Dependence of Tunnel Resistance on the Injection Current of Magnetic Tunnel Junctions

Cun-Ye, Liu; Li, Jian; Chen, Jianyong; Qing-Yu, Xu; Ni, Gang; Du, Youwei

doi:10.1088/0256-307x/19/3/334

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Appendix a Supplementary Data: Graphene Spin Valve Device Fa...1

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2022

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“…A negative differential resistivity and even a negative resistivity could be observed when high bias voltages were applied to some samples. The main reason for this unusual phenomenon is the low resistivity and low barrier height due to a large amount of pinholes, which causes negative resistance [24]in crossed-wire devices. To avoid In the last step of device fabrication, Cobalt is deposited on top of the magnetic tunnel barrier by thermal evaporation.…”

Section: Appendix a Supplementary Data: Graphene Spin Valve Device Fa...mentioning

confidence: 99%

Thermal spin injection from a ferromagnet into graphene by transverse and longitudinal current

Yang¹,

Teizer²

2022

Preprint

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Graphene is a very promising material in spintronics due to both its high electric mobility and low intrinsic spin-obit coupling. Electronic spins can be injected from a ferromagnetic material through a tunnel contact into graphene owing to a spin relaxation length as high as 5µm. In recent years, a new approach creating spin current employed thermal effects and heat flow. Here, by applying transverse and longitudinal current to a grahene spin valve device, the interplay between the heat spin current and the charge spin current is investigated. The non-local spin voltage is enhanced by the thermal spin injection and the thermal spin voltage reaches a maximum close to the Dirac point which makes graphene a promising material for a future thermoelectric spin device due to its long spin lifetime and spin diffusion length.

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Section: Appendix a Supplementary Data: Graphene Spin Valve Device Fa...mentioning

confidence: 99%

Thermal spin injection from a ferromagnet into graphene by transverse and longitudinal current

Yang¹,

Teizer²

2022

Preprint

View full text Add to dashboard Cite

show abstract

Dependence of Tunnel Resistance on the Injection Current of Magnetic Tunnel Junctions

Cited by 1 publication

References 11 publications

Thermal spin injection from a ferromagnet into graphene by transverse and longitudinal current

Thermal spin injection from a ferromagnet into graphene by transverse and longitudinal current

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