What does intrinsic tunnelling spectroscopy really examine?
| dc.creator | Zavaritsky, V. N. | |
| dc.date | 2004-10-04 | |
| dc.date.accessioned | 2026-07-07T03:01:14Z | |
| dc.date.available | 2026-07-07T03:01:14Z | |
| dc.description | The out-of-plane current-voltage (I-V) characteristics of Bi2212 are studied in experimental environments of different heat transfer efficiency, allowing practical separation of intrinsic and extrinsic phenomena. {\it Intrinsic} (heating-free) response is Ohmic in the normal state of Bi2212, while its resistance, R=V/I, is found to be a good practical measure of the mean temperature of the sample in the overheated case. A self-heating model proposed for the latter case provides a qualitative and quantitative description of key findings of intrinsic tunnelling spectroscopy including (pseudo)gaps, quasiparticle and normal state resistances. The model also naturally explains the `superconducting' gap closure well below $T_c$ of the material as well as its survival at a magnetic field significantly exceeding $H_{c2}$. The generic shape of the individual branches of the brush-like part of I-V established under conditions of negligible overheating suggests a phase-slip origin of the so-called `intrinsic Josephson effect' (IJE). | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0410069 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0410069 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24993 | |
| dc.subject | Superconductivity | |
| dc.subject | Materials Science | |
| dc.title | What does intrinsic tunnelling spectroscopy really examine? | |
| dc.type | text |