Magnetic properties of Co doped WSe2 by implantation

S. Ahmed; X. Ding; Peter P. Murmu; N. N. Bao; R. Liu; J. Kennedy; J. Ding; J. B. Yi

doi:10.1016/j.jallcom.2017.09.288

Magnetic properties of Co doped WSe₂ by implantation

S. Ahmed
, X. Ding
, Peter P. Murmu
, N. N. Bao
, R. Liu
, J. Kennedy
, J. Ding
, J. B. Yi^*

^*Corresponding author for this work

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

46 Scopus citations

Abstract

In this research, the potential of transition metal doped 2D WSe₂ as a 2D dilute magnetic semiconductor has been explored experimentally. Single crystal WSe₂ was doped with Co with various concentrations by a physical implantation method. Raman and X-ray diffraction spectra indicate the effective doping of Co in the substitutional sites. Secondary ion mass spectrometry results demonstrate the Gaussian distribution of Co in WSe₂. Magnetic measurements show that both un-doped WSe₂ and WSe₂ doped with Co exhibit weak ferromagnetism at room temperature. The magnetization is increased with Co doping compared to un-doped WSe₂ and it tends to be enhanced with increasing doping concentration.

Original language	English
Pages (from-to)	25-31
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	731
DOIs	https://doi.org/10.1016/j.jallcom.2017.09.288
State	Published - 15 Jan 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Diluted magnetic semiconductor (DMS)
Ferromagnetism
Ion implantation
Magnetic properties
Transition metal dichalcogenides (TMDCs)
Two-dimensional materials

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2017.09.288

Cite this

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title = "Magnetic properties of Co doped WSe2 by implantation",

abstract = "In this research, the potential of transition metal doped 2D WSe2 as a 2D dilute magnetic semiconductor has been explored experimentally. Single crystal WSe2 was doped with Co with various concentrations by a physical implantation method. Raman and X-ray diffraction spectra indicate the effective doping of Co in the substitutional sites. Secondary ion mass spectrometry results demonstrate the Gaussian distribution of Co in WSe2. Magnetic measurements show that both un-doped WSe2 and WSe2 doped with Co exhibit weak ferromagnetism at room temperature. The magnetization is increased with Co doping compared to un-doped WSe2 and it tends to be enhanced with increasing doping concentration.",

keywords = "Diluted magnetic semiconductor (DMS), Ferromagnetism, Ion implantation, Magnetic properties, Transition metal dichalcogenides (TMDCs), Two-dimensional materials",

author = "S. Ahmed and X. Ding and Murmu, \{Peter P.\} and Bao, \{N. N.\} and R. Liu and J. Kennedy and J. Ding and Yi, \{J. B.\}",

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year = "2018",

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day = "15",

doi = "10.1016/j.jallcom.2017.09.288",

language = "English",

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TY - JOUR

T1 - Magnetic properties of Co doped WSe2 by implantation

AU - Ahmed, S.

AU - Ding, X.

AU - Murmu, Peter P.

AU - Bao, N. N.

AU - Liu, R.

AU - Kennedy, J.

AU - Ding, J.

AU - Yi, J. B.

PY - 2018/1/15

Y1 - 2018/1/15

N2 - In this research, the potential of transition metal doped 2D WSe2 as a 2D dilute magnetic semiconductor has been explored experimentally. Single crystal WSe2 was doped with Co with various concentrations by a physical implantation method. Raman and X-ray diffraction spectra indicate the effective doping of Co in the substitutional sites. Secondary ion mass spectrometry results demonstrate the Gaussian distribution of Co in WSe2. Magnetic measurements show that both un-doped WSe2 and WSe2 doped with Co exhibit weak ferromagnetism at room temperature. The magnetization is increased with Co doping compared to un-doped WSe2 and it tends to be enhanced with increasing doping concentration.

AB - In this research, the potential of transition metal doped 2D WSe2 as a 2D dilute magnetic semiconductor has been explored experimentally. Single crystal WSe2 was doped with Co with various concentrations by a physical implantation method. Raman and X-ray diffraction spectra indicate the effective doping of Co in the substitutional sites. Secondary ion mass spectrometry results demonstrate the Gaussian distribution of Co in WSe2. Magnetic measurements show that both un-doped WSe2 and WSe2 doped with Co exhibit weak ferromagnetism at room temperature. The magnetization is increased with Co doping compared to un-doped WSe2 and it tends to be enhanced with increasing doping concentration.

KW - Diluted magnetic semiconductor (DMS)

KW - Ferromagnetism

KW - Ion implantation

KW - Magnetic properties

KW - Transition metal dichalcogenides (TMDCs)

KW - Two-dimensional materials

UR - https://www.scopus.com/pages/publications/85031007369

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DO - 10.1016/j.jallcom.2017.09.288

M3 - Article

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JF - Journal of Alloys and Compounds

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