages of Ti growth on diamond (100) surfaces: From single adatom diff usion to quantum wire formation Author(s): Jia Y, Zhu WG, Wang EG, Huo YP, Zhang ZY Source: PHYSICAL REVIEW LETTERS 94 (8): Art. No. 086101 MAR 4 2005 Document Type: Article Language: English Cited References: 27 Times Cited: 2 Abstract: Using first-principles total energy calculations within density func tional theory, we investigate the energetics, kinetics, and transport properti es of Ti on clean and hydrogen-terminated diamond (100)-2 x 1 surfaces at incr easing Ti coverages. On a clean surface, an isolated Ti adatom prefers to adso rb on top of a C-C dimer row, and also diffuses faster along the dimer row dir ection. As the Ti coverage increases, the preferred adsorption site converts f rom an atop site to a site located between the dimer rows. Passivation of the surface at the monohydride coverage not only greatly enhances the Ti mobility, but also weakens the diffusion isotropy. Based on these energetic and kinetic characteristics, we propose a viable approach to fabricate ideal Ti quantum w ires on hydrogen-terminated diamond substrates. KeyWords Plus: TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; AB-INITIO; TITANIUM- ALLOYS; NUCLEATION; MECHANISM; POINTS; METALS; FILMS Addresses: Jia Y (reprint author), Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450052, Henan Peoples R China Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450052, Henan Peoples R China Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA Chinese Acad Sci, Int Ctr Quantum Struct, Beijing 100080, Peoples R China Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA Harvard Univ, Dept Phys, Cambridge, MA 02138 USA Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA Publisher: AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-38 44 USA Subject Category: Physics, Multidisciplinary IDS Number: 902VY ISSN: 0031-9007 ----------2005年要是没有王取泉老师的PRL,那一年武大就PRL光头了郑州大学SCIENCE第二完成单位 Tuning the quantum stability and superconductivity of ultrathin metal alloys Author(s): Ozer MM (Oezer, Mustafa M.), Jia Y (Jia, Yu), Zhang ZY (Zhang, Zhen yu), Thompson JR (Thompson, James R.), Weitering HH (Weitering, Hanno H.) Source: SCIENCE 316 (5831): 1594-1597 JUN 15 2007 Document Type: Article Language: English Cited References: 27 Times Cited: 0 Abstract: Quantum confinement of itinerant electrons in atomically smooth ultr athin lead films produces strong oscillations in the thickness-dependent film energy. By adding extra electrons via bismuth alloying, we showed that both th e structural stability and the superconducting properties of such films can be tuned. The phase boundary ( upper critical field) between the superconducting vortex state and the normal state indicates an anomalous suppression of super conducting order just below the critical temperature, T-c. This suppression va ries systematically with the film thickness and the bismuth content and can be parametrized in terms of a characteristic temperature, T-c* ( less than T-c), that is inversely proportional to the scattering mean free path. The results indicate that the isotropic nature of the superconductive pairing in bulk lead -bismuth alloys is altered in the quantum regime. KeyWords Plus: THIN-FILMS; TEMPERATURE; ENERGY Addresses: Weitering HH (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450052, Peoples R China ----------------------------------------------------------------------- Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA E-mail Addresses: hanno@utk.edu Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA Subject Category: Multidisciplinary Sciences IDS Number: 178SH ------------------------------------物院貌似近年没有SCIENCE,NATURE第二完成单位的，甚至第三完成单位的也没有 ISSN: 0036-8075 估计是学校或者是学院怠慢了我们张振宇校友，这位PRL副主编，在国内与物理所，郑州大学合作多多，但是毕业后却似乎从来没有回过武大，连个讲座都没有过我要是领导一定要对校友好一点， -- ※ 来源:·珞珈山水BBS站 http://bbs.whu.edu.cn·[FROM: 202.114.78.*]
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发信人: tobyhome2000 (luo), 信区: Physics
标  题: 看看张振宇校友为郑州大学做的贡献
发信站: BBS 珞珈山水站 (Thu Nov  1 13:42:26 2007)

