English
Related papers

Related papers: Angular dependent magnetization reversal in exchan…

200 papers

More than 30 years ago, Malozemoff (Phys. Rev. B 35, 3679 (1987)) hypothesized that exchange interaction at the interface between a ferromagnet (F) and an antiferromagnet (AF) can act as an effective random field, which can profoundly…

Materials Science · Physics 2020-04-22 Guanxiong Chen , Dylan Collette , Sergei Urazhdin

Spin spirals form inside the magnetic layers of antiferromagnetic and noncollinearly-coupled magnetic multilayers in the presence of an external magnetic field. This spin structure can be modeled to extract the direct exchange stiffness of…

Mesoscale and Nanoscale Physics · Physics 2024-09-04 Elliot Wadge , Afan Terko , George Lertzman-Lepofsky , Paul Omelchenko , Bret Heinrich , Manuel Rojas , Erol Girt

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

Carrier generation by impact ionization and subsequent recombination under the influence of magnetic field has been studied for InSb slab. A simple analytic expression for threshold electric field as a function of magnetic field is…

Materials Science · Physics 2012-06-07 Jinki Hong , Taeyueb Kim , Sungjung Joo , Jin Dong Song , Suk Hee Han , Kyung-Ho Shin , Joonyeon Chang

We study magnetization reversal using various r.f. magnetic pulses. We show numerically that switching is possible with simple sinusoidal pulses; however the optimum approach is to use a frequency-swept (chirped) r.f. magnetic pulse, the…

Materials Science · Physics 2015-06-25 K. Rivkin , J. B. Ketterson

The influence of second-order magneto-optic effects on Kerr effect magnetometry of epitaxial exchange coupled FeMn/NiFe-bilayers is investigated. A procedure for separation of the first- and second-order contributions is presented. The full…

Condensed Matter · Physics 2009-11-10 T. Mewes , H. Nembach , M. Rickart , B. Hillebrands

Pinning magnetization in a ferromagnetic thin film is commonly realized through exchange biasing with an adjacent antiferromagnet. Field-cooling from above the N\'{e}el temperature is a reliable yet slow re-pinning method in exchange-biased…

Mesoscale and Nanoscale Physics · Physics 2026-05-25 Floris J. F. van Riel , Andries B. M. Droste , Bert Koopmans , Diana C. Leitao

We propose a mechanism to explain the phenomenon of positive exchange bias on magnetic bilayered systems. The mechanism is based on the formation of a domain wall at a disordered interface during field cooling (FC) which induces a symmetry…

Mesoscale and Nanoscale Physics · Physics 2013-07-26 Orlando V. Billoni , Francisco A. Tamarit , Sergio A. Cannas

It was experimentally observed that both magnetic anisotropy and spin-orbit interaction strength change when the magnetization of the nanomagnet is reversed. This indicates a variation in spin-orbit interaction strength depending on whether…

Mesoscale and Nanoscale Physics · Physics 2024-07-10 Vadym Zayets

Artificial ferromagnetic nanofiber networks with new electronic, magnetic, mechanical and other physical properties can be prepared by electrospinning and may be regarded as the base of bio-inspired cognitive computing units. For this…

Materials Science · Physics 2018-10-17 Tomasz Blachowicz , Andrea Ehrmann

Some of the main experimental observations related to the occurrence of exchange bias in magnetic systems are reviewed, focusing the attention on the peculiar phenomenology associated to nanoparticles with core/shell structure as compared…

Materials Science · Physics 2008-06-20 Oscar Iglesias , Amilcar Labarta , Xavier Batlle

Ferri-/ferromagnetic exchange coupled composites are promising candidates for bit patterned media because of the ability to control the magnetic properties of the ferrimagnet by its composition. A micromagnetic model for the bilayer system…

We study in-plane magnetic tunnel junctions with additional perpendicular polarizer for subnanosecond-current-induced switching memories. The spin-transfer-torque switching dynamics was studied as a function of the cell aspect ratio both…

We examine the anisotropic properties of the exchange stiffness constant, $\mathcal{A}$, for rare-earth permanent magnet, Nd$_2$Fe$_{14}$B, by connecting analyses with two different scales of length, i.e., Monte Carlo (MC) method with an…

Materials Science · Physics 2018-08-22 Yuta Toga , Masamichi Nishino , Seiji Miyashita , Takashi Miyake , Akimasa Sakuma

In ferromagnet/heavy metal bilayers, an in-plane current gives rise to spin-orbit spin transfer torque which is usually decomposed into field-like and damping-like torques. For two-dimensional free-electron and tight-binding models with…

Materials Science · Physics 2015-06-22 Ki-Seung Lee , Dongwook Go , Aurelien Manchon , Paul M. Haney , M. D. Stiles , Hyun-Woo Lee , Kyung-Jin Lee

Exchange-coupled structures consisting of ferromagnetic and ferrimagnetic layers become technologically more and more important. We show experimentally the occurrence of completely reversible, hysteresis-free minor loops of [Co(0.2…

Magnetization reversal in exchange-spring magnet films has been investigated by a First Order Reversal Curve (FORC) technique and vector magnetometry. In Fe/epitaxial-SmCo films, the reversal proceeds by a reversible rotation of the Fe soft…

Materials Science · Physics 2007-05-23 Joseph E. Davies , Olav Hellwig , Eric E. Fullerton , J. S. Jiang , S. D. Bader , G. T. Zimanyi , Kai Liu

We have performed magnetic measurements like temperature (T), cooling field (HFC) dependence of exchange bias (EB) and training effect to investigate the magnetic nature of the interface of the Fe/Ir20Mn80 systems. Thin film bilayer samples…

We report the magnetotransport properties of ferromagnet (FM)/antiferromagnet (AFM) Fe$_2$CrSi/Ru$_2$MnGe epitaxial bilayers using current-in-plane configurations. Above the critical thickness of the Ru$_2$MnGe layer to induce exchange…

Materials Science · Physics 2017-04-13 T. Hajiri , M. Matsushita , Y. Z. Ni , H. Asano

We report magnetization changes generated by an electric field in ferromagnetic Ga$_{1-x}$Mn$_x$N grown by molecular beam epitaxy. Two classes of phenomena have been revealed. First, over a wide range of magnetic fields, the magnetoelectric…