期刊
PHYSICAL REVIEW B
卷 84, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.84.184107
关键词
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资金
- US Air Force Office of Scientific Research (AFOSR) Multidisciplinary University Research Initiative [FA9550-08-1-0407]
- AFOSR [FA9550-10-1-0082]
- Carnegie/DOE Alliance Center [DE-FC52-08NA28554]
We use high pressure to reveal the dependence of interfacial heat transport on the stiffness of interfacial bonds. The combination of time-domain thermoreflectance and SiC anvil techniques is used to measure the pressure-dependent thermal conductance G(P) of clean and modified Al/SiC interfaces at pressures as high as P = 12 GPa. We create low-stiffness, van der Waals-bonded interfaces by transferring a monolayer of graphene onto the SiC surface before depositing the Al film. For such weak interfaces, G(P) initially increases approximately linearly with P. At high pressures, P > 8 GPa, the thermal conductance of these weak interfaces approaches the high values characteristic of strongly bonded, clean interfaces.
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