Roll bonding mechanism for Mg/Al composite plate based on electron work function in the initial stage

Jia, Haoyue; Han, Jianchao; Li, Kun; Lai, Yunjin; Wang, Tao

doi:10.1007/s00170-022-09419-2

Cited by 3 publications

(1 citation statement)

References 57 publications

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“…These devices showed less NC effects when Al nanosheets are inserted between layers of FeSe 2 . In truth, the aluminum work function being 4.08 eV [ 25 ] is less than that of p ‐type iron selenide reported as 4.50 eV [ 26 ] producing a Schottky barrier at the Al/FeSe 2 interfaces. The Schottky barrier prevents or significantly hinders the movement of charge carriers, resulting in a reduced current or even a complete blockade of charge carriers.…”

Section: Resultsmentioning

confidence: 99%

Iron Selenide Nanowire Bundles for Microwave Communication Technology

Qasrawi,

Toubasi

2023

Physica Status Solidi (a)

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Herein stacked layers of FeSe2 deposited onto ytterbium substrates using the thermal evaporation technique under a vacuum pressure of 10‐5 mbar are observed to form nanowire bundles (NB). Structural investigations on these NBs have shown the preferred growth of orthorhombic FeSe2 in addition to hexagonal ytterbium selenide as a minor phase in the structure of FeSe2. Impedance spectroscopy analyses conducted in the frequency domain of 0.01‐1.80 GHz shown that FeSe2 stacks can exhibit a negative capacitance effect and band stop filter characteristics. For these band stop filters, the refection coefficient (S11), the voltage standing wave ratios (VSWR) and the return loss (Lr) spectra displayed optimum values at a notch frequency of 0.87 GHz. In addition, computational analysis using Lorentz Oscillator (LO) Model has shown that the negativity of the capacitance is dominated by two oscillators centered at 0.08 GHz and 1.25 GHz. On the other hand, the insertion of aluminum nanosheets between the stacked layers of FeSe2 has been observed to decrease the negativity of the capacitance, increase the values of S11 and Lr and bring the VSWR closer to ideality. FeSe2 nanowire bundles resulting from FeSe2 stacks comprising Al nanosheets are considered suitable for microwave communication technology.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%