%0 Journal Article %1 noauthororeditor %A Morgenstern, M. %A Haude, D. %A Klijn, J. %A Meyer, Chr. %A Sacharow, L. %A Heinze, S. %A Blügel, S. %A Wiesendanger, R. %D 2003 %J Physica E: Low-dimensional Systems and Nanostructures %K morgenstern %N 1 %P 121-128 %T Comparing the local density of states of three- and two-dimensional electron systems by low-temperature scanning tunneling spectroscopy %U http://www.sciencedirect.com/science/article/pii/S1386947702005854 %V 16 %X Scanning tunneling spectroscopy performed at T=6 K is used to investigate the local density of states (LDOS) of electron systems in the bulk conduction band of InAs. In particular, the 3DES of the n-doped material and an adsorbate-induced 2DES located at the surface are investigated at B=0 and 6 T. It is found that the 3DES at B=0 T can be described by Bloch states weakly interacting with the potential disorder. The 2DES at B=0 T exhibits much stronger ŁDOS\ corrugations revealing the tendency of weak localization. In a magnetic field both systems show drift states, which are expected in 2D, but are surprising in 3D, where they point to a new electron phase consisting of droplets of quasi 2D-systems.

@article{noauthororeditor, abstract = {Scanning tunneling spectroscopy performed at T=6 K is used to investigate the local density of states (LDOS) of electron systems in the bulk conduction band of InAs. In particular, the 3DES of the n-doped material and an adsorbate-induced 2DES located at the surface are investigated at B=0 and 6 T. It is found that the 3DES at B=0 T can be described by Bloch states weakly interacting with the potential disorder. The 2DES at B=0 T exhibits much stronger \{LDOS\} corrugations revealing the tendency of weak localization. In a magnetic field both systems show drift states, which are expected in 2D, but are surprising in 3D, where they point to a new electron phase consisting of droplets of quasi 2D-systems.}, added-at = {2015-03-17T01:07:17.000+0100}, author = {Morgenstern, M. and Haude, D. and Klijn, J. and Meyer, Chr. and Sacharow, L. and Heinze, S. and Blügel, S. and Wiesendanger, R.}, biburl = {https://www.bibsonomy.org/bibtex/290f849424345243d1a802d50b7398cfe/institut2b}, interhash = {68a0a4b33fe4458b3a26353f183f1d18}, intrahash = {90f849424345243d1a802d50b7398cfe}, journal = {Physica E: Low-dimensional Systems and Nanostructures}, keywords = {morgenstern}, number = 1, pages = {121-128}, timestamp = {2015-03-17T04:10:08.000+0100}, title = {Comparing the local density of states of three- and two-dimensional electron systems by low-temperature scanning tunneling spectroscopy}, url = {http://www.sciencedirect.com/science/article/pii/S1386947702005854}, volume = 16, year = 2003 }