https://doi.org/10.1140/epjp/i2019-12611-5
Regular Article
Lifetime of carbyne-based nanodevices: size and “even-odd” effects
1
G.V. Kurdyumov Institute for Metal Physics, 36, Academician Vernadsky Blvd., 03142, Kyiv, Ukraine
2
Taras Shevchenko Kyiv National University, 60, Volodymyrska Str., 01033, Kyiv, Ukraine
3
Institute of Physics, Albert-Ludwig-University of Freiburg, Hermann-Herder-Str. 3, 79104, Freiburg, Germany
* e-mail: serkotr@gmail.com
Received:
19
April
2018
Accepted:
5
March
2019
Published online:
30
April
2019
The existence of both size and “even-odd” effects for the lifetime of carbyne-based nanodevices consisting of two graphene sheets connected by a carbyne chain is predicted. Based on the results of DFT-calculations, it is ascertained that appearance of a region where equilibrium positions of atoms are impossible is a key feature of the failure of carbyne-based nanodevices under mechanical loading. This region appears before the chain is broken. It is the reason for the effect of mechanical load on the “even-odd” effect for lifetime. For a wide range of temperatures and mechanical loads, a lower estimate of the lifetimes of carbyne-based nanodevices is given, which supports the possibility of their practical use.
© Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2019
