Author/Authors :
Yu.V Dubrovskii، نويسنده , , R Hill، نويسنده , , V.A. Volkov، نويسنده , , P.C Main، نويسنده , , L Eaves، نويسنده , , V.G. Popov، نويسنده , , E.E Vdovin، نويسنده , , D.Yu Ivanov، نويسنده , , D.K Maude، نويسنده , , J.-C Portal، نويسنده , , M Henini، نويسنده , , G Hill، نويسنده ,
Abstract :
We have investigated equilibrium tunnelling between disordered two-dimensional electron systems at temperatures below View the MathML source over a wide range of magnetic field, B, applied perpendicular to the electron layers. In zero field, we observe a narrow conductance peak of about View the MathML source width at zero bias. As B is increased, this is transformed into a narrow linear gap in the tunnel spectrum. The existence of the linear gap is discussed in terms of many-electron interaction effects.
