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Electrical manipulation of antiferromagnets with specific symmetries offers the prospect of creating novel, antiferromagnetic spintronic devices. Such devices aim to make use of the insensitivity to external magnetic fields and the…

Materials Science · Physics 2018-07-04 Markus Meinert , Dominik Graulich , Tristan Matalla-Wagner

Intensive studies have been made on antiferromagnets as candidate materials for next generation memory bits due to their ultrafast dynamics reaching picosecond time scales. Recent demonstrations of electrical bidirectional switching of…

Non-collinear antiferromagnetic Weyl semimetals, combining the advantages of a zero stray field and ultrafast spin dynamics as well as a large anomalous Hall effect and the chiral anomaly of Weyl fermions, have attracted extensive…

Mesoscale and Nanoscale Physics · Physics 2022-08-15 Yongcheng Deng , Xionghua Liu , Yiyuan Chen , Zongzheng Du , Nai Jiang , Chao Shen , Enze Zhang , Houzhi Zheng , Hai-Zhou Lu , Kaiyou Wang

Due to its proximity to room temperature and demonstrated high degree of temperature tunability, the metamagnetic ordering transition in FeRh is attractive for novel high-performance computing devices seeking to use magnetism as the state…

The manipulation of antiferromagnetic order by means of spin-orbit torques opens unprecedented opportunities to exploit the dynamics of antiferromagnets in spintronic devices. In this work, we investigate the current-induced switching of…

We investigate the interplay between the thermodynamic properties and spin-dependent transport in a mesoscopic device based on a magnetic multilayer (F/f/F), in which two strongly ferromagnetic layers (F) are exchange-coupled through a…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 A. M. Kadigrobov , S. Andersson , D. Radic , R. I. Shekhter , M. Jonson , V. Korenivski

In recent years, the field of antiferromagnetic spintronics has been substantially advanced. Electric-field control is a promising approach to achieving ultra-low power spintronic devices via suppressing Joule heating. In this article,…

Mesoscale and Nanoscale Physics · Physics 2021-08-11 Han Yan , Zexin Feng , Peixin Qin , Xiaorong Zhou , Huixin Guo , Xiaoning Wang , Hongyu Chen , Xin Zhang , Haojiang Wu , Chengbao Jiang , Zhiqi Liu

The manipulation of antiferromagnetic (AFM) order is a central theme in modern spintronics. In this work, we achieve reliable switching of the chiral AFM state in the Weyl antiferromagnet Mn$_3$Sn using a heat pulse combined with a very…

Materials Science · Physics 2026-05-25 Xiaokang Li , Jing Zhang , Xiaodong Guo , Zengwei Zhu

Louis Neel pointed out in his Nobel lecture that while abundant and interesting from a theoretical viewpoint, antiferromagnets did not seem to have any applications. Indeed, the alternating directions of magnetic moments on individual atoms…

We measure the temperature, magnetic-field, and current dependence for the switching of nanomagnets by a spin-polarized current. Depending on current bias, switching can occur between either two static magnetic states or a static state and…

One of the most important challenges in antiferromagnetic spintronics is the read-out of the N\'eel vector state. High current densities up to 10$^8$ Acm$^{-2}$ used in the electrical switching experiments cause notorious difficulty in…

Materials Science · Physics 2022-03-29 M. J. Grzybowski , C. F. Schippers , M. E. Bal , K. Rubi , U. Zeitler , M. Foltyn , B. Koopmans , H. J. M. Swagten

A prerequisite to using the net spin polarization generated by a source-drain bias in three-dimensional topological insulators for spintronic applications, is understanding how such a bias alters the transport properties of these materials.…

Mesoscale and Nanoscale Physics · Physics 2025-05-19 Sofie Kölling , Daan H. Wielens , İnanç Adagideli , Alexander Brinkman

We investigate the current-induced switching of the Neel order in NiO(001)/Pt heterostructures,which is manifested electrically via the spin Hall magnetoresistance. Significant reversible changes in the longitudinal and transverse…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 X. Z. Chen , R. Zarzuela , J. Zhang , C. Song , X. F. Zhou , G. Y. Shi , F. Li , H. A. Zhou , W. J. Jiang , F. Pan , Y. Tserkovnyak

The domain wall depinning from a notch in a Permalloy nanostrip on top of a ${\rm SiO_2/Si}$ substrate is studied theoretically under application of static magnetic fields and the injection of short current pulses. The influence of Joule…

Mesoscale and Nanoscale Physics · Physics 2016-07-15 Simone Moretti , Victor Raposo , Eduardo Martinez

Understanding quantitatively the heating dynamics in magnetic tunnel junctions (MTJ) submitted to current pulses is very important in the context of spin-transfer-torque magnetic random access memory development. Here we provide a method to…

Materials Science · Physics 2016-09-28 A. Chavent , C. Ducruet , C. Portemont , L. Vila , J. Alvarez-Hérault , R. Sousa , I. L. Prejbeanu , B. Dieny

We unravel the origin of current-induced magnetic switching of insulating antiferromagnet/heavy metal systems. We utilize concurrent transport and magneto-optical measurements to image the switching of antiferromagnetic domains in specially…

Materials Science · Physics 2020-12-15 H. Meer , F. Schreiber , C. Schmitt , R. Ramos , E. Saitoh , O. Gomonay , J. Sinova , L. Baldrati , M. Kläui

We determine the temperature profile in magnetic nanocontacts submitted to the very large current densities that are commonly used for spin-torque oscillator behavior. Experimentally, the quadratic current-induced increase of the resistance…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Sébastien Petit-Watelot , Ruben Miguel Otxoa , Mauricio Manfrini , Wim Van Roy , Liesbet Lagae , Joo-Von Kim , Thibaut Devolder

Nonvolatile spintronics-based devices that utilize electron spin both to store and transport information face a great challenge when scaled to nano dimensions due to loss of thermal stability and stray field induced disturbance in closely…

Mesoscale and Nanoscale Physics · Physics 2023-09-28 Kutay Akin , Hasan Piskin , Ege Selvi , Emre Demircanli , Sevval Ari , Mohammad Hassan Ramezan zadeh , Bayram Kocaman , Ozhan Ozatay

We consider the electrical current through a magnetic point contact in the limit of a strong inelastic scattering of electrons. In this limit local Joule heating of the contact region plays a decisive role in determining the transport…

Materials Science · Physics 2009-11-11 A. Kadigrobov , S. I. Kulinich , R. I. Shekhter , M. Jonson , V. Korenivski

Antiferromagnetic materials have a vanishingly small net magnetization, which generates weak dipolar fields and makes them robust against external magnetic perturbation and rapid magnetization dynamics, as dictated by the geometric mean of…

Materials Science · Physics 2024-11-19 Ankit Shukla , Siyuan Qian , Shaloo Rakheja
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