Quantitative investigation of magnetic domains with in-plane and out-of-plane easy axes in GaMnAs films by Hall effect

2013 ◽  
Vol 113 (17) ◽  
pp. 17C706 ◽  
Author(s):  
Sangyeop Lee ◽  
Hakjoon Lee ◽  
Taehee Yoo ◽  
Sanghoon Lee ◽  
X. Liu ◽  
...  
SPIN ◽  
2017 ◽  
Vol 07 (01) ◽  
pp. 1740004
Author(s):  
Chengkun Song ◽  
Chendong Jin ◽  
Jianbo Wang ◽  
Qingfang Liu

Current-induced domain wall motion (CIDWM) in perpendicularly magnetized materials exhibits large potential in spintronic device applications. The Dzyaloshinskii domain walls (DWs) are nucleated in ultrathin ferromagnetic/heavy-metal bilayers with high perpendicular magnetocrystalline anisotropy (PMA) in the presence of interfacial Dzyaloshinskii–Moriya interaction (DMI). Here, we investigate the effect of magnetic fields on Dzyaloshinskii DWs driven by spin Hall effect (SHE) by means of micromagnetic simulations. We find that magnetic fields can modify the dynamics of Dzyaloshinskii DW. When applying out-of-plane magnetic fields, the velocity of Dzyaloshinskii DWs increases when the field-driven and current-driven DW motion are in same direction, while it decreases with opposite direction. In the case of in-plane longitudinal magnetic fields, Dzyaloshinskii DW velocity increases when the direction of the magnetic field and Dzyaloshinskii DW propagation direction are same, and it decreases when applying opposite in-plane magnetic fields. These manifestations may offer a new method for manipulating Dzyaloshinskii DWs and promise applications in DW-based nanodevices.


Nanoscale ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 5533-5542
Author(s):  
Baozeng Zhou

Coexistence of Rashba-type spin splitting (in-plane spin direction) and band splitting at the K/K′ valleys (out-of-plane spin direction) makes the FRS AgBiP2Te6 monolayer a promising candidate for 2D spin FET and spin/valley Hall effect devices.


Nano Letters ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 5633-5639 ◽  
Author(s):  
Kumar Sourav Das ◽  
Jing Liu ◽  
Bart J. van Wees ◽  
Ivan J. Vera-Marun

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 675
Author(s):  
Gernot Heine ◽  
Wolfgang Lang ◽  
Roman Rössler ◽  
Johannes D. Pedarnig

The resistivity and the Hall effect in the copper-oxide high-temperature superconductor YBa2Cu3O7-δ (YBCO) are remarkably anisotropic. Using a thin film of YBCO grown on an off-axis cut SrTiO3 substrate allows one to investigate these anisotropic transport properties in a planar and well-defined sample geometry employing a homogeneous current density. In the normal state, the Hall voltage probed parallel to the copper-oxide layers is positive and strongly temperature dependent, whereas the out-of-plane Hall voltage is negative and almost temperature independent. The results confirm previous measurements on single crystals by an entirely different measurement method and demonstrate that vicinal thin films might be also useful for investigations of other layered nanomaterials.


2014 ◽  
Vol 3 ◽  
pp. 1149-1154 ◽  
Author(s):  
Franck Tankoua ◽  
Jérôme Crépin ◽  
Philippe Thibaux ◽  
Steven Cooreman ◽  
Anne-Françoise Gourgues-Lorenzon

2017 ◽  
Vol 897 ◽  
pp. 111-114 ◽  
Author(s):  
Martin Hauck ◽  
Julietta Weisse ◽  
Johannes Lehmeyer ◽  
Gregor Pobegen ◽  
Heiko B. Weber ◽  
...  

Drain current DLTS (ID-DLTS) and Hall effect measurements were carried out on two types of 4H-SiC n-MOSFETs, one with a post oxidation annealing (POA) in NO and one in O2 atmosphere. Hall effect measurements show a reduction of Dit by POA in NO compared to POA in O2 and, as a consequence, a higher inversion charge carrier density, while the Hall mobility is only weakly affected by the introduction of nitrogen during POA. Based on ID-DLTS we provide a method for a quantitative and selective investigation of near interface traps (NITs) in the oxide. It is shown that POA in NO strongly reduces the density of NITs.


2013 ◽  
Vol 378 ◽  
pp. 337-341 ◽  
Author(s):  
Sangyeop Lee ◽  
Hakjoon Lee ◽  
Taehee Yoo ◽  
Sanghoon Lee ◽  
X. Liu ◽  
...  

2014 ◽  
Vol 115 (5) ◽  
pp. 053709 ◽  
Author(s):  
Netanel Naftalis ◽  
Noam Haham ◽  
Jason Hoffman ◽  
Matthew S. J. Marshall ◽  
C. H. Ahn ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Samuel Flewett ◽  
Thiago J. A. Mori ◽  
Alexandra Ovalle ◽  
Simón Oyarzún ◽  
Antonio Ibáñez ◽  
...  

Abstract With the continuing interest in new magnetic materials for sensor devices and data storage applications, the community needs reliable and sensitive tools for the characterization of such materials. Soft X-rays tuned to elemental absorption edges are a depth and element sensitive probe of magnetic structure at the nanoscale, and scattering measurements have the potential to provide 3D magnetic structural information of the material. In this work we develop a methodology in transmission geometry that allows one to probe the spatial distribution of the magnetization along the different layers of magnetic heterostructures. We study the in-plane/out-of-plane transition of magnetic domains in multilayer thin film systems consisting of two layers of NiFe top and bottom, and a 50 repeat Co/Pd multilayer in the centre. The experimental data are analysed by simulating scattering data starting from micromagnetic simulations, and we find that the out of plane domains of the Co/Pd multilayer intrude into the NiFe layers to a greater extent than would be expected from micromagnetic simulations performed using the standard magnetically isotropic input parameters for the NiFe layers.


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