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相关论文: Orbital effects of a strong in-plane magnetic fiel…

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We show how the in-plane magnetic field, which breaks time-reversal and rotational symmetries of the orbital motion of electrons in a heterostructure due to the momentum-dependent inter-subband mixing, affects weak localisation correction…

介观与纳米尺度物理 · 物理学 2009-11-07 Vladimir I. Fal'ko , Tomas Jungwirth

We use the high sensitivity to magnetic flux of mesoscopic conductance fluctuations in large quantum dots to investigate changes in the two-dimensional electron dispersion caused by an in-plane magnetic field. In particular, changes in…

介观与纳米尺度物理 · 物理学 2009-11-10 D. M. Zumbuhl , J. B. Miller , C. M. Marcus , V. I. Fal'ko , T. Jungwirth , J. S. Harris

The availability of large magnetic fields at international facilities and of simulated magnetic fields that can reach the flux-quantum-per-unit-area level in cold atoms, calls for systematic studies of orbital effects of the magnetic field…

强关联电子 · 物理学 2018-08-20 S. Acheche , L-F. Arsenault , A. -M. S. Tremblay

In this work, we study how the combination of rotation and a topological defect can influence the energy spectrum of a two dimensional electron gas in a strong perpendicular magnetic field. A deviation from the linear behavior of the energy…

介观与纳米尺度物理 · 物理学 2017-09-11 Julio Brandão , Cleverson Filgueiras , Moises Rojas , Fernando Moraes

We use density-functional methods to study the effects of an external magnetic field on two-dimensional quantum dots with a rectangular hard-wall confining potential. The increasing magnetic field leads to spin polarization and formation of…

强关联电子 · 物理学 2009-11-10 E. Räsänen , A. Harju , M. J. Puska , R. M. Nieminen

The recent rise of material platforms combining magnetism and two-dimensionality of mobile carriers reveals a diverse spectrum of spin-orbit phenomena and stimulates its ongoing theoretical discussions. In this work we use the density…

介观与纳米尺度物理 · 物理学 2022-02-02 K. S. Denisov

We review various aspects of magnetoresistance in (quasi-)twodimensional systems subject to an in-plane magnetic field. Concentrating on single-particle effects, three mechanisms leading to magnetoresistance are discussed: the orbital…

介观与纳米尺度物理 · 物理学 2007-05-23 Julia S. Meyer , Vladimir I. Fal'ko , B. L. Altshuler

We show that in-plane-magnetic-field assisted spectroscopy allows extraction of the in-plane orientation and full 3D shape of the quantum mechanical orbitals of a single electron GaAs lateral quantum dot with sub-nm precision. The method is…

介观与纳米尺度物理 · 物理学 2019-05-29 Leon C. Camenzind , Liuqi Yu , Peter Stano , Jeramy Zimmerman , Arthur C. Gossard , Daniel Loss , Dominik M. Zumbühl

Effects of the spin-orbit interactions on the energy spectrum, Fermi surface and spin dynamics are studied in structural- and bulk-inversion asymmetric quasi-two-dimensional structures with a finite thickness in the presence of a parabolic…

介观与纳米尺度物理 · 物理学 2015-03-19 E. Nakhmedov , O. Alekperov , R. Oppermann

The effect of the curvature of a cylindrical surface on the energy spectrum for a curved two-dimensional electron gas in a homogeneous magnetic field is considered. The corrections to the energy spectrum are obtained for the first time…

介观与纳米尺度物理 · 物理学 2025-12-05 H. Pahlavani , M. Botshekananfard

The effect of an in-plane magnetic field upon open quasi-two-dimensional electron and hole systems is investigated in terms of the carrier ground-state spectrum. The magnetic field, classified as weak from the viewpoint of correlation…

无序系统与神经网络 · 物理学 2009-11-10 Yu. V. Tarasov

In a two-dimensional electron gas, the quantized Hall conductance can be induced by a strong magnetic field, known as the quantum Hall effect, and it can also result from the strong exchange coupling of magnetic ions, dubbed as the "quantum…

介观与纳米尺度物理 · 物理学 2015-06-12 Xin Liu , Hsiu-Chuan Hsu , Chao-Xing Liu

We have considered the conductivity properties of a two dimensional electron gas (2DEG) in two different kinds of inhomogeneous magnetic fields, i.e. a disordered distribution of magnetic flux vortices, and a periodic array of magnetic flux…

凝聚态物理 · 物理学 2009-10-22 Mads Nielsen , Per Hedegaard

We analyze orbital effects of an in-plane magnetic field on the spin structure of states of a gated quantum dot based in a two-dimensional electron gas. Starting with a $k \cdot p$ Hamiltonian, we perturbatively calculate these effects for…

介观与纳米尺度物理 · 物理学 2018-12-05 Peter Stano , Chen-Hsuan Hsu , Marcel Serina , Leon C. Camenzind , Dominik M. Zumbühl , Daniel Loss

The magnetic properties of hole quantum dots in Ge are sensitive to their shape due to the interplay between strong spin-orbit coupling and confinement. We show that the split-off band, surrounding SiGe layers, and hole-hole interactions…

We study the effect of spin-orbit interaction and in-plane effective magnetic field on the conductance of a quasi-one-dimensional ballistic electron system. The effective magnetic field includes the externally applied field, as well as the…

介观与纳米尺度物理 · 物理学 2010-10-12 Yuriy V. Pershin , James A. Nesteroff , Vladimir Privman

Within the Sommerfeld atomic model the quantization of magnetic flux through the electronic orbits is investigated together with its dependency on additional sources of magnetic fields. These sources alter the magnetic flux through the…

量子物理 · 物理学 2013-02-26 W. -D. R. Stein

We have considered the conductivity properties of a two dimensional electron gas (2DEG) in two different kinds of inhomogeneous magnetic fields, i.e.\ a disordered distribution of magnetic flux vortices, and a periodic array of magnetic…

凝聚态物理 · 物理学 2016-08-14 Mads Nielsen , Per Hedegård

The low-energy effective Hamiltonian of the strong `spin'-orbit coupled one-dimensional hole gas in a cylindrical Ge nanowire in the presence of a strong magnetic field is studied both numerically and analytically. Basing on the…

介观与纳米尺度物理 · 物理学 2023-02-13 Rui Li , Xin-Yu Qi

We consider the magnetic response of a two-dimensional electron gas (2DEG) with a spin-orbit interaction to a long-wave-length electromagnetic excitation. We observe that the transverse electric field creates spin polarization perpendicular…

介观与纳米尺度物理 · 物理学 2007-05-23 Alexander Shnirman , Ivar Martin
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