518 citations · 1.2k across the 14 of their papers we have counts for
14 papers
Constraints on proximity-induced ferromagnetism in a Dirac semimetal (CdAs)/ferromagnetic semiconductor (GaMnSb) heterostructure
Arpita Mitra, Run Xiao, Wilson Yanez +8
Breaking time-reversal symmetry in a Dirac semimetal CdAs through doping with magnetic ions or by the magnetic proximity effect is expected to cause a transition to other t…
Influence of magnetic and electric fields on universal conductance fluctuations in thin films of the Dirac semi-metal Cd3As2
Run Xiao, Saurav Islam, Wilson Yanez +6
Time-reversal invariance and inversion symmetry are responsible for the topological band structure in Dirac semimetals. These symmetries can be broken by applying an external magne…
Giant spin torque efficiency in naturally oxidized polycrystalline TaAs thin films
Wilson Yanez, Yongxi Ou, Run Xiao +6
We report the measurement of efficient charge-to-spin conversion at room temperature in Weyl semimetal/ferromagnet heterostructures with both oxidized and pristine interfaces. Poly…
ZrTe2/CrTe2: an epitaxial van der Waals platform for spintronics
Yongxi Ou, Wilson Yanez, Run Xiao +12
The rapid discovery of two-dimensional (2D) van der Waals (vdW) quantum materials has led to heterostructures that integrate diverse quantum functionalities such as topological pha…
Spin and charge interconversion in Dirac semimetal thin films
Wilson Yanez, Yongxi Ou, Run Xiao +17
We report spin-to-charge and charge-to-spin conversion at room temperature in heterostructure devices that interface an archetypal Dirac semimetal, Cd3As2, with a metallic ferromag…
Spin-orbit torques acting upon a perpendicularly-magnetized Py layer
Tian-Yue Chen, Yongxi Ou, Tsung-Yu Tsai +2
We show that Py, a commonly-used soft ferromagnetic material with weak anisotropy, can become perpendicularly-magnetized while depositing on Ta buffer layer with Hf or Zr insertion…
Exceptionally high, strongly temperature dependent, spin Hall conductivity of SrRuO3
Yongxi Ou, Zhe Wang, Celesta S. Chang +7
Spin-orbit torques (SOT) in thin film heterostructures originate from strong spin-orbit interactions (SOI) that, in the bulk, generate a spin current as the result of extrinsic spi…
Strong enhancement of the spin Hall effect by spin fluctuations near the Curie point of FexPt1-x alloys
Yongxi Ou, D. C. Ralph, R. A. Buhrman
Robust spin Hall effects (SHE) have recently been observed in non-magnetic heavy metal systems with strong spin-orbit interactions. These SHE are either attributed to an intrinsic…
Fast, low-current spin-orbit torque switching of magnetic tunnel junctions through atomic modifications of the free layer interfaces
Shengjie Shi, Yongxi Ou, S. V. Aradhya +2
Future applications of spin-orbit torque will require new mechanisms to improve the efficiency for switching nanoscale magnetic tunnel junctions (MTJs), while also controlling the…
Strong perpendicular magnetic anisotropy energy density at Fe alloy/HfO2 interfaces
Yongxi Ou, D. C. Ralph, R. A. Buhrman
We report on the perpendicular magnetic anisotropy (PMA) behavior of heavy metal (HM)/ Fe alloy/MgO thin film heterostructures after an ultrathin HfO2 passivation layer is inserted…
On the origin of field-like spin-orbit torques in heavy metal-ferromagnet-oxide thin film heterostructures
Yongxi Ou, Chi-Feng Pai, Shengjie Shi +2
We report measurements of the thickness and temperature (T) dependencies of current-induced spin-orbit torques, especially the field-like (FL) component, in various heavy metal (HM…
Strong Spin Hall Effect in the Antiferromagnet PtMn
Yongxi Ou, Shengjie Shi, D. C. Ralph +1
Effectively manipulating magnetism in ferromagnet (FM) thin film nanostructures with an in-plane current has become feasible since the determination of a 'giant' spin Hall effect (…
Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
Chi-Feng Pai, Yongxi Ou, D. C. Ralph +1
We report that spin current transport across Pt-ferromagnet (FM) interfaces is strongly dependent on the type and the thickness of the FM layer and on post-deposition processing pr…
Quantum transport in topological insulator hybrid structures -- A combination of topological insulator and superconductor
YongXi Ou, Meenakshi Singh, Jian Wang
In this paper, a brief review of the history of topological insulators is given. After that,electronic transport experiments in topological insulator-superconductor hybrid structur…