In this Letter, we explore the lattice, dynamical stability, and electronic and magnetic properties of FeTe bulk and FeX (X = S, Se, Te) monolayers using the density functional calculations. The phonon dispersion relation, elastic stability criteria, and cohesive energy results show the stability of studied FeX monolayers. The mechanical properties reveal that all FeX monolayers have a brittle nature. Furthermore, these structures are stable as we move down the 6A group in the periodic table, i.e., from S, Se, and Te. The stability and work function decrease as the electronegativity decreases. The spin-polarized electronic structures demonstrate that the FeTe monolayer has a total magnetization of 3.8 μB, which is smaller than the magnetization of FeTe bulk (4.7 μB). However, FeSe and FeS are nonmagnetic monolayers. The FeTe monolayer can be a good candidate material for spin filter applications due to its electronic and magnetic properties. This study highlights the bright prospect for the application of FeX monolayers in electronic structures.
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5 April 2021
Research Article|
April 07 2021
Electronic and magnetic properties of two-dimensional of FeX (X = S, Se, Te) monolayers crystallize in the orthorhombic structures
A. Bafekry
;
A. Bafekry
a)
1
Department of Radiation Application, Shahid Beheshti University
, Tehran 1983969411, Iran
2
Department of Physics, University of Antwerp
, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
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I. Abdolhosseini Sarsari;
I. Abdolhosseini Sarsari
3
Department of Physics, Isfahan University of Technology
, Isfahan 84156-83111, Iran
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M. Faraji;
M. Faraji
4
Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology
, Sogutozu Caddesi No 43 Sogutozu, 06560 Ankara, Turkey
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M. M. Fadlallah
;
M. M. Fadlallah
5
Department of Physics, Faculty of Science, Benha University
, 13518 Benha, Egypt
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H. R. Jappor
;
H. R. Jappor
6
Department of Physics, College of Education for Pure Sciences, University of Babylon
, Hilla 51002, Iraq
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S. Karbasizadeh;
S. Karbasizadeh
3
Department of Physics, Isfahan University of Technology
, Isfahan 84156-83111, Iran
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V. Nguyen
;
V. Nguyen
7
Institute of Research and Development, Duy Tan University
, Da Nang 550000, Vietnam
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M. Ghergherehchi
M. Ghergherehchi
a)
8
College of Electronic and Electrical Engineering, Sungkyunkwan University
, Suwon 16419, Korea
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A. Bafekry
1,2,a)
I. Abdolhosseini Sarsari
3
M. Faraji
4
M. M. Fadlallah
5
H. R. Jappor
6
S. Karbasizadeh
3
V. Nguyen
7
M. Ghergherehchi
8,a)
1
Department of Radiation Application, Shahid Beheshti University
, Tehran 1983969411, Iran
2
Department of Physics, University of Antwerp
, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
3
Department of Physics, Isfahan University of Technology
, Isfahan 84156-83111, Iran
4
Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology
, Sogutozu Caddesi No 43 Sogutozu, 06560 Ankara, Turkey
5
Department of Physics, Faculty of Science, Benha University
, 13518 Benha, Egypt
6
Department of Physics, College of Education for Pure Sciences, University of Babylon
, Hilla 51002, Iraq
7
Institute of Research and Development, Duy Tan University
, Da Nang 550000, Vietnam
8
College of Electronic and Electrical Engineering, Sungkyunkwan University
, Suwon 16419, Korea
Appl. Phys. Lett. 118, 143102 (2021)
Article history
Received:
February 05 2021
Accepted:
March 22 2021
Citation
A. Bafekry, I. Abdolhosseini Sarsari, M. Faraji, M. M. Fadlallah, H. R. Jappor, S. Karbasizadeh, V. Nguyen, M. Ghergherehchi; Electronic and magnetic properties of two-dimensional of FeX (X = S, Se, Te) monolayers crystallize in the orthorhombic structures. Appl. Phys. Lett. 5 April 2021; 118 (14): 143102. https://doi.org/10.1063/5.0046721
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