DISCONTINUOUS UNBINDING TRANSITIONS OF FLEXIBLE MEMBRANES
DISCONTINUOUS UNBINDING TRANSITIONS OF FLEXIBLE MEMBRANES
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DOI：
10.1051/jp2:1994230
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发表时间：
1994-10-01
期刊：
影响因子：
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通讯作者：
LIPOWSKY, R
中科院分区：
文献类型：
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作者：
LIPOWSKY, R
膜的粘附力通常由相互作用势决定，该相互作用势在中间膜分离处表现出势垒。 在低温下，膜被屏障捕获。 随着温度的升高，热激发的形状波动会降低这种屏障的强度，直到膜经历非结合转变。 这种转变是不连续的和连续的强和弱的势垒，分别。 因此，膜可以穿过弱屏障，但仍被强屏障捕获。 一个简单的标准中的相互作用势的参数推导出的，其中一个可以区分这两个政权。
The adhesion of membranes is often governed by an interaction potential which exhibits a potential barrier at intermediate membrane separations. At low temperatures, the membranes are trapped by the barrier. As the temperature is increased, thermally-excited shape fluctuations act to reduce the strength of this barrier until the membranes undergo an unbinding transition. This transition is discontinuous and continuous for strong and for weak potential barriers, respectively. Thus, the membranes can tunnel through weak barriers but remain trapped by strong ones. A simple criterion in terms of the parameters of the interaction potential is derived by which one can distinguish these two regimes.