Transport properties of two laterally coupled vertical quantum dots in series with tunable interdot coupling

Applied Physics Letters

Volumn 97, Issue 6, 2010, Pages

  Hatano, T ^a,e   Amaha, S ^a   Kubo, T ^a   Teraoka, S ^a   Tokura, Y ^a,b   Gupta, J A ^c   Austing, D G ^c   Tarucha, S ^a,d  

^a Japan Science and Technology Agency   (Japan)

^b Kashino Diverse Brain Research Laboratory of NTT Communication Science Laboratories   (Japan)

^c NATIONAL RESEARCH COUNCIL CANADA   (Canada)

^d UNIVERSITY OF TOKYO   (Japan)

^e JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

A-CENTER; CURRENT FLOWS; GATE VOLTAGES; HYPERFINE INTERACTIONS; IN-SITU; INTERDOT COUPLING; LATERAL COUPLING; LATERALLY COUPLED VERTICAL QUANTUM DOTS; SOURCE-DRAIN VOLTAGE; SPIN BLOCKADE; WEAK-COUPLING REGIME;

DRAIN CURRENT; ELECTRONIC PROPERTIES; QUANTUM CHEMISTRY; TRANSPORT PROPERTIES;

ELECTRIC RECTIFIERS;

EID: 77955729662     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3479525     Document Type: Article

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14. The current for transitions involving only the (actual as opposed to effective) charge states (1,0), (2,0), (1,1), and (2,1) is quite low so for this reason we have investigated instead transitions between the related charge states (1,2), (2,2), (1,3), and (2,3) where the current is larger.
15. In the sequence of measurements leading to the data shown in Figs. we also captured data at 0.2, 0.3, and 0.4 T, and the clear suppression of current in the trapezoid region bounded in red at 0.1 T persisted.