Next Article in Journal
Structural Characterization of the S-glycosylated Bacteriocin ASM1 from Lactobacillus plantarum
Previous Article in Journal
Effect of Terbium Ion Substitution in Inverse Spinel Nickel Ferrite: Structural and Magnetic Study
Previous Article in Special Issue
False Chirality, Absolute Enantioselection and CP Violation: Pierre Curie’s Legacy
Open AccessReview

Nano-Structured Dilute Magnetic Semiconductors for Efficient Spintronics at Room Temperature

1
Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi 110021, India
2
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
3
Department of Chemistry, Sri Aurobindo College, University of Delhi, Delhi 110017, India
4
Department of Chemistry, Kirori Mal College, University of Delhi, Delhi 110007, India
5
Special Centre for Nano Sciences, Jawaharlal Nehru University, Delhi 110067, India
6
School of Physics, Trinity College, Dublin D02 PN40, Ireland
*
Authors to whom correspondence should be addressed.
Magnetochemistry 2020, 6(1), 15; https://doi.org/10.3390/magnetochemistry6010015
Received: 20 September 2019 / Revised: 12 February 2020 / Accepted: 14 February 2020 / Published: 16 March 2020
In recent years, many efforts have been made to develop advanced metal oxide semiconductor nanomaterials with exotic magnetic properties for modern applications w.r.t traditional analogues. Dilute magnetic semiconductor oxides (DMSOs) are promising candidates for superior control over the charge and spin degrees of freedom. DMSOs are transparent, wide band gap materials with induced ferromagnetism in doping, with a minor percentage of magnetic 3d cation to create a long-range antiferromagnetic order. Although significant efforts have been carried out to achieve DMSO with ferromagnetic properties above room temperature, it is a great challenge that still exists. However, TiO2, SnO2, ZnO and In2O3 with wide band gaps of 3.2, 3.6, 3.2 and 2.92 eV, respectively, can host a broad range of dopants to generate various compositions. Interestingly, a reduction in the size of these binary oxides can induce ferromagnetism, even at room temperature, due to the grain boundary, presence of defects and oxygen vacancies. The present review provides a panorama of the structural analysis and magnetic properties of DMSOs based on binary metal oxides nanomaterials with various ferromagnetic or paramagnetic dopants, e.g., Co, V, Fe and Ni, which exhibit enhanced ferromagnetic behaviors at room temperature. View Full-Text
Keywords: TiO2; SnO2; ZnO; In2O3; ferromagnetic TiO2; SnO2; ZnO; In2O3; ferromagnetic
Show Figures

Figure 1

MDPI and ACS Style

Gupta, A.; Zhang, R.; Kumar, P.; Kumar, V.; Kumar, A. Nano-Structured Dilute Magnetic Semiconductors for Efficient Spintronics at Room Temperature. Magnetochemistry 2020, 6, 15.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop