A FUNCTIONAL CELL FOR QUANTUM-DOT CELLULAR-AUTOMATA

We present experimental demonstration of a basic cell of Quantum-dot C ellular Automata, a transistorless computation paradigm which addresse s the issues of device density and interconnection. The devices presen ted consist of four and six-dot quantum-dot cellular systems where the metal dots are connected by capacitors and tunnel junctions. The oper ation of a basic cell is confirmed by the externally controlled polari zation change of the cell. The cell exhibits a bistable response and v oltage gain. We present an experimental technique which cancels the pa rasitic cross-talk capacitors in the system. (C) 1998 Elsevier Science Ltd. All rights reserved.