Stable dilute magnetic semiconductor and Curie temperature of 3 d transition metal doped strontium titanate perovskite material

Shahjahan, Mohammad; Sadique, M.J.

doi:10.1016/j.cocom.2018.01.008

Cited by 3 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, we will restrict ourselves to mentioning the most commonly studied systems. In this respect, several experimental and theoretical studies have investigated the physical properties of DMS materials [6][7][8][9][10]. More specifically, in the spintronic area, various undoped compounds and compounds doped and co-doped with metallic elements have been experimentally and theoretically investigated, such as CuS [11], GaN [12], PbS [13], ZnO [14,15], and ZnS [16].…”

Section: Introductionmentioning

confidence: 99%

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations

Essajai¹,

Ez‐Zahraouy²

2022

Commun. Theor. Phys.

View full text Add to dashboard Cite

The rutile germanium oxide semiconductor (rutile-GeO2) could act as a half-metallic compound and be promising for spintronic and optoelectronic applications. The calculations have been performed within Korringa-Kohn-Rostoker (KKR) approach combined with the coherent potential approximation (CPA) which are combined with two approximations, the Local Density-Approximation (LDA) then the self-interaction corrected LDA approximation (LDA-SIC) in order to study the electronic structure of bulk rutile-GeO2 doped and co-doped with three transition metals impurities Fe, Co and Ni. The doping value is set to a value of 10% while the co-doping is set to 5% for each impurity. The main findings in this work are: (1) A direct ultrawide bandgap of 4.80 eV is observed and the rutile-GeO2 exhibits N-type semiconducting property. (2) The doped and co-doped GeO2 acquires a magnetic behavior and shows a half-metallicity feature. (3) The mechanism responsible of this property is also studied. (4) The critical temperature can achieve 334 K when doped with Fe while may raises to 398 K when it is co-doped with Fe and Co. (5) The spin polarization can be improved with co-doping. It can be inferred that rutile-GeO2 doped or co-doped with (Co, Fe) transition metals can be considered as a potential candidate for spintronic and optoelectronic applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations

Essajai¹,

Ez‐Zahraouy²

2022

Commun. Theor. Phys.

View full text Add to dashboard Cite

show abstract

“…Some of the DMS namely (Ga, Mn)As, (Ga, Mn)N, (Zn, Cr)O, (Zn, Cr)Te, Cu(Al, TM)Se 2 and Sr(Ti, Fe)O 3 are considered as the promising spintronic materials (Dietl 2000, Goodenough 1955, Kanamori et al 2001, Shahjahan et al 2016, 2018. The TM atoms have partially filled d-states containing unpaired electrons.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dopant Concentrations on Magnetic States of Ti, Mn, And Ni Doped Iii-V Zincblende Compounds

Shahjahan¹,

Khan²,

Rahman³

2018

J Bangladesh Acad Sci

View full text Add to dashboard Cite

The effect of Ti, Mn, and Ni dopants concentration on various magnetic states of III-V zincblende compounds (Al1-xTx)M is presented by calculation of multiple scattering theory based on Korringa–Kohn–Rostoker coherent potential approximation (KKR-CPA), where T denotes Ti, Mn, and Ni atoms and M represents As and P atoms. The calculations reveal the phase changes in various magnetic states, which are solely controlled by dopant concentrations. The turning points of these behaviors are reported, which are responsible for the change of stable ferromagnetic (FM) state to unstable disordered local moment (DLM) state. The Curie temperature, magnetic moments, and density of states at different concentrations of the dopants are calculated and explain the concurrency with magnetic phase stability. Journal of Bangladesh Academy of Sciences, Vol. 42, No. 2, 177-182, 2018

show abstract

The role of the Mn, Fe and La dopants on magnetic properties and electronic structures of strontium titanate quinary compounds

Sadique

Shahjahan

2018

Journal of Science: Advanced Materials and Devices

View full text Add to dashboard Cite

Stable dilute magnetic semiconductor and Curie temperature of 3 d transition metal doped strontium titanate perovskite material

Cited by 3 publications

References 34 publications

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations

Effect of Dopant Concentrations on Magnetic States of Ti, Mn, And Ni Doped Iii-V Zincblende Compounds

The role of the Mn, Fe and La dopants on magnetic properties and electronic structures of strontium titanate quinary compounds

Contact Info

Product

Resources

About

Stable dilute magnetic semiconductor and Curie temperature of 3 d transition metal doped strontium titanate perovskite material

Cited by 3 publications

References 34 publications

Co-, Fe-, Ni-doped and co-doped rutile GeO2: insights from ab-initio calculations

Co-, Fe-, Ni-doped and co-doped rutile GeO2: insights from ab-initio calculations

Effect of Dopant Concentrations on Magnetic States of Ti, Mn, And Ni Doped Iii-V Zincblende Compounds

The role of the Mn, Fe and La dopants on magnetic properties and electronic structures of strontium titanate quinary compounds

Contact Info

Product

Resources

About

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations

Co-, Fe-, Ni-doped and co-doped rutile GeO₂: insights from ab-initio calculations