郑州大学PRL第一作者单位
Initial stages of Ti growth on diamond (100) surfaces: From single adatom diff
usion to quantum wire formation
Author(s): Jia Y, Zhu WG, Wang EG, Huo YP, Zhang ZY
Source: PHYSICAL REVIEW LETTERS 94 (8): Art. No. 086101 MAR 4 2005
Document Type: Article
Language: English
Cited References: 27      Times Cited: 2
Abstract: Using first-principles total energy calculations within density func
tional theory, we investigate the energetics, kinetics, and transport properti
es of Ti on clean and hydrogen-terminated diamond (100)-2 x 1 surfaces at incr
easing Ti coverages. On a clean surface, an isolated Ti adatom prefers to adso
rb on top of a C-C dimer row, and also diffuses faster along the dimer row dir
ection. As the Ti coverage increases, the preferred adsorption site converts f
rom an atop site to a site located between the dimer rows. Passivation of the
surface at the monohydride coverage not only greatly enhances the Ti mobility,
but also weakens the diffusion isotropy. Based on these energetic and kinetic
characteristics, we propose a viable approach to fabricate ideal Ti quantum w
ires on hydrogen-terminated diamond substrates.
KeyWords Plus: TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; AB-INITIO; TITANIUM-
ALLOYS; NUCLEATION; MECHANISM; POINTS; METALS; FILMS
Addresses: Jia Y (reprint author), Zhengzhou Univ, Sch Phys & Engn, Zhengzhou
450052, Henan Peoples R China
Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450052, Henan Peoples R China
Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA
Chinese Acad Sci, Int Ctr Quantum Struct, Beijing 100080, Peoples R China
Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

Publisher: AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-38
44 USA
Subject Category: Physics, Multidisciplinary
IDS Number: 902VY

ISSN: 0031-9007
----------2005年要是没有王取泉老师的PRL,那一年武大就PRL光头了

郑州大学SCIENCE第二完成单位
Tuning the quantum stability and superconductivity of ultrathin metal alloys

Author(s): Ozer MM (Oezer, Mustafa M.), Jia Y (Jia, Yu), Zhang ZY (Zhang, Zhen
yu), Thompson JR (Thompson, James R.), Weitering HH (Weitering, Hanno H.)
Source: SCIENCE 316 (5831): 1594-1597 JUN 15 2007
Document Type: Article
Language: English
Cited References: 27      Times Cited: 0
Abstract: Quantum confinement of itinerant electrons in atomically smooth ultr
athin lead films produces strong oscillations in the thickness-dependent film
energy. By adding extra electrons via bismuth alloying, we showed that both th
e structural stability and the superconducting properties of such films can be
tuned. The phase boundary ( upper critical field) between the superconducting
vortex state and the normal state indicates an anomalous suppression of super
conducting order just below the critical temperature, T-c. This suppression va
ries systematically with the film thickness and the bismuth content and can be
parametrized in terms of a characteristic temperature, T-c* ( less than T-c),
that is inversely proportional to the scattering mean free path. The results
indicate that the isotropic nature of the superconductive pairing in bulk lead
-bismuth alloys is altered in the quantum regime.
KeyWords Plus: THIN-FILMS; TEMPERATURE; ENERGY
Addresses: Weitering HH (reprint author), Univ Tennessee, Dept Phys & Astron,
Knoxville, TN 37996 USA
Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450052, Peoples R China
-----------------------------------------------------------------------
Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

E-mail Addresses: hanno@utk.edu
Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON,
DC 20005 USA
Subject Category: Multidisciplinary Sciences
IDS Number: 178SH
------------------------------------物院貌似近年没有SCIENCE,NATURE第二完成单位
的，甚至第三完成单位的也没有

ISSN: 0036-8075

估计是学校或者是学院怠慢了我们张振宇校友，这位PRL副主编，在国内与物理所，郑州大
学合作多多，但是毕业后却似乎从来没有回过武大，连个讲座都没有过

我要是领导一定要对校友好一点，
--

※ 来源:·珞珈山水BBS站

http://bbs.whu.edu.cn·[FROM: 202.114.78.*]

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