中文
相关论文

相关论文: On the origin of temperature dependence of interla…

200 篇论文

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…

强关联电子 · 物理学 2007-05-23 S. Schwieger , J. Kienert , W. Nolting

We study interlayer exchange coupling (IEC) based on the many-body Coulomb interaction between conduction electrons in magnetic tunnel junction (MTJ). This mechanism complements the known IEC based on virtual electron hopping (or spin…

介观与纳米尺度物理 · 物理学 2017-04-10 O. G. Udalov , I. S. Beloborodov

The interlayer exchange coupling (IEC) of two local moment ferromagnetic layers separated by a non-magnetic spacer layer (M/N/M multilayer) is studied using the modified RKKY method along with the s-f model. The IEC exhibits oscillatory…

凝聚态物理 · 物理学 2009-11-07 S. Mathi Jaya , M. C. Valsakumar , W. Nolting

We study the combined effect of temperature and disorder in the spacer on the interlayer exchange coupling. The temperature dependence is treated on ab initio level. We employ the spin-polarized surface Green function technique within the…

介观与纳米尺度物理 · 物理学 2017-02-08 Vaclav Drchal , Josef Kudrnovsky , Patrick Bruno , Peter Dederichs , Peter Weinberger

We have found that some periods of interlayer exchange coupling (IEC) oscillations as a function of cap-layer (CL) thickness may be suppressed if the in-plane extremal spanning vectors of the cap- and ferromagnet-materials Fermi surfaces do…

介观与纳米尺度物理 · 物理学 2009-10-30 M. Zwierzycki , S. Krompiewski

For epitaxial trilayers of the magnetic rare-earth metals Gd and Tb, exchange coupled through a non-magnetic Y spacer layer, element-specific hysteresis loops were recorded by the x-ray magneto-optical Kerr effect at the rare-earth $M_5$…

材料科学 · 物理学 2009-11-13 K. M. Doebrich , M. Wietstruk , J. E. Prieto , F. Heigl , O. Krupin , K. Starke , G. Kaindl

Quantum mechanical calculations based on an extended Heisenberg model are compared with ferromagnetic resonance (FMR) experiments on prototype trilayer systems Ni_7/Cu_n/Co_2/Cu(001) in order to determine and separate for the first time…

强关联电子 · 物理学 2009-11-11 S. Schwieger , J. Kienert , K. Lenz , J. Lindner , K. Baberschke , W. Nolting

Ab initio formulations of the interlayer exchange coupling (IEC) between two, in general non-collinearly aligned magnetic slabs embedded in a non-magnetic spacer are reviewed whereby both the spacer and the magnetic slabs as well as their…

介观与纳米尺度物理 · 物理学 2007-05-23 Josef Kudrnovsky , Vaclav Drchal , Ilja Turek , Patrick Bruno , Peter Dederichs , Peter Weinberger

We propose a magnetic multilayer layout, in which the indirect exchange coupling (IEC also known as RKKY) can be switched on and off by a slight change in temperature. We demonstrate such on/off IEC switching in a Fe/Cr/FeCr-based system…

应用物理 · 物理学 2018-10-18 D. M. Polishchuk , Yu. O. Tykhonenko-Polishchuk , A. F. Kravets , V. Korenivski

We investigate a novel type of interlayer exchange coupling based on driving a strong/weak/strong ferromagnetic tri-layer through the Curie point of the weakly ferromagnetic spacer, with the exchange coupling between the strongly…

Ferromagnetic side layers sandwiching a nonmagnetic spacer as a metallic trilayer has become a pivotal platform for achieving spintronic devices. Recent experiments demonstrate that manipulating the width or the nature of conducting spacer…

材料科学 · 物理学 2024-09-09 Guan-Wei Peng , Hung-Chin Wang , Yu-Jie Zhong , Chao-Cheng Kaun , Ching-Hao Chang

This paper presents a review of the phenomenon of interlayer exchange coupling in magnetic multilayers. The emphasis is put on a pedagogical presentation of the mechanism of the phenomenon, which has been successfully explained in terms of…

介观与纳米尺度物理 · 物理学 2009-10-31 Patrick Bruno

Magnetic thin films at ferromagnetic resonance (FMR) leak angular momentum, which may be absorbed by adjacent layers. This phenomenon, known as spin pumping, is manifested by an increase in the resonance linewidth ($\Delta H$), and the…

介观与纳米尺度物理 · 物理学 2017-09-08 Masoumeh Fazlali , Martina Ahlberg , Mykola Dvornik , Johan Åkerman

We show, theoretically, that the phase of the interlayer exchange coupling (IEC) undergoes a topological change of approximately $2\pi$ as the chemical potential of the ferromagnetic (FM) lead moves across a hybridization gap (HG). The…

介观与纳米尺度物理 · 物理学 2017-09-28 A. Umerski

We study magnetic multilayers, incorporating dilute ferromagnetic spacers between strongly-ferromagnetic layers exhibiting a proximity-enhanced magnetocaloric effect. Using magnetometry and direct measurements of the adiabatic temperature…

介观与纳米尺度物理 · 物理学 2022-12-21 M. Kulyk , M. Persson , D. Polishchuk , V. Korenivski

We propose an electric-field-controlled mechanism for magnetization switching assisted solely by the interlayer-exchange coupling (IEC) between the fixed and the free magnets, which are separated by two oxide barriers sandwiching a spacer…

介观与纳米尺度物理 · 物理学 2020-10-02 Shehrin Sayed , Cheng-Hsiang Hsu , Niklas Roschewsky , See-Hun Yang , Sayeef Salahuddin

The exchange coupling of two magnetic layers via a diffuse oxide interlayer is studied with an atomistic spin model. We investigate the effect of magnetic concentration and oxide layer thickness on the effective exchange coupling strength…

材料科学 · 物理学 2015-06-22 R. F. L. Evans , Q. Coopman , S. Devos , W. J. Fan , O. Hovorka , R. W. Chantrell

Temperature dependence of the capacitance of the electrical double layer (EDL) in concentrated electrolytes/ionic liquids has been under debates for decades. To rationalise the capacitance vs temperature dependence, we run molecular…

软凝聚态物质 · 物理学 2020-05-26 Vladislav B Ivaništšev , Kathleen Kirchner , Maxim V. Fedorov

We explored the magnetic behavior of a common two-phase nanomagnetic system by Monte Carlo computer simulation of a modified Heisenberg model on a 3D complex lattice with single- and cluster-spins. The effect of exchange coupling between…

材料科学 · 物理学 2007-05-23 Y. Z. Shao , W. R. Zhong , G. M. Lin , X. D. Hu

We observe a strong thermally-controlled magnon-mediated interlayer coupling of two ferromagnetic layers via an antiferromagnetic spacer in spin-valve type trilayers. The effect manifests itself as a field-induced coherent switching of the…

介观与纳米尺度物理 · 物理学 2021-06-09 Dmytro M. Polishchuk , Yuliia O. Tykhonenko-Polishchuk , Olena V. Gomonay , Vladislav Korenivski
‹ 上一页 1 2 3 10 下一页 ›