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Magnetoelectric coupling is vital for exploring fundamental science and driving the development of high-density memory and energy-efficient spintronic devices. Altermagnets, which merge the benefits of ferromagnets and antiferromagnets,…

Materials Science · Physics 2026-03-03 Pengqiang Dong , Hanbo Sun , Chao Wu , Ping Li

Exchange bias (EB) phenomena have been observed in Nd2/3Ca1/3MnO3 colossal magnetoresistance perovskite below the Curie temperature $T_{C}$ = 70 K and attributed to an antiferromagnetic (AFM) - ferromagnetic (FM) spontaneous phase…

Mesoscale and Nanoscale Physics · Physics 2014-06-18 Elena Fertman , Sergiy Dolya , Vladimir Desnenko , Liudmia A. Pozhar , Marcela Kajnakova , Alexander Feher

Antiferromagnets (AFMs) with zero net magnetization are proposed as active elements in future spintronic devices. Depending on the critical thickness of the AFM thin films and the measurement temperature, bimetallic Mn-based alloys and…

We present a study of the control of electric field induced strain on the magnetic and electrical transport properties in a magneto-elastically coupled artificial multiferroic Fe3O4/BaTiO3 heterostructure. In this Fe3O4/BaTiO3…

Antiferromagnetic spintronic devices have the potential to outperform conventional ferromagnetic devices due to their ultrafast dynamics and high data density. A challenge in designing these devices is the control and detection of the…

Materials Science · Physics 2021-01-20 Sarah Jenkins , Roy W. Chantrell , Richard F. L. Evans

The exchange bias (EB) effect has been observed in magnetic Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles. The influence of magnetic field cooling on the exchange bias effect has also been investigated. The magnitude of the…

Mesoscale and Nanoscale Physics · Physics 2015-07-28 M. A. Basith , F. A. Khan , Bashir Ahmmad , Shigeru Kubota , Fumihiko Hirose , D. -T. Ngo , Q. -H. Tran , K. Mølhave

Spintronic devices based on antiferromagnetic (AFM) materials hold the promise of fast switching speeds and robustness against magnetic fields. Different device concepts have been predicted and experimentally demonstrated, such as…

Recent results in electric-field control of magnetism have paved the way for the design of alternative magnetic and spintronic devices with enhanced functionalities and low power consumption. Among the diversity of reported magnetoelectric…

The materials exhibiting exchange bias (EB) have been extensively investigated mainly due to their great technological applications in magnetic sensors, but its underlying mechanism remains elusive. Here we report the novel coexistence of…

Materials Science · Physics 2022-07-12 Xiaoyan Yang , Yi Qiu , Jie Su , Yalei Huang , Jincang Zhang , Xiao Liang , Guixin Cao

Reversible control of magnetization by electric fields without assistance from a subsidiary magnetic field or electric current could help reduce the power consumption in spintronic devices. When increasing temperature above room…

The exchange bias at ferromagnetic/antiferromagnetic interfaces strongly depends upon the state of antiferromagnetic (AF) layer which, due to strong magnetoelastic coupling, is sensitive to mechanical stresses. In the present paper we…

Materials Science · Physics 2014-05-13 Olena Gomonay , Igor Lukyanchuk

Amorphous TbFeCo thin films sputter deposited at room temperature on thermally oxidized Si substrate are found to exhibit strong perpendicular magnetic anisotropy (PMA). Atom probe tomography (APT), scanning transmission electron microscopy…

Materials Science · Physics 2016-01-20 Xiaopu Li , Chung T. Ma , Jiwei Lu , Arun Devaraj , Steven R. Spurgeon , Ryan B. Comes , S. Joseph Poon

We study the combined effects of spin transfer torque, voltage modulation of interlayer exchange coupling and magnetic anisotropy on the switching behavior of perpendicular magnetic tunnel junctions (p-MTJs). In asymmetric p-MTJs, a…

Materials Science · Physics 2020-02-19 D. J. P. de Sousa , P. M. Haney , D. L. Zhang , J. P. Wang , Tony Low

Electric field-induced magnetization switching in multiferroics is intriguing for both fundamental studies and potential technological applications. Here, we review the recent developments on electric field-induced magnetization switching…

Mesoscale and Nanoscale Physics · Physics 2017-06-12 Kuntal Roy

Herein, we report the appearance of a large exchange bias (EB) effect in a moderate cooling field (cooling field, H$_{FC}$ = 1 kOe) for the 314-Sr3YCo4O10.5 material. The exchange bias has started to appear near room temperature and reaches…

Strongly Correlated Electrons · Physics 2018-02-15 Sourav Marik , Prachi Mohanty , Deepak Singh , R P Singh

Exchange anisotropy in ferromagnet/antiferromagnet (FM/AF) films is usually introduced along the cooling field or FM magnetization direction. Here we investigate the dependence of the exchange anisotropy, loop bifurcation, and reversal…

Materials Science · Physics 2007-05-23 Justin Olamit , Zhi-Pan Li , Ivan K. Schuller , Kai Liu

We demonstrate reproducible voltage induced non-volatile switching of the magnetization in an epitaxial thin Fe81Ga19 film. Switching is induced at room temperature and without the aid of an external magnetic field. This is achieved by the…

Modern magnetic thin film devices owe their success in large part to effects emerging from interlayer coupling and exchange interaction at interfaces. A prominent example is exchange bias (EB), a magnetic coupling phenomenon found in…

Materials Science · Physics 2009-12-15 Sebastian Brück , Patrick Audehm , Gisela Schütz , Eberhard Goering

Exchange bias effect plays a crucial role in modern magnetic memory technology. Recently, van der Waals magnetic materials have emerged and shown potential in spintronic devices at atomic scale. Owing to their tunable physical properties…

The exchange bias effect is commonly used to shift the coercive field of a ferromagnet. This technique is crucial for the use of magnetic tunnel junctions as logic or memory devices. Therefore, an independent switching of the two…

Materials Science · Physics 2015-05-13 Niclas Teichert , Alexander Boehnke , Anna Behler , Bruno Weise , Anja Waske , Andreas Hütten