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American Institute of Physics, Applied Physics Letters, 22(104), p. 223113, 2014

DOI: 10.1063/1.4881055

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Tuning the local temperature during feedback controlled electromigration in gold nanowires

Journal article published in 2014 by An Xiang, Shimin Hou, Jianhui Liao
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Feedback controlled electromigration (FCE) in metallic nanowires has been widely used for various purposes. However, the control of the local temperature during FCE remains a challenge. Here, we report that the environment temperature can be used as a knob to tune the local temperature during FCE in gold nanowires. FCE was performed in gold nanowires at various environment temperatures ranging from 4.2 K to 300 K. We find that the dissipated power normalized by the cross section area of the nano constriction is linearly proportional to the environment temperature. Interestingly, the estimated local maximum temperature parabolically depends on the environment temperature. A minimum in the local temperature can be reached if an appropriate environment temperature is chosen. Our findings are well supported by the finite element simulation. Moreover, the data indicates the coupling between FCE triggering current density and local temperature.