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  • 07.80  (1)
  • 29.70.Gn  (1)
  • PACS: 78.65; 61.80J  (1)
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Material
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  • 1
    Electronic Resource
    Electronic Resource
    Electronic stopping power of Ti in C at Bohr velocities — experiment and theories (1991)
    Springer
    The European physical journal 340 (1991), S. 219-222 
    Details
    ISSN: 1434-601X
    Keywords: 29.70.Gn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Ranges of Ti ions, implanted into C with reduced velocities between 0.1 〈 ν/ν0 〈 5, ν0=e2/ħ, have been measured by Rutherford backscattering of a particles. By applying the concept of incremental range we have derived the electronic stopping power,S e, with a precision of about 1%; the estimated accuracy is 2%. All theories deviate from the experimental results considerably with respect to both magnitude and velocity dependence of Se.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303835
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Generation of optical contrast in insulating materials by irradiation with focused ion beams (2000)
    Springer
    Applied physics 71 (2000), S. 565-569 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 78.65; 61.80J
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The optical properties of crystalline insulating materials can markedly be modified by irradiation with energetic ions. The exposed areas of such materials absorb and reflect light more strongly than non-irradiated ones. In this way, optical contrast is created. With modern equipment, ion beams of sufficient intensity can be focused to submicron dimensions. Thus, both analog and digital information can be recorded with pixel densities of Gbit/cm2 to Tbit/cm2. In particular, crystalline films of group-IV elements of the periodic system, such as Si, SiC and CD (diamond), are best suited for this novel ionographic process. The physical foundations of this technology and the resulting properties of the recorded data will be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390000625
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Current-voltage characteristics of a gas field ion source (1988)
    Springer
    Applied physics 46 (1988), S. 313-323 
    Details
    ISSN: 1432-0649
    Keywords: 79.70 ; 07.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Current-voltage characteristics of a gas field ion source (GFIS) have been measured for hydrogen and all rare gases. The parameter set included tip temperature, tip radius and gas temperature and pressure. This investigation has been made to get a complete overview of the field ion currents (FIC) and to estimate the maximum currents in a GFIS, which have been found to a few 100 nA. This estimate allows also a feasibility study of a GFIS, modified by a supertip, a small protuberance on the emitter surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00686454
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    Paper (German National Licenses)
    Fulltext
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