Calorimetry at surfaces using high-resolution core-level photoemission

被引：10
|
作者：
Santucci, SC
Goldoni, A
Larciprete, R
Lizzit, S
Bertolo, M
Baraldi, A
Masciovecchio, C
机构：
[1] Sincrotrone Trieste SCpA, I-34012 Trieste, Italy
[2] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy
[3] CNR, IMIP, I-85050 Tito Scala, PZ, Italy
[4] Univ Trieste, Dipartimento Fis, I-34100 Trieste, Italy
[5] INFM, Lab TASC, I-34012 Trieste, Italy
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.93.106105
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have developed a method to measure simultaneously the internal energy of bulk and the first layer atoms of a crystal. The internal energy of bulk and the surface atoms of lithium (110) have been evaluated from 22 K up to above the melting transition, applying the Debye model to the thermal broadening of the respective 1s photoemission lines. Our measurements clearly reveal two phase changes: the known liquid to solid transition and the surface melting, occurring 50 K below the bulk melting point.
引用
收藏
页码：106105 / 1
页数：4
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