Voltage control spin mixing conductance in TMDCs/ferromagnet heterostructures
Abstract
The efficiency of spin current generation and transmission is crucial for the performance of spin–orbit torque devices. Here, the spin mixing conductance serves as a pivotal parameter to quantify spin transport efficiency at ferromagnetic/nonmagnetic interfaces. To date, most studies have focused on optimizing the efficiency of spin current generation, while the modulation of interfacial spin transparency remains underexplored. In this work, we fabricate freestanding MoS2/NiFe heterostructures with intrinsically high spin mixing conductance surpassing conventional ferromagnetic systems by two orders of magnitude. Owing to the high tunability of the band structure in MoS2 with strain and charge doping, a 135% enhancement in the spin mixing conductance of MoS2/NiFe heterostructures has been achieved using PMN-PT ferroelectric single-crystal substrates. Our findings demonstrate a model for dynamically tuning spin transport at 2D/ferromagnetic interfaces and further provide foundational insight into the design of flexible, freestanding spintronic devices with ultralow power consumption and field-tunable functionality.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (10)
Qi Lu
State Key Laboratory of Chemical Engineering, Department of Chemical Engineering
Zeqi Lin
State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University , Xi'an 710049,
Liwen Liang
State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University , Xi'an 710049,
Jiaqiang Liu
College of Chemistry Nankai University Tianjin China
Yuxuan Jiang
National Key Laboratory of Strength and Structural Integrity, Institute of Solid Mechanics, School of Aeronautic Science and Engineering, Beihang University
Yifan Wang
Bin Peng
Agroecosystem Sustainability Center, Institute for Sustainability, Energy, and Environment, University of Illinois Urbana-Champaign
Zhongqiang Hu
State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Engineering Research Center of Spin Quantum Sensor Chips, Universities of Shaanxi Province, School of Electronic Science and Engineering, Xi'an Jiaotong University 1 , Xi'an 710049,
Zhiguang Wang
Ming Liu