Field and temperature tuning of magnetic diode in permalloy honeycomb lattice

George Yumnam; Moudip Nandi; Pousali Ghosh; Amjed Abdullah; Mahmoud Almasri; Erik Henriksen; Deepak K. Singh

doi:10.1016/j.mtadv.2023.100386

Field and temperature tuning of magnetic diode in permalloy honeycomb lattice

George Yumnam, Moudip Nandi, Pousali Ghosh, Amjed Abdullah, Mahmoud Almasri, Erik Henriksen, Deepak K. Singh

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The observation of magnetic diode behavior with ultra-low forward voltage renders new venue for energetically efficient spintronic device research in the unconventional system of two-dimensional permalloy honeycomb lattice. However, detailed understanding of temperature and magnetic field tuning of diode behaviors are imperative to any practical application. In this report, our study unveils many important properties of magnetic diode that not only pave the way for practical applications, but also underlines the role of emergent phenomena of magnetic charge correlation on honeycomb vertices. We find that magnetic diode behavior persists across a broad temperature range. In a surprising observation, magnetic field application tends to induce a peculiar reentrant characteristic where diode behavior is suppressed in remnant field but reappears after warming to room temperature. Analysis of $I-V$ data suggests a modest energy gap, $∖sim$ 0.03 - 0.1 eV, which is comparable to magnetic Coulomb's interaction energy between emergent magnetic charges on honeycomb vertices in the reverse biased state. It affirms the role of magnetic charge correlation in unidirectional conduction in 2D honeycomb lattice. The experimental results are expected to spur the utilization of magnetic diode in next generation spintronic device applications.

Original language	English
Article number	100386
Journal	Materials Today Advances
Volume	18
DOIs	https://doi.org/10.1016/j.mtadv.2023.100386
State	Published - Jun 2023
Externally published	Yes

Funding

DKS thankfully acknowledges the support by US Department of Energy , Office of Science , Office of Basic Energy Sciences under the grant no. DE-SC0014461 .

Funders	Funder number
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DE-SC0014461

Keywords

Artificial magnetic honeycomb lattice
Magnetic charge dynamics
Magnetic diode
Spintronics

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10.1016/j.mtadv.2023.100386

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title = "Field and temperature tuning of magnetic diode in permalloy honeycomb lattice",

abstract = "The observation of magnetic diode behavior with ultra-low forward voltage renders new venue for energetically efficient spintronic device research in the unconventional system of two-dimensional permalloy honeycomb lattice. However, detailed understanding of temperature and magnetic field tuning of diode behaviors are imperative to any practical application. In this report, our study unveils many important properties of magnetic diode that not only pave the way for practical applications, but also underlines the role of emergent phenomena of magnetic charge correlation on honeycomb vertices. We find that magnetic diode behavior persists across a broad temperature range. In a surprising observation, magnetic field application tends to induce a peculiar reentrant characteristic where diode behavior is suppressed in remnant field but reappears after warming to room temperature. Analysis of $I-V$ data suggests a modest energy gap, $∖sim$ 0.03 - 0.1 eV, which is comparable to magnetic Coulomb's interaction energy between emergent magnetic charges on honeycomb vertices in the reverse biased state. It affirms the role of magnetic charge correlation in unidirectional conduction in 2D honeycomb lattice. The experimental results are expected to spur the utilization of magnetic diode in next generation spintronic device applications.",

keywords = "Artificial magnetic honeycomb lattice, Magnetic charge dynamics, Magnetic diode, Spintronics",

author = "George Yumnam and Moudip Nandi and Pousali Ghosh and Amjed Abdullah and Mahmoud Almasri and Erik Henriksen and Singh, {Deepak K.}",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors",

year = "2023",

month = jun,

doi = "10.1016/j.mtadv.2023.100386",

language = "English",

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T1 - Field and temperature tuning of magnetic diode in permalloy honeycomb lattice

AU - Yumnam, George

AU - Nandi, Moudip

AU - Ghosh, Pousali

AU - Abdullah, Amjed

AU - Almasri, Mahmoud

AU - Henriksen, Erik

AU - Singh, Deepak K.

PY - 2023/6

Y1 - 2023/6

N2 - The observation of magnetic diode behavior with ultra-low forward voltage renders new venue for energetically efficient spintronic device research in the unconventional system of two-dimensional permalloy honeycomb lattice. However, detailed understanding of temperature and magnetic field tuning of diode behaviors are imperative to any practical application. In this report, our study unveils many important properties of magnetic diode that not only pave the way for practical applications, but also underlines the role of emergent phenomena of magnetic charge correlation on honeycomb vertices. We find that magnetic diode behavior persists across a broad temperature range. In a surprising observation, magnetic field application tends to induce a peculiar reentrant characteristic where diode behavior is suppressed in remnant field but reappears after warming to room temperature. Analysis of $I-V$ data suggests a modest energy gap, $∖sim$ 0.03 - 0.1 eV, which is comparable to magnetic Coulomb's interaction energy between emergent magnetic charges on honeycomb vertices in the reverse biased state. It affirms the role of magnetic charge correlation in unidirectional conduction in 2D honeycomb lattice. The experimental results are expected to spur the utilization of magnetic diode in next generation spintronic device applications.

AB - The observation of magnetic diode behavior with ultra-low forward voltage renders new venue for energetically efficient spintronic device research in the unconventional system of two-dimensional permalloy honeycomb lattice. However, detailed understanding of temperature and magnetic field tuning of diode behaviors are imperative to any practical application. In this report, our study unveils many important properties of magnetic diode that not only pave the way for practical applications, but also underlines the role of emergent phenomena of magnetic charge correlation on honeycomb vertices. We find that magnetic diode behavior persists across a broad temperature range. In a surprising observation, magnetic field application tends to induce a peculiar reentrant characteristic where diode behavior is suppressed in remnant field but reappears after warming to room temperature. Analysis of $I-V$ data suggests a modest energy gap, $∖sim$ 0.03 - 0.1 eV, which is comparable to magnetic Coulomb's interaction energy between emergent magnetic charges on honeycomb vertices in the reverse biased state. It affirms the role of magnetic charge correlation in unidirectional conduction in 2D honeycomb lattice. The experimental results are expected to spur the utilization of magnetic diode in next generation spintronic device applications.

KW - Artificial magnetic honeycomb lattice

KW - Magnetic charge dynamics

KW - Magnetic diode

KW - Spintronics

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Field and temperature tuning of magnetic diode in permalloy honeycomb lattice

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