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Related papers: Magnetic Field Evolution of Spin Blockade in Ge/Si…

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We present measurements on gate-defined double quantum dots in Ge-Si core-shell nanowires, which we tune to a regime with visible shell filling in both dots. We observe a Pauli spin blockade and can assign the measured leakage current at…

Mesoscale and Nanoscale Physics · Physics 2016-08-02 Matthias Brauns , Joost Ridderbos , Ang Li , Erik P. A. M. Bakkers , Wilfred G. van der Wiel , Floris A. Zwanenburg

We investigate spin relaxation in a silicon double quantum dot via leakage current through Pauli blockade as a function of interdot detuning and magnetic field. A dip in leakage current as a function of magnetic field on a \sim 40 mT field…

Mesoscale and Nanoscale Physics · Physics 2012-09-28 G. Yamahata , T. Kodera , H. O. H. Churchill , K. Uchida , C. M. Marcus , S. Oda

We report on experimental detection of the spin-orbit interaction field in an InAs nanowire double quantum dot device. In the spin blockade regime, leakage current through the double quantum dot is measured and is used to extract the…

Mesoscale and Nanoscale Physics · Physics 2018-08-22 Ji-Yin Wang , Guang-Yao Huang , Shaoyun Huang , Jianhong Xue , Dong Pan , Jianhua Zhao , H. Q. Xu

We study the effects of magnetic and electric fields on the g-factors of spins confined in a two-electron InAs nanowire double quantum dot. Spin sensitive measurements are performed by monitoring the leakage current in the Pauli blockade…

Mesoscale and Nanoscale Physics · Physics 2013-07-24 M. D. Schroer , K. D. Petersson , M. Jung , J. R. Petta

Group IV quantum dot hole spin systems, exhibiting strong spin-orbit coupling, provide platforms for various qubit architectures. The rapid advancement of solid-state technologies has significantly improved qubit quality, including the time…

Mesoscale and Nanoscale Physics · Physics 2025-11-10 Zhanning Wang , S. D. Liles , Joe Hillier , A. R. Hamilton , Dimitrie Culcer

Holes in nanowires have drawn significant attention in recent years because of the strong spin-orbit interaction, which plays an important role in constructing Majorana zero modes and manipulating spin-orbit qubits. Here, from the strongly…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Ting Zhang , He Liu , Fei Gao , Gang Xu , Ke Wang , Xin Zhang , Gang Cao , Ting Wang , Jian-Jun Zhang , Xuedong Hu , Hai-Ou Li , Guo-Ping Guo

The distribution of Coulomb blockade peak heights as a function of magnetic field is investigated experimentally in a Ge-Si nanowire quantum dot. Strong spin-orbit coupling in this hole-gas system leads to antilocalization of Coulomb…

Mesoscale and Nanoscale Physics · Physics 2014-07-01 A. P. Higginbotham , F. Kuemmeth , T. W. Larsen , M. Fitzpatrick , J. Yao , H. Yan , C. M. Lieber , C. M. Marcus

Pauli spin blockade (PSB) in double quantum dots (DQDs) has matured into a prime technique for precise measurements of nanoscale system parameters. In this work we demonstrate that systems with site-dependent g-tensors and spin-polarized…

Mesoscale and Nanoscale Physics · Physics 2021-06-16 Philipp M. Mutter , Guido Burkard

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 (PSB) has long been an important tool for spin read-out in double quantum dot (DQD) systems with interdot tunneling $t$. In this paper we show that the blockade is lifted if the two dots experience distinct effective…

Mesoscale and Nanoscale Physics · Physics 2020-03-09 Philipp Mutter , Guido Burkard

The spin-orbit interaction lies at the heart of quantum computation with spin qubits, research on topologically non-trivial states, and various applications in spintronics. Hole spins in Ge/Si core/shell nanowires experience a spin-orbit…

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

Spin-orbit coupling is key to all-electrical control of quantum-dot spin qubits, and is frequently stronger for holes than for electrons. Here we investigate Pauli spin blockade for two heavy holes in a gated double quantum dot in an…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Jo-Tzu Hung , Elizabeth Marcellina , Bin Wang , Alexander R. Hamilton , Dimitrie Culcer

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

We report the dispersive readout of the spin state of a double quantum dot formed at the corner states of a silicon nanowire field-effect transistor. Two face-to-face top-gate electrodes allow us to independently tune the charge occupation…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 A. C. Betz , R. Wacquez , M. Vinet , X. Jehl , A L. Saraiva , M. Sanquer , A. J. Ferguson , M. F. Gonzalez-Zalba

We demonstrate direct measurements of the spin-orbit interaction and Land\'e g factors in a semiconductor nanowire double quantum dot. The device is made from a single-crystal pure-phase InAs nanowire on top of an array of finger gates on a…

Mesoscale and Nanoscale Physics · Physics 2016-08-04 Jiyin Wang , Shaoyun Huang , Zijin Lei , Dong Pan , Jianhua Zhao , H. Q. Xu

The spin degree of freedom is crucial for the understanding of any condensed matter system. Knowledge of spin-mixing mechanisms is not only essential for successful control and manipulation of spin-qubits, but also uncovers fundamental…

We experimentally and theoretically investigate the spin orbit (SO) field in a physically defined, p type metal oxide semiconductor double quantum dot in silicon. We measure the magnetic field dependence of the leakage current through the…

We study ballistic hole transport through Ge/Si core/shell nanowires at low temperatures. We observe Fabry-P$\acute{e}$rot interference patterns as well as conductance plateaus at integer multiples of 2e$^2$/h at zero magnetic field.…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 D. Kotekar-Patil , B. -M. Nguyen , J. Yoo , S. A. Dayeh , S. M. Frolov

The choice of substrate orientation for semiconductor quantum dot circuits offers opportunities for tailoring spintronic properties such as g-factors for specific functionality. In this letter, we demonstrate the operation of a few-electron…

Mesoscale and Nanoscale Physics · Physics 2022-04-20 T. Nakagawa , S. Lamoureux , T. Fujita , J. Ritzmann , A. Ludwig , A. D. Wieck , A. Oiwa , M. Korkusinski , A. Sachrajda , D. G. Austing , L. Gaudreau
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