Thermal memory: a storage of phononic information

Phys Rev Lett. 2008 Dec 31;101(26):267203. doi: 10.1103/PhysRevLett.101.267203.


Memory is an indispensible element for a computer in addition to logic gates. In this Letter we report a model of thermal memory. We demonstrate via numerical simulation that thermal (phononic) information stored in the memory can be retained for a long time without being lost and more importantly can be read out without being destroyed. The possibility of experimental realization is also discussed.