Studying electrons on curved surfaces by trapping and manipulating multielectron bubbles in liquid helium

Vadakkumbatt, Vaisakh and Joseph, Emil and Pal, Anustuv and Ghosh, Ambarish (2014) Studying electrons on curved surfaces by trapping and manipulating multielectron bubbles in liquid helium. In: NATURE COMMUNICATIONS, 5 .

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Abstract

Investigations of two-dimensional electron systems (2DES) have been achieved with two model experimental systems, covering two distinct, non-overlapping regimes of the 2DES phase diagram, namely the quantum liquid phase in semiconducting heterostructures and the classical phases observed in electrons confined above the surface of liquid helium. Multielectron bubbles in liquid helium offer an exciting possibility to bridge this gap in the phase diagram, as well as to study the properties of electrons on curved flexible surfaces. However, this approach has been limited because all experimental studies have so far been transient in nature. Here we demonstrate that it is possible to trap and manipulate multielectron bubbles in a conventional Paul trap for several hundreds of milliseconds, enabling reliable measurements of their physical properties and thereby gaining valuable insight to various aspects of curved 2DES that were previously unexplored.

Item Type:	Journal Article
Publication:	NATURE COMMUNICATIONS
Publisher:	NATURE PUBLISHING GROUP
Additional Information:	Copy right for this article belongs to the NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering Division of Physical & Mathematical Sciences > Physics
Date Deposited:	25 Sep 2014 06:01
Last Modified:	25 Sep 2014 06:01
URI:	http://eprints.iisc.ac.in/id/eprint/49944

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