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Related papers: Electric-field-induced magnetization changes in Co…

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We explore possibilities for control of magnons in two-dimensional heterostructures by an external electric field acting across a dielectric barrier. By performing ab-initio calculations for a Fe monolayer and a Fe bilayer, both suspended…

Materials Science · Physics 2022-05-25 Alberto Marmodoro , Sergiy Mankovsky , Hubert Ebert , Jan Minár , Ondřej Šipr

We find that, in the mesoscopic regime, modification of the material's surface can induce an extensive change of the material's magnetic moment. In other words, perturbation of order $N^2$ atoms on the surface of a 3-dimensional solid can…

Mesoscale and Nanoscale Physics · Physics 2024-05-01 Kevin Moseni , Sinisa Coh

Our results describe an unprecedented example of change in the mechanism of magnetically-induced electric polarization from spin current to spin-dependent p-d hybridization model. We have followed the evolution of the magnetic structures of…

We report on reversible electric-field-driven magnetic domain wall motion in a Cu/Ni multilayer on a ferroelectric BaTiO$_3$ substrate. In our heterostructure, strain-coupling to ferroelastic domains with in-plane and perpendicular…

Magnetic multilayers are a rich class of materials systems with numerous highly tunable physical parameters that determine both their magnetic and electronic properties. Here we present a comprehensive experimental study of a novel system,…

Materials Science · Physics 2022-06-02 Martin Lonsky , Myoung-Woo Yoo , Yi-Siou Huang , Jiangchao Qian , Jian-Min Zuo , Axel Hoffmann

Electric-field modulation of magnetism in strain-mediated multiferroic heterostructures is considered a promising scheme for enabling memory and magnetic microwave devices with ultralow power consumption. However, it is not well understood…

The effect of electronic correlations on the orbital magnetization in real materials has not been explored beyond a static mean-field level. Based on the dynamical mean-field theory, the effect of electronic correlations on the orbital…

Strongly Correlated Electrons · Physics 2021-01-27 Zhimou Zhou , Shishir Kumar Pandey , Ji Feng

We have measured the magnetization of a dual-subband two-dimensional electron gas, confined in a GaAs/AlGaAs heterojunction. In contrast to two-dimensional electron gases with a single subband, we observe non-1/B-periodic, triangularly…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. R. Schaapman , U. Zeitler , P. C. M. Christianen , J. C. Maan , D. Reuter , A. D. Wieck , D. Schuh , M. Bichler

We experimentally investigate the current-induced magnetization reversal in Pt/[Co/Ni]$_3$/Al multilayers combining the anomalous Hall effect and magneto-optical Kerr effect techniques in crossbar geometry. The magnetization reversal occurs…

Magnetic systems exhibiting exchange bias effect are being considered as materials for applications in data storage devices, sensors and biomedicine. As the size of new mag- netic devices is being continuously reduced, the influence of…

We report on a 59Co NMR investigation of the trigonal cobaltate Ca3Co2O6 carried out on a single crystal, providing precise determinations of the electric field gradient and chemical shift tensors, and of the internal magnetic fields at the…

Strongly Correlated Electrons · Physics 2015-05-20 G. Allodi , R. De Renzi , S. Agrestini , C. Mazzoli , M. R. Lees

Electric field effect on magnetism is an appealing technique for manipulating the magnetization at a low cost of energy. Here, we show that the local magnetization of the ultra-thin Co film can be switched by just applying a gate electric…

Materials Science · Physics 2016-05-25 H. Kakizakai , F. Ando , T. Koyama , K. Yamada , M. Kawaguchi , S. Kim , K. -J. Kim , T. Moriyama , D. Chiba , T. Ono

In-plane magnetization is induced by the Edelstein effect in the Rashba spin-orbit interaction system. However, out-of-plane magnetization is more useful for switching a ferromagnetic memory. We study analytically and numerically…

Mesoscale and Nanoscale Physics · Physics 2025-04-16 Motohiko Ezawa

In this work we present a theoretical approach to study the effect of an in-plane (parallel) magnetic field on the microwave-assisted transport properties of a two-dimensional electron system. Previous experimental evidences show that…

Mesoscale and Nanoscale Physics · Physics 2012-11-22 Jesus Inarrea , Gloria Platero

Effect of dc electric field on transport of highly mobile 2D electrons is studied in wide GaAs single quantum wells placed in titled magnetic fields. The study shows that in perpendicular magnetic field resistance oscillates due to electric…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 William Mayer , Sergey Vitkalov , A. A. Bykov

The magnetotransport of highly mobile 2D electrons in wide GaAs single quantum wells with three populated subbands placed in titled magnetic fields is studied. The bottoms of the lower two subbands have nearly the same energy while the…

Mesoscale and Nanoscale Physics · Physics 2016-03-16 William Mayer , Jesse Kanter , Javad Shabani , Sergey Vitkalov , A. K. Bakarov , A. A. Bykov

We consider theoretically the effect of an inhomogeneous magnetoelectric coupling on the magnon-induced dynamics of a ferromagnet. The magnon-mediated magnetoelectric torque affects both the homogeneous magnetization and magnon-driven…

Mesoscale and Nanoscale Physics · Physics 2016-08-25 Vetle Risinggård , Iryna Kulagina , Jacob Linder

We investigate the effect of an applied magnetic field on resonant tunneling of electrons through the bound states of self-assembled InAs quantum dots (QDs) embedded within an (AlGa)As tunnel barrier. At low temperatures (no more than 2 K),…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 E. E. Vdovin , Yu. N. Khanin , O. Makarovsky , A. Patane , L. Eaves , M. Henini , C. J. Mellor , K. A. Benedict , R. Airey

Anisotropic magnetic properties of a layered kagome-like system Cu3Bi(SeO3)2O2Br have been studied by bulk magnetization and magnetic susceptibility measurements as well as powder and single-crystal neutron diffraction. At T_N = 27.4 K the…

Strongly Correlated Electrons · Physics 2012-10-16 M. Pregelj , O. Zaharko , A. Günther , A. Loidl , V. Tsurkan , S. Guerrero

Magnetic field effects in Kondo insulators are studied theoretically, using a local moment approach to the periodic Anderson model within the framework of dynamical mean-field theory. Our main focus is on field-induced changes in…

Strongly Correlated Electrons · Physics 2009-11-13 Debabrata Parihari , N. S. Vidhyadhiraja , David E. Logan