Charge frustration in a triangular triple quantum dot

• Published in: Physical review letters Vol. 110; no. 4; p. 046803
• Main Authors: Seo, M, Choi, H K, Lee, S-Y, Kim, N, Chung, Y, Sim, H-S, Umansky, V, Mahalu, D
• Format: Journal Article
• Language: English
• Published: United States 24.01.2013

We experimentally investigate the charge (isospin) frustration induced by a geometrical symmetry in a triangular triple quantum dot. We observe the ground-state charge configurations of sixfold degeneracy, the manifestation of the frustration. The frustration results in omnidirectional charge transp...