Magnetic Proximity Effect and Anomalous Hall Effect in Pt/Y3Fe5−xAlxO12 Heterostructures

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
Xiao Liang ◽  
Guoyi Shi ◽  
Longjiang Deng ◽  
Fei Huang ◽  
Jun Qin ◽  
...  
Keyword(s):  
Hall Effect ◽  
Proximity Effect ◽  
Anomalous Hall Effect ◽  
Magnetic Proximity Effect

Controlling the magnetic proximity effect and anomalous Hall effect in CoFe2O4/Pt by ionic gating

2020 ◽  
Vol 13 (6) ◽  
pp. 063004
Author(s):  
Shoto Nodo ◽  
Shimpei Ono ◽  
Takashi Yanase ◽  
Toshihiro Shimada ◽  
Taro Nagahama
Keyword(s):  
Hall Effect ◽  
Proximity Effect ◽  
Anomalous Hall Effect ◽  
Magnetic Proximity Effect

Magnetic Proximity Effect Free Spin Hall Magnetoresistance in YIG∖Pd

SPIN ◽  
2017 ◽  
Vol 07 (01) ◽  
pp. 1740005 ◽  
Author(s):  
O. d’Allivy Kelly ◽  
M. Collet ◽  
E. Jacquet ◽  
R. Mattana ◽  
F. Petroff ◽  
...  
Keyword(s):  
Hall Effect ◽  
Angular Dependence ◽  
Proximity Effect ◽  
Magnetic Circular Dichroism ◽  
Large Signal ◽  
Magnetization Direction ◽  
Spin Pumping ◽  
X Ray ◽  
Inverse Spin Hall Effect ◽  
Magnetic Proximity Effect

Magnetic Proximity Effect (MPE) at the interface of Y3Fe5O[Formula: see text] (YIG)[Formula: see text]Pd is investigated using X-ray Magnetic Circular Dichroism (XMCD) at the Pd-edges. No evidence of MPE is found even for Pd film thicknesses down to 0.5[Formula: see text]nm. The same bilayers have been thereafter used for inverse spin Hall Effect (ISHE) measurements using the spin-pumping technique. A large signal can be observed at the ferromagnetic resonance. The angular dependence of the Pd dc resistance has been measured as a function of the YIG magnetization direction. It shows the expected dependences for the spin Hall magnetoresistance (SMR). Our methodology allows to state that ISHE and SMR are intrinsic phenomena whose underlying physics is uncorrelated to MPE.

scholarly journals Interface-induced sign reversal of the anomalous Hall effect in magnetic topological insulator heterostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Fei Wang ◽  
Xuepeng Wang ◽  
Yi-Fan Zhao ◽  
Di Xiao ◽  
Ling-Jie Zhou ◽  
...  
Keyword(s):  
Hall Effect ◽  
Electric Fields ◽  
First Principles ◽  
Berry Phase ◽  
Condensed Matter ◽  
Anomalous Hall Effect ◽  
First Principles Calculations ◽  
Sign Reversal ◽  
Berry Curvature ◽  
Topological Materials

AbstractThe Berry phase picture provides important insights into the electronic properties of condensed matter systems. The intrinsic anomalous Hall (AH) effect can be understood as the consequence of non-zero Berry curvature in momentum space. Here, we fabricate TI/magnetic TI heterostructures and find that the sign of the AH effect in the magnetic TI layer can be changed from being positive to negative with increasing the thickness of the top TI layer. Our first-principles calculations show that the built-in electric fields at the TI/magnetic TI interface influence the band structure of the magnetic TI layer, and thus lead to a reconstruction of the Berry curvature in the heterostructure samples. Based on the interface-induced AH effect with a negative sign in TI/V-doped TI bilayer structures, we create an artificial “topological Hall effect”-like feature in the Hall trace of the V-doped TI/TI/Cr-doped TI sandwich heterostructures. Our study provides a new route to create the Berry curvature change in magnetic topological materials that may lead to potential technological applications.

scholarly journals 2D‐Berry‐Curvature‐Driven Large Anomalous Hall Effect in Layered Topological Nodal‐Line MnAlGe

2021 ◽  
pp. 2006301
Author(s):  
Satya N. Guin ◽  
Qiunan Xu ◽  
Nitesh Kumar ◽  
Hsiang‐Hsi Kung ◽  
Sydney Dufresne ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Nodal Line ◽  
Berry Curvature ◽  
Curvature Driven

scholarly journals Anomalous Hall effect in a magnetically extended topological insulator heterostructure

2020 ◽  
Vol 4 (9) ◽  
Author(s):  
Nan Liu ◽  
Xuefan Niu ◽  
Yuxin Liu ◽  
Qinghua Zhang ◽  
Lin Gu ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulator ◽  
Anomalous Hall Effect

Multiple Weyl fermions and tunable quantum anomalous Hall effect in 2D half-metal with huge spin-related energy gap

2021 ◽  
Vol 551 ◽  
pp. 149390
Author(s):  
Weizhen Meng ◽  
Xiaoming Zhang ◽  
Weiwang Yu ◽  
Ying Liu ◽  
Lu Tian ◽  
...  
Keyword(s):  
Hall Effect ◽  
Energy Gap ◽  
Anomalous Hall Effect ◽  
Half Metal ◽  
Related Energy ◽  
Quantum Anomalous Hall Effect ◽  
Weyl Fermions
Sign in / Sign up

Export Citation Format

Share Document