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The giant magnetoimpedance effect in composite wires consising of a non-magnetic inner core and soft magnetic shell is studied theoretically. It is assumed that the magnetic shell has a helical anisotropy. The current and field…

Materials Science · Physics 2007-05-23 N. A. Buznikov , A. S. Antonov , A. B. Granovsky , C. G. Kim , C. O. Kim , X. P. Li , S. S. Yoon

Recent theoretical and experimental results from quasi-one dimensional heavy hole systems have suggested that heavy hole gases have a strongly anisotropic g factor. In this theoretical paper, we propose a method for measuring this…

Mesoscale and Nanoscale Physics · Physics 2019-02-12 Samuel Bladwell , Oleg Sushkov

We demonstrate that a split-gate quantum wire in the integer quantum Hall regime can exhibit electronic transport hysteresis for up- and down-sweeps of a magnetic field. This behavior is shown to be due to phase spin transitions between two…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. Ihnatsenka , I. V. Zozoulenko

Historically, comprehensive studies of dilute ferromagnetic semiconductors, e.g., $p$-type (Cd,Mn)Te and (Ga,Mn)As, paved the way for a quantitative theoretical description of effects associated with spin-orbit interactions in solids, such…

Materials Science · Physics 2018-05-09 M. Sawicki , O. Proselkov , C. Sliwa , P. Aleshkevych , J. Z. Domagala , J. Sadowski , T. Dietl

We have studied nucleation of magnetic domains and propagation of magnetic domain walls (DWs) induced by pulsed magnetic field in a ferromagnetic film with in-plane uniaxial anisotropy. Different from what have been seen up to now in…

Materials Science · Physics 2020-12-30 Xiaochao Zhou , Nicolas Vernier , Guillaume Agnus , Sylvain Eimer , Ya Zhai

Accurate modelling of magnetism is pivotal for elucidating the microscopic origins of magnetic phenomena in functional materials. However, for a specified class of materials, such as random dilute ferromagnets or alloys, the reliance on…

Materials Science · Physics 2026-05-21 K. Das , N. Gonzalez Szwacki , K. Gas , M. Sawicki , R. Hayn , D. Sztenkiel

When a three-dimensional (3D) ferromagnetic topological insulator thin film is magnetized out-of-plane, conduction ideally occurs through dissipationless, one-dimensional (1D) chiral states that are characterized by a quantized, zero-field…

Mesoscale and Nanoscale Physics · Physics 2015-07-13 A. Kandala , A. Richardella , S. Kempinger , C-X. Liu , N. Samarth

The interplay between angular and quantum magnetoresistance oscillations in quasi-two-dimensional metals leads to the angular oscillations of the amplitude of quantum oscillations. This effect becomes pronounced in high magnetic field, when…

Strongly Correlated Electrons · Physics 2019-01-28 P. D. Grigoriev , T. I. Mogilyuk

In this article, I study magnetic response of electron wavefunctions in a commensurate collinear antiferromagnet. I show that, at a special set of momenta, hidden anti-unitary symmetry protects Kramers degeneracy of Bloch eigenstates…

Strongly Correlated Electrons · Physics 2008-09-25 Revaz Ramazashvili

One-dimensional (1D) quantum wires provide a versatile platform for studying strong electron-electron interactions and collective excitations under confinement. Coulomb drag between 1D systems offers a powerful probe of Tomonaga-Luttinger…

Mesoscale and Nanoscale Physics · Physics 2026-03-24 Mingyang Zheng , Rebika Makaju , Rasul Gazizulin , Alex Levchenko , Sadhvikas J. Addamane , Dominique Laroche

We consider the soft wall model for a heuristic holographical modelling of a confining gauge theory and discuss how the introduction of a (constant) magnetic field influences the (de)confinement phase structure. We use the entanglement…

High Energy Physics - Theory · Physics 2017-04-26 David Dudal , Subhash Mahapatra

We propose an experiment, which would allow to pinpoint the role of spin-orbit coupling in the metal-nonmetal transition observed in a number of two-dimensional systems at low densities. Namely, we demonstrate that in a parallel magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Guang-Hong Chen , M. E. Raikh , Yong-Shi Wu

The recently discovered giant magnetic anisotropy of single magnetic Co atoms raises the hope of magnetic storage in small clusters. We present a joint experimental and theoretical study of the magnetic anisotropy and the spin dynamics of…

Materials Science · Physics 2009-07-06 T. Balashov , T. Schuh , A. F. Takacs , A. Ernst , S. Ostanin , J. Henk , I. Mertig , P. Bruno , T. Miyamachi , S. Suga , W. Wulfhekel

Magnetic gates in close proximity to graphene can induce ferromagnetic correlations. We study the effect of such induced magnetization dependent Zeeman splittings on the graphene transport properties. We estimate that induced spin…

Mesoscale and Nanoscale Physics · Physics 2008-03-07 H. Haugen , Daniel Huertas-Hernando , Arne Brataas

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

PbTe is a semiconductor with promising properties for topological quantum computing applications. Here we characterize quantum dots in PbTe nanowires selectively grown on InP. Charge stability diagrams at zero magnetic field reveal large…

Mesoscale and Nanoscale Physics · Physics 2022-09-28 S. C. ten Kate , M. F. Ritter , A. Fuhrer , J. Jung , S. G. Schellingerhout , E. P. A. M. Bakkers , H. Riel , F. Nichele

Topological kagome magnets offer a rich landscape for exploring the intricate interplay of quantum interactions among geometry, topology, spin, and correlation. GdTi3Bi4 crystallizes in layered Ti based kagome nets intertwined with zigzag…

We investigate the effects of an in-plane magnetic field on the weak antilocalization signature of near-surface quantum wells lacking bulk and inversion symmetry. The measured magnetoconductivity exhibits a strong anisotropy with respect to…

We investigate an electrostatically defined quantum point contact in a high-mobility InSb two-dimensional electron gas. Well-defined conductance plateaus are observed, and the subband structure of the quantum point contact is extracted from…

Mesoscale and Nanoscale Physics · Physics 2021-04-21 Zijin Lei , Christian A. Lehner , Erik Cheah , Christopher Mittag , Matija Karalic , Werner Wegscheider , Klaus Ensslin , Thomas Ihn

Nematic superconductors are characterized by an apparent crystal symmetry breaking that results in the anisotropy of the in-plane upper critical magnetic field $H_{c2}$. The symmetry breaking is usually attributed to the strain of the…