晶界粗化转变
Grain Boundary Roughening Transitions
摘要：
我们考虑了由位错阵列组成的小角度晶界的粗糙化，并发现了两个转变，对应于沿着和垂直于晶界的位错的波动。后者有助于大规模的晶体取向的波动，而前者没有。这些转变的转变温度非常不同，后者发生在更高的温度下。这些温度的数量级估计是一致的，最近的实验结果从弹性和X射线测量固体$^4$他。
英文摘要：
We consider the roughening of small angle grain boundaries consisting of arrays of dislocations and found two transitions, corresponding to fluctuations of the dislocations along and perpendicular to the boundaries. The latter contributes to a large scale fluctuation of the orientation of the crystal but the former does not. The transition temperatures of these transitions are very different, with the latter occuring at a much higher temperature. Order of magnitude estimates of these temperatures are consistent with recent experimental results from elasticity and X-ray measurements in solid $^4$He.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
