Possible observation of energy level quantization in an intrinsic Josephson junction
Superconductivity
2009-11-13 v1
Abstract
Energy level quantization (ELQ) is studied to clarify the macroscopic quantum dynamics of the d-wave Josephson junction (JJ). The influences of the nodal quasiparticles of d-wave superconductivity on the damping effect are numerically evaluated on the basis of a phenomenological model. The calculation, based on realistic parameters for a Bi2Sr2CaCu2O8+d (Bi2212) intrinsic JJ, shows that the observation of ELQ is possible when the sweep rate of the bias current exceeds 10 A/sec. High-sweep- rate measurements (121A/sec) performed on a Bi2212 intrinsic JJ result in the appearance of multiple peaks in the switching current distribution suggesting the realization of ELQ in the d-wave JJ.
Keywords
Cite
@article{arxiv.0802.4203,
title = {Possible observation of energy level quantization in an intrinsic Josephson junction},
author = {H. Kashiwaya and T. Matsumoto and S. Kashiwaya and H. Shibata and H. Eisaki and Y. Yoshida and S. Kawabata and Y. Tanaka},
journal= {arXiv preprint arXiv:0802.4203},
year = {2009}
}
Comments
5 pages, 3 figures