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We studied the dynamics of magnetization through an investigation of the magnetoimpedance effect in CoFeB/(Ta, Ag, Cu) multilayered thin films grown by magnetron sputtering. Impedance measurements were analyzed in terms of the mechanisms…

Materials Science · Physics 2015-05-28 M. S. Marques , T. Mori , L. F. Schelp , C. Chesman , F. Bohn , M. A. Correa

For antiferromagnetically coupled Fe/Cr multilayers the low field contribution to the resistivity, which is caused by the domain walls, is strongly enhanced at low temperatures. The low temperature resistivity varies according to a power…

Materials Science · Physics 2009-11-10 F. G. Aliev , R. Schad , A. Volodin , K. Temst , C. Van Haesendonck , Y. Bruynseraede , I. Vavra , V. K. Dugaev , R. Villar

We present a systematic study of higher-order exchange interactions beyond the pair-wise Heisenberg exchange in transition-metal trilayers based on density functional theory calculations. We show that these terms can play an important role…

Materials Science · Physics 2021-07-21 Mara Gutzeit , Soumyajyoti Haldar , Sebastian Meyer , Stefan Heinze

Controlling the magnetic ground states at the nanoscale is a long-standing basic research problem and an important issue in magnetic storage technologies. Here, we designed a nanostructured material that exhibits very unusual hysteresis…

The current-driven domain wall motion along two exchange-coupled ferromagnetic layers with perpendicular anisotropy is studied by means of micromagnetic simulations and compared to the conventional case of a single ferromagnetic layer. Our…

Mesoscale and Nanoscale Physics · Physics 2018-01-24 Oscar Alejos , Victor Raposo , Luis Sanchez-Tejerina , Riccardo Tomasello , Giovanni Finocchio , Eduardo Martinez

Fast spin manipulation in magnetic heterostructures, where magnetic interactions between different materials often define the functionality of devices, is a key issue in the development of ultrafast spintronics. Although recently developed…

Materials Science · Physics 2022-03-04 X. Liu , H. C. Yuan , P. Liu , J. Y. Shi , H. L. Wang , S. H. Nie , F. Jin , Z. Zheng , X. Z. Yu , J. H. Zhao , H. B. Zhao , G. Lüpke

We use first-principles calculations based on density functional theory to study how the magnetic properties of an Fe monolayer on a W(001) surface -- exhibiting a $c(2 \times 2)$ antiferromagnetic ground state -- can be modified by an…

Materials Science · Physics 2021-09-22 Nanning Petersen , Sebastian Meyer , Stefan Heinze

Effective modulation of magnetic permeability plays a vital role in the development of high-performance inductors. Here, phase-field simulations of hard/soft ferrite composites (BaM/NiZn) clarify how exchange coupling and microstructure…

Materials Science · Physics 2025-11-26 Xinyu Xu , Wenqin Yue , Yueli Yu , Yongke Yan , Liwei D. Geng

Motivated by the recent experiment in multilayered cuprate superconductors reporting the enhancement of antiferromagnetic order below the superconducting transition temperature, we study the proximity effect of the antiferromagnetic…

Strongly Correlated Electrons · Physics 2012-05-24 Hiroyuki Yoshizumi , Takao Morinari , Takami Tohyama

Depth resolved study of structural and magnetic profiles of antiferromagnetic/ferromagnetic (AFM/FM) system upon annealing was performed in this work. We studied systems comprising of AFM IrMn and FM (Co, Fe, Co$_{70}$Fe$_{30}$) structures…

Materials Science · Physics 2024-06-17 Yu. Khaydukov , A. Dobrynin , S. Hassan , M. Ormston , K. Nikolaev , P. Bencok , R. Fan , P. Steadman , A. Csik , A. Vorobiev

On-chip cavity magnomechanics is an emerging field exploring acoustic and magnonic functionalities of various ferromagnetic materials and structures using strongly confined phonons. It is expected that such cavity magnomechanics can be…

Mesoscale and Nanoscale Physics · Physics 2023-10-25 Motoki Asano , Hiroki Matsumoto , Masamitsu Hayashi , Daiki Hatanaka

There are different mechanisms proposed to be responsible for the temperature dependence of the interlayer exchange coupling (IEC), namely a smearing out of the spacer or interface Fermi surface and excitations and interactions of spin…

Strongly Correlated Electrons · Physics 2007-05-23 S. Schwieger , J. Kienert , W. Nolting

The thermodynamics of a spin-1/2 magnetic multilayer system with antiferromagnetic interplanar couplings is studied using the Pair Approximation method. The special attention is paid to magnetocaloric properties, quantified by isothermal…

Materials Science · Physics 2014-09-09 Karol Szałowski , Tadeusz Balcerzak

Josephson junctions containing ferromagnetic (F) materials have been the subject of intense study over the past two decades. The ground state of such junctions oscillates between 0 and pi as the thickness of the ferromagnetic layer…

Superconductivity · Physics 2024-06-03 D. Korucu , Reza Loloee , Norman O. Birge

We report studies of exchange bias and coercivity in ferromagnetic Ni$_{81}$Fe$_{19}$ layers coupled to antiferromagnetic (AF) (0001), (11$\bar{2}$0), and (11$\bar{0}$2) $\alpha$-Fe$_2$O$_3$ layers. We show that AF spin configurations which…

Strongly Correlated Electrons · Physics 2009-11-10 Joonghoe Dho , C. W. Leung , Z. H. Barber , M. G. Blamire

Natural superlattice structures $\rm{(MnBi_2Te_4)(Bi_2Te_3)}$$_n$ ($n$ = 1, 2,...), in which magnetic $\rm{MnBi_2Te_4}$ layers are separated by nonmagnetic $\rm{Bi_2Te_3}$ layers, hold band topology, magnetism and reduced interlayer…

We study the effect that the electron-electron interaction has on the properties of a multilayer electron system. We consider the case corresponding to filling factor unity in each layer. We find that as a function of the sample parameters…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Luis Brey

Magneto-structural phase transition in FeRh epitaxial layers was studied optically. It is shown that the transition between the low-temperature antiferromagnetic phase and the high-temperature ferromagnetic phase is accompanied by a rather…

Materials Science · Physics 2016-08-31 V. Saidl , M. Brajer , L. Horak , H. Reichlova , K. Vyborny , M. Veis , T. Janda , F. Trojanek , I. Fina , X. Marti , T. Jungwirth , P. Nemec

Using first-principles calculations, we demonstrate that an Fe monolayer can assume very different magnetic phases on hexagonal hcp (0001) and fcc (111) surfaces of 4d- and 5d-transition metals. Due to the substrates' d-band filling, the…

Materials Science · Physics 2008-11-07 B. Hardrat , A. Al-Zubi , P. Ferriani , S. Blügel , G. Bihlmayer , S. Heinze

We study the effect of interlayer tunneling in the gauge theory describing a quasi-two-dimensional paramagnetic metal close to a second-order or weakly first-order antiferromagnetic phase boundary. In that theory, two species of fermions…

Condensed Matter · Physics 2009-10-28 S. Khlebnikov
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