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Related papers: Anisotropic modification of the effective hole $g$…

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Carbon-doped high mobility two-dimensional hole gases grown on (110) oriented GaAs substrates have been grown with hole mobilities exceeding 10^6 cm^2/Vs in single heterojunction GaAs/AlGaAs structures. At these high mobilities, a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 S. Schmult , C. Gerl , U. Wurstbauer , C. Mitzkus , W. Wegscheider

Hole spins have gained considerable interest in the past few years due to their potential for fast electrically controlled qubits. Here, we study holes confined in Ge hut wires, a so far unexplored type of nanostructure. Low temperature…

We address spin properties and spin dynamics of carriers and charged excitons in CdSe/CdS colloidal nanoplatelets with thick shells. Magneto-optical studies are performed by time-resolved and polarization-resolved photoluminescence,…

We study the variation in the Land$\acute{\text{e}}$ g-factor of electron spins induced by both anisotropic gate potentials and magnetic fields in InAs quantum dots for possible implementation towards solid state quantum computing. In this…

Mesoscale and Nanoscale Physics · Physics 2011-10-26 Sanjay Prabhakar , James E Raynolds , Roderick Melnik

The effect of spin-orbit (and Darwin) interaction on a 2D electron gas subject to a radial symmetric, inhomogeneous $1/r$-magnetic field is discussed analytically in a perturbative and non-perturbative manner. For this purpose, we…

Mesoscale and Nanoscale Physics · Physics 2023-06-21 Dominik Sidler , Michael Ruggenthaler , Angel Rubio

We report a severe, spin-dependent, Fermi contour anisotropy induced by parallel magnetic field in a high-mobility (001) GaAs two-dimensional hole system. Employing commensurability oscillations created by a unidirectional,…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 D. Kamburov , M. Shayegan , R. Winkler , L. N. Pfeiffer , K. W. West , K. W. Baldwin

Hall effect of two-dimensional holes that are spin-polarized by a strong parallel magnetic field was explored with a small tilt angle. The Hall resistivity increases nonlinearly with the magnetic field and exhibits negative corrections. The…

Mesoscale and Nanoscale Physics · Physics 2009-09-23 Hwayong Noh , S. Lee , S. H. Chun , H. C. Kim , L. N. Pfeiffer , K. W. West

Spin-squeezing in systems with single-particle control is a well-established resource of modern quantum technology. Applied in an optical lattice clock can reduce the statistical uncertainty of spectroscopic measurements. Here, we consider…

Quantum Gases · Physics 2024-07-11 Tanausú Hernández Yanes , Artur Niezgoda , Emilia Witkowska

Photoinduced circular dichroism experiments in an oblique magnetic field allow measurements of Larmor precession frequencies, and so give a precise determination of the electron Lande g factor and its anisotropy in self-assembled InAs/GaAs…

Materials Science · Physics 2009-11-13 E. Aubry , C. Testelin , F. Bernardot , M. Chamarro , A. Lemaitre

We review the existing and present the new results of $\bf kp$ calculations of the electron, hole, and exciton effective $g$-factors in semiconductor nanocrystals of different shape and symmetry. We propose a simple yet accurate method for…

Mesoscale and Nanoscale Physics · Physics 2020-11-24 M. A. Semina , A. A. Golovatenko , A. V. Rodina

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

Whilst the g-factor can be anisotropic due to the spin-orbit interaction (SOI), its existence in solids cannot be simply asserted from a band structure, which hinders progress on studies from such the viewpoints. The g-factor in bismuth…

The spectral asymmetry of the wave energy distribution of dust particles during mode-coupling induced melting, observed for the first time in plasma crystals by Cou\"edel et al. [Phys. Rev. E 89, 053108 (2014)], is studied theoretically and…

Plasma Physics · Physics 2016-01-20 Ingo Laut , Sergey K. Zhdanov , Christoph Räth , Hubertus M. Thomas , Gregor E. Morfill

The spin properties of charge carriers confined in CuCl semiconductor nanocrystals (NCs) of different sizes (radius from 1.8 nm up to 28 nm) crystallized in a glass matrix are studied experimentally and theoretically. By means of…

We evaluate the charge and longitudinal spin response functions of a two-dimensional electron gas with $e^2/r$ interactions in an arbitrary state of spin polarization, using a structurally self-consistent approach to treat exchange and…

Strongly Correlated Electrons · Physics 2015-06-24 B. Davoudi , M. P. Tosi

The electronic structure of a 2D gas subjected to a tilted magnetic field, with a strong component parallel to the GaAs/AlGaAs interface and a weak component oriented perpendicularly, is studied theoretically. It is shown that the parallel…

Condensed Matter · Physics 2009-10-22 L. Smrcka , T. Jungwirth

We present an anisotropy of the hysteretic transport around the spin transition point at Landau level filling factor $\nu=2/3$ in tilted magnetic field. When the direction of the in-plane component of the magnetic field $B_{\parallel}$ is…

Strongly Correlated Electrons · Physics 2015-05-20 K. Iwata , M. Morino , A. Fukuda , N. Kumada , Z. F. Ezawa , Y. Hirayama , A. Sawada

Interacting two-dimensional electrons confined in a GaAs quantum well exhibit isotropic transport when the Fermi level resides in the first excited ($N=1$) Landau level. Adding an in-plane magnetic field ($B_{||}$) typically leads to an…

Mesoscale and Nanoscale Physics · Physics 2016-08-15 M. A. Mueed , Md. Shafayat Hossain , L. N. Pfeiffer , K. W. West , K. W. Baldwin , M. Shayegan

Electrically defined semiconductor quantum dots are attractive systems for spin manipulation and quantum information processing. Heavy-holes in both Si and GaAs are promising candidates for all-electrical spin manipulation, owing to the…

Mesoscale and Nanoscale Physics · Physics 2016-12-06 Daisy Q. Wang , Oleh Klochan , Jo-Tzu Hung , Dimitrie Culcer , Ian Farrer , David A. Ritchie , Alexander R. Hamilton

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