Long-range effect of ion irradiation on Cu surface segregation in a CuNi system

Li Zhang; Guangze Tang; Xinxin Ma; Francis Michael Russell; Xingzhong Cao; Baoyi Wang; Peng Zhang

doi:10.1016/j.physleta.2011.03.054

Long-range effect of ion irradiation on Cu surface segregation in a CuNi system

Li Zhang, Guangze Tang, Xinxin Ma, Francis Michael Russell, Xingzhong Cao, Baoyi Wang, Peng Zhang

School of Mathematical & Computer Sciences

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Ni films were deposited on one side of single crystal Cu substrate discs of 1.0 and 1.5 mm thickness. These discs were irradiated on the Cu side with argon ions. Evidence for enhanced Cu segregation at the Ni surface was found for both thicknesses. This effect decreased with increasing distance between the diffusion zone and the irradiated surface. Slow positron annihilation results indicate lower vacancy-like defects at the subsurface layer after Ar irradiation on the other surface of Cu disks. Such long-range effect is here interpreted on the basis of a particular type of mobile discrete breather called quodon. © 2011 Elsevier B.V.

Original language	English
Pages (from-to)	1976-1979
Number of pages	4
Journal	Physics Letters A
Volume	375
Issue number	19
DOIs	https://doi.org/10.1016/j.physleta.2011.03.054
Publication status	Published - 9 May 2011

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10.1016/j.physleta.2011.03.054

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title = "Long-range effect of ion irradiation on Cu surface segregation in a CuNi system",

abstract = "Ni films were deposited on one side of single crystal Cu substrate discs of 1.0 and 1.5 mm thickness. These discs were irradiated on the Cu side with argon ions. Evidence for enhanced Cu segregation at the Ni surface was found for both thicknesses. This effect decreased with increasing distance between the diffusion zone and the irradiated surface. Slow positron annihilation results indicate lower vacancy-like defects at the subsurface layer after Ar irradiation on the other surface of Cu disks. Such long-range effect is here interpreted on the basis of a particular type of mobile discrete breather called quodon. {\textcopyright} 2011 Elsevier B.V.",

author = "Li Zhang and Guangze Tang and Xinxin Ma and Russell, {Francis Michael} and Xingzhong Cao and Baoyi Wang and Peng Zhang",

year = "2011",

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language = "English",

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T1 - Long-range effect of ion irradiation on Cu surface segregation in a CuNi system

AU - Zhang, Li

AU - Tang, Guangze

AU - Ma, Xinxin

AU - Russell, Francis Michael

AU - Cao, Xingzhong

AU - Wang, Baoyi

AU - Zhang, Peng

PY - 2011/5/9

Y1 - 2011/5/9

N2 - Ni films were deposited on one side of single crystal Cu substrate discs of 1.0 and 1.5 mm thickness. These discs were irradiated on the Cu side with argon ions. Evidence for enhanced Cu segregation at the Ni surface was found for both thicknesses. This effect decreased with increasing distance between the diffusion zone and the irradiated surface. Slow positron annihilation results indicate lower vacancy-like defects at the subsurface layer after Ar irradiation on the other surface of Cu disks. Such long-range effect is here interpreted on the basis of a particular type of mobile discrete breather called quodon. © 2011 Elsevier B.V.

AB - Ni films were deposited on one side of single crystal Cu substrate discs of 1.0 and 1.5 mm thickness. These discs were irradiated on the Cu side with argon ions. Evidence for enhanced Cu segregation at the Ni surface was found for both thicknesses. This effect decreased with increasing distance between the diffusion zone and the irradiated surface. Slow positron annihilation results indicate lower vacancy-like defects at the subsurface layer after Ar irradiation on the other surface of Cu disks. Such long-range effect is here interpreted on the basis of a particular type of mobile discrete breather called quodon. © 2011 Elsevier B.V.

U2 - 10.1016/j.physleta.2011.03.054

DO - 10.1016/j.physleta.2011.03.054

M3 - Article

SN - 0375-9601

VL - 375

SP - 1976

EP - 1979

JO - Physics Letters A

JF - Physics Letters A

IS - 19

ER -

Long-range effect of ion irradiation on Cu surface segregation in a CuNi system

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