Ultrafast Lattice Dynamics of Phase-Change Materials Monitored by a Pump-Pump-Probe Technique

被引：0
|
作者：
Hase, Muneaki [1 ]
Fons, Paul [2 ]
Mitrofanov, Kirill [2 ]
Kolobov, Alexander V. [2 ]
Tominaga, Junji [2 ]
机构：
[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan
[2] Natl Inst Adv Ind Sci & Technol, Nanoelect Res Inst, Tsukuba, Ibaraki 3058562, Japan
来源：
ULTRAFAST PHENOMENA XIX | 2015年 / 162卷
关键词：
MEMORY;
D O I：
10.1007/978-3-319-13242-6_50
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We explore an ultrafast structural transformation in a Ge2Te2/Sb2Te3 superlattice, using pump-pump-probe spectroscopy. The coherent phonon spectra exhibit complex structural dynamics upon photo-excitation, being described as a mixing of two different Ge bonding configurations.
引用
收藏
页码：210 / 213
页数：4
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