Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method

Saja Al Khabouri; Salim Al Harthi; Toru Maekawa; Mohamed E. Elzain; Htet Htet Kyaw; Myo Tay Zar Myint; Karthik Laxman

doi:10.1016/j.matchemphys.2021.124858

Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method

Saja Al Khabouri, Salim Al Harthi^*, Toru Maekawa, Mohamed E. Elzain, Htet Htet Kyaw, Myo Tay Zar Myint, Karthik Laxman

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

We have synthesized ternary Ni–Co–Cr nanoclusters using one step method by simultaneous sputtering of metallic targets through inert gas condensation (IGC) deposition process. The difference in surface energy between the component atoms creates a preferential surface phase leading to the formation of multi core/shell structures. Surface structure and composition analysis reveal metallic and oxide phases characterized by extraordinary 1.43 μm periodicity strong magnetic stripe domains with weak magnetic force microscopy signal attenuation up to a lift height value of 2.5 μm. In addition, the ternary nanoclusters exhibit strong ferromagnetic behavior below the blocking temperature of 139 K with coercivity of 700 Oe at 4 K. The enhanced magnetic properties are attributed to Volmer-Weber growth mechanism and pave a facile way for preparing ternary core/shell magnetic structures needed for applications which require strong magnetic anisotropy along their growth direction.

Original language	English
Article number	124858
Journal	Materials Chemistry and Physics
Volume	271
DOIs	https://doi.org/10.1016/j.matchemphys.2021.124858
Publication status	Published - Oct 1 2021
Externally published	Yes

Keywords

Core/shell
Ferromagnetic
Inert gas condensation
Magnetic
Nanoclusters

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.matchemphys.2021.124858

Cite this

Al Khabouri, S., Al Harthi, S., Maekawa, T., Elzain, M. E., Kyaw, H. H., Zar Myint, M. T., & Laxman, K. (2021). Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method. Materials Chemistry and Physics, 271, Article 124858. https://doi.org/10.1016/j.matchemphys.2021.124858

@article{cfe172960b394535b16bdd0aa1111c04,

title = "Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method",

abstract = "We have synthesized ternary Ni–Co–Cr nanoclusters using one step method by simultaneous sputtering of metallic targets through inert gas condensation (IGC) deposition process. The difference in surface energy between the component atoms creates a preferential surface phase leading to the formation of multi core/shell structures. Surface structure and composition analysis reveal metallic and oxide phases characterized by extraordinary 1.43 μm periodicity strong magnetic stripe domains with weak magnetic force microscopy signal attenuation up to a lift height value of 2.5 μm. In addition, the ternary nanoclusters exhibit strong ferromagnetic behavior below the blocking temperature of 139 K with coercivity of 700 Oe at 4 K. The enhanced magnetic properties are attributed to Volmer-Weber growth mechanism and pave a facile way for preparing ternary core/shell magnetic structures needed for applications which require strong magnetic anisotropy along their growth direction.",

keywords = "Core/shell, Ferromagnetic, Inert gas condensation, Magnetic, Nanoclusters",

author = "{Al Khabouri}, Saja and {Al Harthi}, Salim and Toru Maekawa and Elzain, {Mohamed E.} and Kyaw, {Htet Htet} and {Zar Myint}, {Myo Tay} and Karthik Laxman",

note = "Funding Information: Authors would like to thank Department of Physics, Sultan Qaboos University. We thank Yutaka Nagaoka, Bio-Nano Electronics Research Center, Toyo University, for conducting TEM measurement. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = oct,

day = "1",

doi = "10.1016/j.matchemphys.2021.124858",

language = "English",

volume = "271",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method

AU - Al Khabouri, Saja

AU - Al Harthi, Salim

AU - Maekawa, Toru

AU - Elzain, Mohamed E.

AU - Kyaw, Htet Htet

AU - Zar Myint, Myo Tay

AU - Laxman, Karthik

N1 - Funding Information: Authors would like to thank Department of Physics, Sultan Qaboos University. We thank Yutaka Nagaoka, Bio-Nano Electronics Research Center, Toyo University, for conducting TEM measurement. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/10/1

Y1 - 2021/10/1

N2 - We have synthesized ternary Ni–Co–Cr nanoclusters using one step method by simultaneous sputtering of metallic targets through inert gas condensation (IGC) deposition process. The difference in surface energy between the component atoms creates a preferential surface phase leading to the formation of multi core/shell structures. Surface structure and composition analysis reveal metallic and oxide phases characterized by extraordinary 1.43 μm periodicity strong magnetic stripe domains with weak magnetic force microscopy signal attenuation up to a lift height value of 2.5 μm. In addition, the ternary nanoclusters exhibit strong ferromagnetic behavior below the blocking temperature of 139 K with coercivity of 700 Oe at 4 K. The enhanced magnetic properties are attributed to Volmer-Weber growth mechanism and pave a facile way for preparing ternary core/shell magnetic structures needed for applications which require strong magnetic anisotropy along their growth direction.

AB - We have synthesized ternary Ni–Co–Cr nanoclusters using one step method by simultaneous sputtering of metallic targets through inert gas condensation (IGC) deposition process. The difference in surface energy between the component atoms creates a preferential surface phase leading to the formation of multi core/shell structures. Surface structure and composition analysis reveal metallic and oxide phases characterized by extraordinary 1.43 μm periodicity strong magnetic stripe domains with weak magnetic force microscopy signal attenuation up to a lift height value of 2.5 μm. In addition, the ternary nanoclusters exhibit strong ferromagnetic behavior below the blocking temperature of 139 K with coercivity of 700 Oe at 4 K. The enhanced magnetic properties are attributed to Volmer-Weber growth mechanism and pave a facile way for preparing ternary core/shell magnetic structures needed for applications which require strong magnetic anisotropy along their growth direction.

KW - Core/shell

KW - Ferromagnetic

KW - Inert gas condensation

KW - Magnetic

KW - Nanoclusters

UR - http://www.scopus.com/inward/record.url?scp=85109157880&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85109157880&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2021.124858

DO - 10.1016/j.matchemphys.2021.124858

M3 - Article

AN - SCOPUS:85109157880

SN - 0254-0584

VL - 271

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 124858

ER -

Structure, composition and enhanced magnetic properties of novel ternary multicore-shell Ni–Co–Cr nanoclusters prepared by one-step inert gas condensation method

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this