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  • Electronic Resource  (3)
  • 1985-1989  (3)
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  • Electronic Resource  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Lifetime and carrier-concentration profile of B+-implanted p-type HgCdTe (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 3916-3922 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The lifetime and carrier-concentration profile of Hg1−xCdxTe photodiodes (x=0.2–0.3) formed by implantation of B+ ions (100 keV, 1013–1014 cm−2) into a p-type substrate was investigated. Using graded C-V measurements, concentration of carriers around the n+p junction was obtained. It was found that the junction is located at a depth of 0.7–1.5 μm, depending on the bulk hole concentration. The technique enables profiling of the same sample after annealing. The annealing process was shown to make the electron concentration shallower and thus to bring the junction closer to the surface. Various techniques were used to measure excess carrier lifetimes. All indicate that the extent of degradation of the excess electron lifetime in the p region is very limited. For all tested samples, an etch of 2 μm was enough to recover the bulk lifetime. These results contradict the general assumption of deep damages in the p-type substrate. Thus, the contribution of the n+ side to the saturation current and to the R0A product cannot be neglected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337514
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Geodetic contraction games on graphs (1989)
    Springer
    International journal of game theory 18 (1989), S. 327-338 
    Details
    ISSN: 1432-1270
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract LetG = (V, E) be a finite graph. The setL of labeled vertices is initially empty. Two players A and B move alternately (A first), by choosing an unlabled vertexu ε ∈V\L; thenu itself and all vertices on shortest paths betweenu and any vertex ofL are adjoined toL. WhenL =V, the game is over. Innormal play, the first player unable to move loses and his opponent wins. The outcome is reversed formisère play. We resolve the game by determining its winning strategies for the following cases: trees in normal play; cycles in normal and misère play; and complete graphsK m with rays all of lengthn, in normal play.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01254296
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Partizan octal games: Partizan subtraction games (1987)
    Springer
    International journal of game theory 16 (1987), S. 145-154 
    Details
    ISSN: 1432-1270
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract A subtraction gameS=(s 1, ...,s k)is a two-player game played with a pile of tokens where each player at his turn removes a number ofm of tokens providedmεS. The player first unable to move loses, his opponent wins. This impartial game becomes partizan if, instead of one setS, two finite setsS L andS R are given: Left removes tokens as specified byS L, right according toS R. We say thatS L dominatesS R if for all sufficiently large piles Left wins both as first and as second player. We exhibit a curious property of dominance and provide two subclasses of games in which a dominance relation prevails. We further prove that all partizan subtraction games areperiodic, and investigatepure periodicity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01780638
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    Paper (German National Licenses)
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