Issue 4, 2012

Fabrication of the best conductor from single-crystal copper and the contribution of grain boundaries to the Debye temperature

Abstract

The scientific community has attempted to fabricate superconductors that work at room temperature; however, this goal has not yet been achieved. Considering miniaturization of devices and the requirement of low-power consumption in electronics, it is important to enhance room-temperature conductivity. We prepared the best conductor using crystallization and enhanced its conduction using high-pressure annealing. Single-crystal copper showed a conductivity enhancement of 12–14% after treatment under high pressure and temperature compared with that of oxygen-free copper, which has the highest conductivity for a metal. The contribution of grain boundaries to the Debye temperature was calculated and the phonon excitation was maximized at a lower temperature in grain-free copper. This study aimed to develop a new conductor, in which phonon–electron scattering is reduced at high temperatures. Single-crystal copper could be used for large-scale production of Bitter magnets to generate a high magnetic field and for applications of crystal engineering.

Graphical abstract: Fabrication of the best conductor from single-crystal copper and the contribution of grain boundaries to the Debye temperature

Article information

Article type
Paper
Submitted
09 Aug 2011
Accepted
04 Nov 2011
First published
12 Dec 2011

CrystEngComm, 2012,14, 1463-1467

Fabrication of the best conductor from single-crystal copper and the contribution of grain boundaries to the Debye temperature

M. Ajmal, S. Lee, Y. C. Cho, S. J. Kim, S. E. Park, C. R. Cho and S. Jeong, CrystEngComm, 2012, 14, 1463 DOI: 10.1039/C1CE06026K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements