Enhanced Magnetoresistance in In-Plane Monolayer MoS2 with CrO2 Electrodes

被引：0
作者：
Abhishek Kumar
Sudhanshu Choudhary
机构：
[1] National Institute of Technology,
来源：
Journal of Superconductivity and Novel Magnetism | 2018年 / 31卷
关键词：
Monolayer MoS; Half-metallic ferromagnet (HMF); Magnetoresistance (MR); Spin-injection efficiency;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Magnetoresistance of monolayer MoS2 is reported to increase when used in in-plane configuration with CrO2 half-metal ferromagnet (HMF) electrodes. Density functional theory (DFT)- and non-equilibrium Green’s function (NEGF)-based simulations show that high magnetoresistance (MR) values of ∼860% can be achieved in in-plane monolayer MoS2 with CrO2 electrodes, which is much higher than the MR value of ∼300% for nine-layer and the MR value of ∼70% for single-layer out-of-plane MoS2 reported in Dolui et al., Phys. Rev. B 90(R), 041401 (2014) past by other researchers. High spin-injection efficiency ∼100% is also obtained at high bias voltages. High MR and perfect spin filtration suggests the importance of this configuration in spintronics applications.
引用
收藏
页码：3245 / 3250
页数：5
相关论文
共 127 条
[1]  
Dolui K(2014)Efficient spin injection and giant magnetoresistance in Fe/MoS2/Fe junctions Phys. Rev. B 90 041401-699
[2]  
Narayan A(2007)Spintronics: a challenge for materials science and solid-state chemistry Angew. Chem. 46 668-5967
[3]  
Rungger I(2008)Origin, development, and future of spintronics (Nobel Lecture) Angew. Chem. 47 5956-5613
[4]  
Sanvito S(2004)Spintronics: fundamentals and applications Rev. Mod. Phys. 76 323-2614
[5]  
Felser C(2008)First-principles study of transport of V doped boron nitride nanotube Phys. Lett. A 372 5609-712
[6]  
Fetcher GH(2013)First principle simulations of various magnetic tunnel junctions for applications in magnetoresistive random access memories IEEE Trans. Nanotechnol. 6 12-150
[7]  
Balke B(2016)First-principles study of spin transport in CrO2–graphene–CrO2 magnetic tunnel junction R J. Supercond. Nov. Magn. 29 139-4003
[8]  
Fert A(2015)First-principles study of spin transport in CrO2–CNT–CrO2 magnetic tunnel junction M J. Supercond. Nov. Magn. 28 3141-648
[9]  
Zǔtic I(2015)The electronic structure calculations of two-dimensional transition-metal dichalcogenides in the presence of external electric and magnetic fields Chem. Soc. Rev. 44 2603-10453
[10]  
Fabian J(2007)Spin-orbit gap of graphene: first-principles calculations Phys. Rev. B 75 041401-90
12345678910