Tunnel Magnetoresistance in Self-Assemblies of Exchange-Coupled Core/Shell Nanoparticles

被引：17
作者：
Fabris, Fernando [1 ]
Lima, Enio, Jr. [1 ]
Quinteros, Cynthia [1 ]
Nener, Lucas [1 ]
Granada, Mara [1 ]
Sirena, Martin [1 ]
Zysler, Roberto D. [1 ]
Troiani, Horacio E. [1 ]
Leboran, Victor [2 ]
Rivadulla, Francisco [2 ]
Winkler, Elin L. [1 ]
机构：
[1] Consejo Nacl Invest Cient & Tecn, CNEA, Ctr Atom Bariloche, Ave Bustillo 9500, San Carlos De Bariloche, Rio Negro, Argentina
[2] Univ Santiago de Compostela, Ctr Singular Invest Quim Biol & Mat Mol CIQUS, Dept Quim Fis, Santiago De Compostela 15782, Spain
来源：
PHYSICAL REVIEW APPLIED | 2019年 / 11卷 / 05期
关键词：
ROOM-TEMPERATURE; ENHANCED MAGNETORESISTANCE; ELECTRICAL-TRANSPORT; MODEL; HETEROSTRUCTURES; COERCIVITY; BARRIER; BIAS;
D O I：
10.1103/PhysRevApplied.11.054089
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the precise control of tunneling magnetoresistance (TMR) in devices of self-assembled core-shell Fe3O4/Co1-xZnxF2O4 nanoparticles (0 <= x <= 1). Adjusting the magnetic anisotropy through the content of Co2+ in the shell, provides an accurate tool to control the switching field between the bistable states of the TMR. In this way, different combinations of soft-hard and hard-soft core/shell configurations can be envisaged for optimizing devices with the required magnetotransport response.
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页数：11
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