Magnetic semiconductors are materials that exhibit both semiconducting and magnetic response. These materials are of great interest in the context of spintronics, as they allow the control of charge and spin current.
In our group we work with III-Nitride-based magnetic semiconductors, such as (Ga,Mn)N and (Ga,Fe)N dilute and phase-separated systems.
In particular we want to achieve:
- controlled reproducibility of the epitaxial growth processes
- accurate characterization of the material’s structural properties, and chemical composition, down to atomic scale
- controlled incorporation of magnetic elements: dilution/segregation/precipitation
- correlation of the structural, electrical, chemical properties with the magnetic response
- spin phenomena: spin polarization, spin transfer, etc.
- implementation into spintronic devices
Fig. 1: Modification of magnetic anisotropy in (Ga,Mn)N with an external electric field [14]
Further reading
- T. Dietl and H. Ohno., Rev. Mod. Phys. 86 (2014), opens an external URL in a new window
- T. Dietl et al., Rev. Mod. Phys. 87(2015), opens an external URL in a new window
- W. Pacuski et al., PRL 100 (2008), opens an external URL in a new window
- A. Bonanni et al., PRB 75 (2007), opens an external URL in a new window
- T. Li et al., J. Of Cryst.Growth 310 (2008), opens an external URL in a new window
- A. Bonanni et al., PRL 101 (2008), opens an external URL in a new window
- A. Navarro-Quezada et al., PRB 81 (2010), opens an external URL in a new window
- M. Rovezzi et al., PRB 79 (2009), opens an external URL in a new window
- A. Navarro-Quezada et al., APL 110 (2012), opens an external URL in a new window
- T. Jungwirth et al., Nature Nanotechnology 11 (2016), opens an external URL in a new window
- T. Jungwirth et al., Rev. Mod. Phys. 78, 809 (2006), opens an external URL in a new window
- W. Stefanowicz et al. PRB 81 (2010), opens an external URL in a new window
- A. Bonanni et al., Phys. Rev. B 84 (2011), opens an external URL in a new window
- D. Stzenkiel et al. Nature Comm. 7 (2016), opens an external URL in a new window
- T. Devillers et al. Sci. Reports (2012) , opens an external URL in a new window
- Austrian patent No. 512938
- G. Capuzzo et al. Sci. Reports (2017) , opens an external URL in a new window
- D. Kysylychyn, Master Thesis (2015), opens an external URL in a new window
- A. Navarro-Quezada et al., Phys. Rev. B 99 (2019), opens an external URL in a new window