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High operation frequency and large absorbing bandwidth are often required for electromagnetic noise suppression [1]. Magnetic materials with strong anisotropy field (shape anisotropy or magnetocrystalline anisotropy), for instance FeCo nano plates [2], are needed to increase the operation frequency into the gigahertz (GHz) zone to solve the stringent problem of electromagnetic interference among the...
With the fast development of information storage, exploiting new concepts for dense, fast, and non-volatile random access memory with reduced energy consumption is a significant and challenging task. To realize this goal, electric-field control of magnetism is crucial. In this regard, multiferroic materials are important and have attracted much attention due to their interesting new physics and potentials...
Electric-Field-Control of magnetism using BiFeO3-based heterostructures is attracting a great amount of research interest. BiFeO3 (BFO) has outstanding ferroelectric properties and G-type antiferromagnetic ordering in the bulk. BFO has also a relatively high ferroelectric Curie temperature (TC∼1100K), high antiferromagnetic Neel temperature (TN∼640K), high remnant polarization (2Pr∼110μC/cm2), and...
The interface magnetic phenomenon, which forms the backbone of modern information technology, is of great interest for several decades. When two or more dissimilar materials with different long-range magnetic orderings and/or functionalities are combined together, it may give rise to new interfacial properties, such as the proximity effect [1]. The exchange coupling between two FM layers, as well...
Magnetic materials with perpendicular magnetic anisotropy have received much attention due to its advantages in the application of spintronics devices, such as high integration density and low damping constant [1-2]. For the aim of low-power operation, electrical manipulation of the magnetism is in urgent need, and much progress has been achieved such as the electrical switching of FeCo and CoFeB...
Perpendicular magnetic anisotropy (PMA) was achieved in annealed Co2FeAl0.5Si0.5 (CFAS)/MgO-based multilayers with good thermal stability up to 400°C and a large anisotropy energy density Ku over 2.0×105J/m3. The thickness of the full-Heusler CFAS film to maintain PMA is up to 4.8nm in which the co-existence of disordered A2, ordered B2 and fully ordered L21 structures is observed. X-ray photoelectron...
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