SPATIAL EVOLUTION OF THE BACKGROUND CONDUCTANCE IN THE TUNNELING SPECTRA IN Bi2Sr2-xLaxCuO6+δ
2007 ◽
Vol 21
(18n19)
◽
pp. 3190-3193
Keyword(s):
The spatial evolution of the background conductance in the tunneling spectra was investigated with low-temperature scanning tunneling spectroscopy on a slightly overdoped Bi 2 Sr 1.74 La 0.26 CuO 6+δ single crystal at 4.2 K. The asymmetry in the background conductance between positive and negative biases strongly correlates with the local energy gap, which shows the inhomogeneous spatial variation: the tunneling spectra become more asymmetric in the regions where the spectra exhibit larger gap value.
2006 ◽
Vol 86
(6-8)
◽
pp. 781-787
◽
2003 ◽
1995 ◽
Vol 34
(Part 1, No. 1)
◽
pp. 89-92
◽
1999 ◽
Vol 45
(5)
◽
pp. 579-584
◽
2006 ◽