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For applications making use of magnonic spin currents damping effects, which decrease the spin conductivity, have to be minimized. We here investigate the magnon transport in an yttrium iron garnet thin film with strongly reduced effective…

Mesoscale and Nanoscale Physics · Physics 2021-12-08 Janine Gückelhorn , Tobias Wimmer , Manuel Müller , Stephan Geprägs , Hans Hübl , Rudolf Gross , Matthias Althammer

One of the main goals of spintronics is to improve transport of information carriers and to achieve new functionalities with ultra-low dissipation. A most promising strategy for this holy grail is to use pure magnon currents created and…

Mesoscale and Nanoscale Physics · Physics 2015-11-04 Kouki Nakata , Pascal Simon , Daniel Loss

We report a systematic study of spin transport in antiferromagnetic (AF) insulators having a wide range of ordering temperatures. Spin current is dynamically injected from Y3Fe5O12 (YIG) into various AF insulators in Pt/insulator/YIG…

Materials Science · Physics 2015-09-16 Hailong Wang , Chunhui Du , P. Chris Hammel , Fengyuan Yang

Magnetic noise spectroscopy provides a noninvasive probe of spin dynamics in magnetic materials. We consider two-dimensional magnetically ordered insulators with magnon excitations, especially those supporting long-distance magnon…

Mesoscale and Nanoscale Physics · Physics 2022-05-25 Haocheng Fang , Shu Zhang , Yaroslav Tserkovnyak

We investigate ballistic spin transport in a two dimensional electron gas system through magnetic barriers of various geometries using the transfer matrix method. While most of the previous studies have focused on the effect of magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Nammee Kim , Heesang Kim

Altermagnetism, a new phase of collinear spin-order sharing similarities with antiferromagnets and ferromagnets, has introduced a new guiding principle for spintronic/thermoelectric applications due to its direction-dependent magnetic…

Strongly Correlated Electrons · Physics 2025-08-19 Samuele Giuli , Carlos Mejuto-Zaera , Massimo Capone

The exchange interaction between the conduction electrons and magnetic moments at magnetic interface leads to mutual conversion between electron spin current and magnon current. We introduce a concept of spin convertance which…

Mesoscale and Nanoscale Physics · Physics 2013-02-08 Steven S. -L. Zhang , Shufeng Zhang

The possibility of electrically exciting and detecting magnon currents in magnetic insulators has opened exciting perspectives for transporting spin information in electronic devices. However, the role of the magnetic field and the nonlocal…

Mesoscale and Nanoscale Physics · Physics 2022-01-28 Jialiang Gao , Charles-Henri Lambert , Richard Schlitz , Manfred Fiebig , Pietro Gambardella , Saül Vélez

It has recently been predicted that certain magnetic materials contain mobile magnetic charges or `monopoles'. Here we address the question of whether these magnetic charges and their associated currents (`magnetricity') can be directly…

Other Condensed Matter · Physics 2010-03-12 S. T. Bramwell , S. R. Giblin , S. Calder , R. Aldus , D. Prabhakaran , T. Fennell

Thermal conductivity, a fundamental parameter characterizing thermal transport in solids, is typically determined by electron and phonon transport. Although other transport properties including electrical conductivity and thermoelectric…

This review provides a comprehensive study of the nonlinear transport properties of magnons, which are electrically emitted or absorbed inside extended YIG films by spin transfer effects via a YIG$\vert$Pt interface. Our purpose is to…

We investigate the spin injection and the spin transport in paramagnetic insulators described by simple Heisenberg interactions using auxiliary particle methods. Some of these methods allow access to both paramagnetic states above magnetic…

Strongly Correlated Electrons · Physics 2016-02-23 Satoshi Okamoto

Exploring novel strategies to manipulate the order parameter of magnetic materials by electrical means is of great importance, not only for advancing our understanding of fundamental magnetism, but also for unlocking potential practical…

Applied Physics · Physics 2024-03-04 L. Chen , Y. Sun , S. Mankovsky , T. N. G. Meier , M. Kronseder , H. Ebert , D. Weiss , C. H. Back

Using a pure electric current to control kagome noncollinear antiferromagnets is promising in information storage and processing, but a full description is still lacking, in particular, on intrinsic (i.e., no external magnetic fields or…

Mesoscale and Nanoscale Physics · Physics 2024-04-01 Yiyuan Chen , Z. Z. Du , Hai-Zhou Lu , X. C. Xie

Magnons in ferromagnets behave as a viscous fluid over a length scale, the momentum-relaxation length, below which momentum-conserving scattering processes dominate. We show theoretically that in this hydrodynamic regime viscous effects…

Mesoscale and Nanoscale Physics · Physics 2019-09-25 Camilo Ulloa , A. Tomadin , J. Shan , M. Polini , B. J. van Wees , R. A. Duine

A method for deterministic control of the magnetic order parameter using an electrical stimulus is highly desired for the new generation of spintronic and magnetoelectronic devices. Much effort has been focused on magnetic domain-wall…

We develop a non-equilibrium Green's function formalism to study magnonic spin transport through a strongly anisotropic ferromagnetic insulator contacted by metallic leads. We model the ferromagnetic insulator as a finite-sized…

Mesoscale and Nanoscale Physics · Physics 2021-11-17 W. P. Sterk , Andreas Rückriegel , H. Y. Yuan , Babak Zare Rameshti , R. A. Duine

We report on a new electromagnetic phenomenon that emerges in Mott insulators, i.e., materials that do not conduct electricity because of strong electronic Coulomb repulsion. The phenomenon manifests as antiferromagnetic ordering due to…

Strongly Correlated Electrons · Physics 2015-05-13 K. A. Al-Hassanieh , C. D. Batista , G. Ortiz , L. N. Bulaevskii

In magnets with non-collinear spin configuration the expectation value of the conventionally defined spin current operator contains a contribution which renormalizes an external magnetic field and hence affects only the precessional motion…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 Andreas Rückriegel , Peter Kopietz

Orbitronics explores the control and manipulation of electronic orbital angular momentum in solid-state systems, opening new pathways for information processing and storage. One significant advantage of orbitronics over spintronics is that…

Mesoscale and Nanoscale Physics · Physics 2025-10-07 Tarik P. Cysne , Luis M. Canonico , Marcio Costa , R. B. Muniz , Tatiana G. Rappoport
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