Coherent spin transport properties of ferromagnetic graphene superlattice unit cell

Asham, Mina D.; Phillips, Adel H.

doi:10.1016/j.physe.2019.05.003

Cited by 6 publications

(2 citation statements)

References 52 publications

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“…The fundamental operating principle of all spintronic devices involves the storage of data in specific spin directions (either up or down) in magnetic materials. Spins, associated with moving electrons, carry information through a wire, and information is read in the terminal [1][2][3]. Since the orientation of the electron spins within a conductor remains constant for a long period of time, spintronic devices offer an appealing option for storage memory and magnetic sensor applications, as well as being inherently suitable for use in quantum computing [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Time-dependent magnetotransport in a hybrid graphene/single magnetic molecule structure

Javadpour,

Hessami Pilehrood

2023

Phys. Scr.

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Graphene is potentially attractive for spintronics due to its weak intrinsic spin–orbit effect leading to a long spin relaxation length. This study examines molecular couplings on a planar graphene sheet, where one molecule is attached to the graphene sheet connected to ferromagnetic leads. The effects of a strong magnetic field, gate voltage, and time-dependent bias voltage on spin and charge tunneling currents are investigated. It is indicated that the studied model system could be controlled by applying a gate voltage and a time-dependent bias voltage. Regarding the interaction between graphene, magnetic molecule, and magnetic field, it is observed that the mutual interaction coefficients between them have the most considerable effect on the transport current. Applying the magnetic field shows that the response time of the current is very short, and the current is not zero in the steady state. In this situation, the current passes through the system continuously.

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Section: Introductionmentioning

confidence: 99%

Time-dependent magnetotransport in a hybrid graphene/single magnetic molecule structure

Javadpour,

Hessami Pilehrood

2023

Phys. Scr.

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“…Recently, there is another degree of freedom in some materials, the valley degree of freedom, which can be utilized to process and carry information, and this research field is called valleytronics [20]- [23]. Many literatures in this field emphasis the ability of superlattice structures to successfully control the transport properties of graphene [24], [25], silicene [26], [27] and semiconductors [28], [29].…”

Section: Introductionmentioning

confidence: 99%

Ferromagnetic Silicene Superlattice Based Thermoelectric Flexible Renewable Energy Generator Device

2021

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The object of the current research manuscript is to analyze the valley-spin thermoelectric properties and Nernst coefficient at two different temperatures for ferromagnetic silicene superlattice. Photon-assisted tunneling probability is used to identify the resolved thermoelectric parameters including (valley, spin, and charge) electronic thermal conductance, Seebeck coefficient, figure of merit, and also electrical conductance and Nernst coefficient. The results show oscillatory behavior to all investigated parameters. The improved data of Seebeck coefficient (valley, spin, and charge) could be because of quantum confinement effect of the present investigated nanodevice. The figure of merit (valley, spin, and charge) attains quite high values with good high thermoelectric efficiency. The enhancement of Nernst coefficient (valley, spin, and charge) might consider Nernst effect is suitable for thermoelectric heat energy conversion system of the present flexible ferromagnetic silicene superlattice. The ferromagnetic silicene superlattice nanodevices are good candidates for flexible renewable energy generation as demonstrated by this analysis.

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Valley and spin-dependent shot noise properties in monolayer MoS2-based superlattice

Sattari

Mirershadi

2022

Indian J Phys

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Coherent spin transport properties of ferromagnetic graphene superlattice unit cell

Cited by 6 publications

References 52 publications

Time-dependent magnetotransport in a hybrid graphene/single magnetic molecule structure

Time-dependent magnetotransport in a hybrid graphene/single magnetic molecule structure

Ferromagnetic Silicene Superlattice Based Thermoelectric Flexible Renewable Energy Generator Device

Valley and spin-dependent shot noise properties in monolayer MoS2-based superlattice

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