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Related papers: Pauli spin blockade in weakly coupled quantum dots

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We study spin correlation in a double quantum dot containing a few electrons in each dot (around 10). Clear current rectification with negative differential conductance is observed in the cotunneling regime, which is well explained by a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 H. W. Liu , T. Fujisawa , T. Hayashi , Y. Hirayama

It is demonstrated that parallel weakly coupled quantum dots exhibit non-equilibrium blockade regimes caused by a full occupation in the spin triplet state, in analogy to the Pauli spin blockade in serially weakly coupled quantum dots.…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Fransson

We prepare a triple quantum dot with a separate contact lead to each dot to study Pauli spin blockade in the tunnel-coupled three dots in a row. We measure the tunneling current flowing between the center dot and either the left or right…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 A. Noiri , T. Takakura , T. Obata , T. Otsuka , T. Nakajima , J. Yoneda , S. Tarucha

Double quantum dots are convenient solid-state platforms to encode quantum information. Two-electron spin states can be conveniently detected and manipulated using strong quantum selection rules based on the Pauli exclusion principle,…

Mesoscale and Nanoscale Physics · Physics 2011-11-22 N. S. Lai , W. H. Lim , C. H. Yang , F. A. Zwanenburg , W. A. Coish , F. Qassemi , A. Morello , A. S. Dzurak

We study electron transport in a double quantum dot in the Pauli spin blockade regime, in the presence of strong spin-orbit coupling. The effect of spin-orbit coupling is incorporated into a modified interdot tunnel coupling. We elucidate…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 J. Danon , Yu. V. Nazarov

Weakly coupled quantum dots in the Pauli spin blockade regime are considered with respect to spin-dependent transport. By attaching one half-metallic and one non-magnetic lead, the Pauli spin blockade if formed by a pure triplet state with…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 J. Fransson

Pauli-spin blockade (PSB) is a transport phenomenon in double quantum dots that allows for a type of spin to charge conversion often used to probe fundamental physics such as spin relaxation and singlet-triplet coupling. In this paper we…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Justin K. Perron , M. D. Stewart , Neil M. Zimmerman

Spin qubits based on interacting spins in double quantum dots have been successfully demonstrated. Readout of the qubit state involves a conversion of spin to charge information, universally achieved by taking advantage of a spin blockade…

In this work, we study hole transport in a planar silicon metal-oxide-semiconductor based double quantum dot. We demonstrate Pauli spin blockade in the few hole regime and map the spin relaxation induced leakage current as a function of…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 R. Li , F. E. Hudson , A. S. Dzurak , A. R. Hamilton

Pauli exclusion principle can lead to a supression of transport through double quantum dots, even if both quantum dots are connected by a resonant driving ac field. In this work, we study how this effect, known as spin blockade, can be…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 R. Sánchez , G. Platero , R. Aguado , E. Cota

We report Pauli spin blockade in an impurity defined carbon nanotube double quantum dot. We observe a pronounced current suppression for negative source-drain bias voltages which is investigated for both symmetric and asymmetric coupling of…

We analyze experimentally and theoretically the transport spectra of a gated lateral GaAs double quantum dot containing two holes. The strong spin-orbit interaction present in the hole subband lifts the Pauli spin blockade and allows to map…

Pauli spin blockade in quantum dot systems occurs when the charge transport is allowed only for some spin states, and it has been an efficient tool in spin-based qubit devices in semiconductors. We theoretically investigate a Pauli spin…

Mesoscale and Nanoscale Physics · Physics 2022-08-24 Yun-Pil Shim

We investigate the influence of thermal energy on the current flow and electron spin states in double quantum dots in series. The quadruplet Pauli spin blockade, which is caused by the quadruplet and doublet states, occurs at low…

Mesoscale and Nanoscale Physics · Physics 2021-04-21 M. Kondo , S. Miyota , W. Izumida , S. Amaha , T. Hatano

Singlet-triplet spin blockade in a few-electron lateral double quantum dot is investigated using simultaneous transport and charge-sensing measurements. Transport from the (1,1) to the (0,2) electron occupancy states is strongly suppressed…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. C. Johnson , J. R. Petta , C. M. Marcus , M. P. Hanson , A. C. Gossard

We analyzed the electronic transport through a double quantum dot in the spin blockade regime. Experiments of current rectification by Pauli exclusion principle in double quantum dots were discussed. The electron and nuclei spin dynamics…

Mesoscale and Nanoscale Physics · Physics 2007-08-22 Jesus Inarrea , Gloria Platero , A. H. MacDonald

Pauli blockade mechanisms -- whereby carrier transport through quantum dots is blocked due to selection rules even when energetically allowed -- are a direct manifestation of the Pauli exclusion principle, as well as a key mechanism for…

We examine electronic transport in a spin-blockaded double quantum dot. We show that by tuning the strength of the spin-orbit interaction the current flowing through the double dot exhibits a dip at zero magnetic field or a peak at a…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 G. Giavaras , Neill Lambert , Franco Nori

We consider a lateral double-dot system in the Coulomb blockade regime with a single spin-1/2 on each dot, mutually coupled by an anti-ferromagnetic exchange interaction. Each of the two dots is contacted by two leads. We demonstrate that…

Strongly Correlated Electrons · Physics 2007-08-06 V. Koerting , P. Wölfle , J. Paaske

We propose a spin-sensitive scanning probe microscopy experiment on double quantum dots in Pauli blockade conditions. Electric spin resonance is induced by an AC voltage applied to the scanning gate which induces lifting of the Pauli…

Mesoscale and Nanoscale Physics · Physics 2017-08-08 E. Wach , B. Szafran
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