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A quasi-one-dimensional alternating-spin Heisenberg model is used to describe the charge-transfer organic ferromagnet, which is studied by the Green's function method. The magnetic properties of the charge-transfer organic ferromagnet in different temperature regions are obtained. A formula for the critical temperature T c is obtained and is found to be related to the spin of donors, to...
A thin-film growth mechanism in laser-MBE is studied by Monte Carlo simulation. Particles impinge on the surface batch by batch rather than one by one. The different contributions of a positive surface step and a negative one to the RHEED intensity are considered, so is the influence of step size.
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