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Related papers: Two-dimensional Induced Ferromagnetism

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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

Magnetic susceptibility, high-field magnetization and inelastic neutron scattering experiments are used to study the magnetic properties of a new S=1 quasi-1-dimensional antiferromagnet PbNi2V2O8. Inter-chain interactions are shown to be…

Strongly Correlated Electrons · Physics 2009-10-31 Y. Uchiyama , Y. Sasago , I. Tsukada , K. Uchinokura , A. Zheludev , T. Hayashi , N. Miura , P. Böni

The recent discovery of two-dimensional magnetic order in van-der Waals materials has stimulated a renaissance in the field of atomically-thin magnets. This has led to promising demonstrations of spintronic functionality such as tunneling…

The dielectric response in a magnetic field is routinely used to probe the existence of coupled magnetic and elastic order in the multiferroics. However, here we demonstrate that magnetism is not necessary to produce a magnetocapacitance…

Disordered Systems and Neural Networks · Physics 2008-10-22 Meera M. Parish , Peter B. Littlewood

Gaining control of the building blocks of magnetic materials and thereby achieving particular characteristics will make possible the design and growth of bespoke magnetic devices. While progress in the synthesis of molecular materials, and…

Current theoretical description of field-induced electron emission remains mostly bounded by the classic Fowler-Nordheim (FN) framework developed nearly one century ago. For the emerging class of two-dimensional (2D) materials, many basic…

Mesoscale and Nanoscale Physics · Physics 2017-11-17 Yee Sin Ang , M. Zubair , K. J. A. Ooi , L. K. Ang

Altermagnetism has so far been associated with compensated magnetic moments carried by atoms. Here we introduce Stoner instability induced interstitial-electron altermagnetism, a distinct mechanism in which altermagnetic order is carried…

Strongly Correlated Electrons · Physics 2026-03-30 Xia Cheng , Yang Wu , Zhenzhou Guo , Tie Yang , Weizhen Meng , Zhenxiang Cheng , Zhi-Ming Yu , Xiaotian Wang

The recent discovery of magnetism in two-dimensional van der Waals systems opens the door to discovering exciting physics. We investigate how a current can control the ferromagnetic properties of such materials. Using symmetry arguments, we…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 Øyvind Johansen , Vetle Risinggård , Asle Sudbø , Jacob Linder , Arne Brataas

We present a theory of carrier-induced ferromagnetism in diluted magnetic semiconductors (III_{1-x} Mn_x V) which allows for arbitrary itinerant-carrier spin polarization and dynamic correlations. Both ingredients are essential in…

Condensed Matter · Physics 2009-10-31 Jürgen König , Hsiu-Hau Lin , Allan H. MacDonald

Effects due to fermion-vacuum polarization by an external static magnetic field are considered in a two-dimensional noncompact curved space with a nontrivial topology. An expression for the vacuun angular momentum is obtained. Like the…

High Energy Physics - Theory · Physics 2007-05-23 Yu. A. Sitenko , D. G. Rakityansky

The advent of magnetic two-dimensional electron gases (2DEGs) at oxide interfaces has provided new opportunities in the field of spintronics. The enhancement of magnetism in 2DEGs at oxide interfaces continues to be a significant challenge,…

Motivated by recent experimental results reporting anomalous drag resistance behavior in dilute bilayer two-dimensional (2D) hole systems in the presence of a magnetic field parallel to the 2D plane, we have carried out a many-body Fermi…

Strongly Correlated Electrons · Physics 2009-11-10 S. Das Sarma , E. H. Hwang

The effect of an exchange field on electrical transport in thin films of metallic ferromagnetic manganites has been investigated. The exchange field was induced both by direct exchange coupling in a ferromagnet/antiferromagnet multilayer…

Condensed Matter · Physics 2009-10-31 I. N. Krivorotov , K. R. Nikolaev , A. Yu. Dobin , A. M. Goldman , E. D. Dahlberg

Three-dimensional magnetic nanostructures have recently emerged as artificial magnetic material types with unique properties bearing potential for applications, including magnonic devices. Interconnected magnetic nanowires are a…

Mesoscale and Nanoscale Physics · Physics 2023-06-02 Rajgowrav Cheenikundil , Massimiliano d'Aquino , Riccardo Hertel

Strong light-matter interactions within nanoscale structures offer the possibility of optically controlling material properties. Motivated by the recent discovery of intrinsic long-range magnetic order in two-dimensional materials, which…

Mesoscale and Nanoscale Physics · Physics 2019-11-05 Yingzhen Tian , Weiwei Gao , Erik A. Henriksen , James R. Chelikowsky , Li Yang

We report a method for acquiring Foucault images and small-angle electron diffraction patterns in external magnetic fields using a conventional transmission electron microscope without any modification. In the electron optical system that…

Materials Science · Physics 2019-11-06 Hiroshi Nakajima , Atsuhiro Kotani , Ken Harada , Yui Ishii , Shigeo Mori

We compute the magnetic susceptibilities of interacting electrons in the presence of disorder on a two-dimensional square lattice by means of quantum Monte Carlo simulations. Clear evidence is found that at sufficiently low temperatures…

Strongly Correlated Electrons · Physics 2015-05-30 Prabuddha B. Chakraborty , Krzysztof Byczuk , Dieter Vollhardt

Two-dimensional dilute magnetic semiconductors can provide fundamental insights in the very nature of magnetic orders and their manipulation through electron and hole doping. Despite the fundamental physics, due to the large charge density…

Materials Science · Physics 2015-09-07 L. Seixas , A. Carvalho , A. H. Castro Neto

We calculate the temperature dependent long-range magnetic coupling in the presence of dilute concentrations of random magnetic impurities in chiral multilayer two-dimensional semimetals, i.e., undoped intrinsic multilayer graphene.…

Mesoscale and Nanoscale Physics · Physics 2017-04-17 Hongki Min , E. H. Hwang , S. Das Sarma

Dimensionality can strongly influence the magnetic structure of solid systems. Here, we predict theoretically and confirm experimentally that the antiferromagnetic (AFM) ground state of bulk gadolinium germanide metalloxene, which has a…