Physics – Condensed Matter – Superconductivity
Scientific paper
2001-08-05
Supercond. Sci. Technol. 15 (2002) 1330-1334
Physics
Condensed Matter
Superconductivity
10 pages revtex plus four figures; ICMAT 2001 Conference Symposium P: P10-06
Scientific paper
10.1088/0953-2048/15/9/310
The cuprates seem to exhibit statistics, dimensionality and phase transitions in novel ways. The nature of excitations [i.e. quasiparticle or collective], spin-charge separation, stripes [static and dynamics], inhomogeneities, psuedogap, effect of impurity dopings [e.g. Zn, Ni] and any other phenomenon in these materials must be consistently understood. In this note we further discuss our original suggestion of using Single Electron Tunneling Transistor [SET] based experiments to understand the role of charge dynamics in these systems. Assuming that SET operates as an efficient charge detection system we can expect to understand the underlying physics of charge transport and charge fluctuations in these materials for a range of doping. Experiments such as these can be classed in a general sense as mesoscopic and nano characterization of cuprates and related materials. In principle such experiments can show if electron is fractionalized in cuprates as indicated by ARPES data. In contrast to flux trapping experiments SET based experiments are more direct in providing evidence about spin-charge separation. In addition a detailed picture of nano charge dynamics in cuprates may be obtained.
Alam Sher
Oyanagi H.
Rahman Obaidur Md.
Yanagisawa Takashi
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