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Theory of weak localization is developed for two-dimensional holes in the presence of in-plane magnetic field. The Zeeman splitting even in the hole momentum results in the spin-dependent phase changing the quantum interference. The…

Mesoscale and Nanoscale Physics · Physics 2022-12-28 M. O. Nestoklon , L. E. Golub

The response of semiconductor materials to external magnetic fields is a reliable approach to probe intrinsic electronic and spin-dependent properties. In this study, we investigate the common Zeeman splitting features of novel wurtzite…

Mesoscale and Nanoscale Physics · Physics 2019-08-29 Paulo E. Faria Junior , Davide Tedeschi , Marta De Luca , Benedikt Scharf , Antonio Polimeni , Jaroslav Fabian

We have developed a theory of the longitudinal $g$ factor of light holes in semiconductor quantum wells. It is shown that the absolute value of the light-hole $g$-factor can strongly exceed its value in the bulk and, moreover, the…

Mesoscale and Nanoscale Physics · Physics 2015-05-07 M. V. Durnev , M. M. Glazov , E. L. Ivchenko

We investigate the topological nodal structure of three-dimensional (3D) ZrTe$_5$ driven by Zeeman splitting as a function of the direction of external magnetic (B) field by using a Wannier-function-based tight-binding (WFTB) model obtained…

Mesoscale and Nanoscale Physics · Physics 2020-01-29 Yichul Choi , John W. Villanova , Kyungwha Park

The complex structure of the valence band in many semiconductors leads to multifaceted and unusual properties for spin-3/2 hole systems compared to typical spin-1/2 electron systems. In particular, two-dimensional hole systems show a highly…

Mesoscale and Nanoscale Physics · Physics 2018-06-22 C. Gradl , R. Winkler , M. Kempf , J. Holler , D. Schuh , D. Bougeard , A. Hernández-Mínguez , K. Biermann , P. V. Santos , C. Schüller , T. Korn

One-dimensional (1D) hole gas confined in a cylindrical Ge nanowire has potential applications in quantum information technologies. Here, we analytically study the low-energy properties of this 1D hole gas. The subbands of the hole gas are…

Mesoscale and Nanoscale Physics · Physics 2022-05-10 Rui Li

We study the magnetic anisotropy effects on the localized sub-gap excitations induced by quantum impurities coupled to a superconducting host. We establish the ground-state phase diagrams for single-channel and two-channel high-spin Kondo…

Superconductivity · Physics 2011-05-25 Rok Zitko , Oliver Bodensiek , Thomas Pruschke

Three-dimensional anisotropy of the Lande g-factor and its electrical modulation are studied for single uncapped InAs self-assembled quantum dots (QDs). The g-factor is evaluated from measurement of inelastic cotunneling via Zeeman…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 S. Takahashi , R. S. Deacon , A. Oiwa , K. Shibata , K. Hirakawa , S. Tarucha

In this study, we observe that the conductance of a quantum point contact on a GaAs/AlGaAs double quantum well depends significantly on the magnetic field perpendicular to the two-dimensional electron gas. In the presence of the magnetic…

Mesoscale and Nanoscale Physics · Physics 2021-02-01 D. Terasawa , S. Norimoto , T. Arakawa , M. Ferrier , A. Fukuda , K. Kobayashi , Y. Hirayama

We report on measurements of quantized conductance in gate-defined quantum point contacts in bilayer graphene that allow the observation of subband splittings due to spin-orbit coupling. The size of this splitting can be tuned from 40 to 80…

Mesoscale and Nanoscale Physics · Physics 2020-05-05 L. Banszerus , B. Frohn , T. Fabian , S. Somanchi , A. Epping , M. Müller , D. Neumaier , K. Watanabe , T. Taniguchi , F. Libisch , B. Beschoten , F. Hassler , C. Stampfer

The valley of transition metal dichalcogenides provides an additional platform to manipulate spin due to its unique selection rule. Normally, intralayer optical transitions in magnetic field show a Zeeman splitting with g factor of about…

This article is a brief review of Zeeman spin-orbit coupling, arising in a low-carrier commensurate N\'eel antiferromagnet subject to magnetic field. The field tends to lift the degeneracy of the electron spectrum. However, a hidden…

Strongly Correlated Electrons · Physics 2019-06-13 Revaz Ramazashvili

We investigated the electron transport property of the InGaAs/GaAs double quantum dots, the electron g-factors of which are different from each other. We found that in a magnetic field, the resonant tunneling is suppressed even if one of…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 S. M. Huang , Y. Tokura , H. Akimoto , K. Kono , J. J. Lin , S. Tarucha , K. Ono

We use magnetotunneling spectroscopy to observe the spin splitting of the ground state of an X-valley-related Si-donor impurity in an AlAs barrier. We determine the absolute magnitude of the effective Zeeman spin splitting factors of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 E. E. Vdovin , Yu. N. Khanin , L. Eaves , M. Henini , G. Hill

The nonlinear Zeeman effect can induce splittings and asymmetries of magnetic-resonance lines in the geophysical magnetic-field range. We demonstrate a scheme to suppress the nonlinear Zeeman effect all optically based on spin locking. Spin…

We report on a complex nontrivial behavior of the optical anisotropy of quantum dots that is induced by a magnetic field in the plane of the sample. We find that the optical axis either rotates in the opposite direction to that of the…

A clear signature of Zeeman split states crossing is observed in Landau fan diagram of strained germanium two-dimensional hole gas. The underlying mechanisms are discussed based on a perturbative model yielding a closed formula for the…

Mesoscale and Nanoscale Physics · Physics 2020-10-20 Patrick Del Vecchio , Mario Lodari , Amir Sammak , Giordano Scappucci , Oussama Moutanabbir

We investigate the effective Lande factor in semiconductor nanowires with strong Rashba spin-orbit coupling. Using the $\mathbf{k}\cdot\mathbf{p}$ theory and the envelope function approach we derive a conduction band Hamiltonian where the…

Mesoscale and Nanoscale Physics · Physics 2024-01-17 J. Czarnecki , A. Bertoni , G. Goldoni , P. Wójcik

The Zeeman splitting of localized electrons in a quantum dot in the Kondo regime is studied using a new slave-boson formulation. Our results show that the Kondo peak splitting depends on the gate potential applied to the quantum dot and on…

Strongly Correlated Electrons · Physics 2013-05-03 J. M. Aguiar Hualde , G. Chiappe , E. V. Anda

We develop a general method to calculate Zeeman splittings of electrons and holes in semiconductor nanostructures within the tight-binding framework. The calculation is carried out in the electron-hole picture and is extensible to the…

Other Condensed Matter · Physics 2007-05-23 Pochung Chen