Heat capacity of fluid monolayers of 4He.
Heat capacity of fluid monolayers of 4He.
复制标题
4He 流体单分子层的热容。
DOI：
10.1103/physrevlett.67.3535
复制
发表时间：
1991
影响因子：
8.6
通讯作者：
Busch
中科院分区：
文献类型：
--
作者：
Greywall;Busch
吸附在石墨上的He的热容量已经在覆盖范围的细网格上精确测量，温度延伸到100 mK，覆盖范围高达五个原子层。数据表明，二维液体是自约束在每一个的前三层的面密度约为0.04原子/\AA{} $^{2}$。也有证据表明，这种液体经历了一个Kosterlitz无相变。
The heat capacity of $^{4}\mathrm{He}$ adsorbed on graphite has been precisely measured over a fine grid of coverages for temperatures extending down to 100 mK and for coverages up to five atomic layers. The data indicate that the two-dimensional liquid is self-bound in each of the first three layers with an areal density of about 0.04 atom/\AA{} $^{2}$. There is also evidence suggesting that this liquid undergoes a Kosterlitz-Thouless transition.