Epitaxial Growth Of Cubic Mnsb Ongaas And Ingaas (111)

DOI: 10.1142/S2010324714400256

Authors: Gavin Bell (University of Warwick) , Christopher Burrows (University of Warwick) , T P A Hase (University of Warwick) , Mark J. Ashwin , Sean R. C. Mcmitchell , Ana M. Sanchez , James D. Aldous
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Spin

State: Published (Approved)
Published: September 2014
Diamond Proposal Number(s): 8877 , 6507

Abstract: The cubic polymorph of the binary transition metal pnictide (TMP) MnSb, c-MnSb, has been predicted to be a robust half-metallic ferromagnetic (HMF) material with minority spin gap 1 eV. Here, MnSb epilayers are grown by molecular beam epitaxy (MBE) on GaAs and In0:5Ga0:5As(111) substrates and analyzed using synchrotron radiation X-ray diffraction. We find polymorphic growth of MnSb on both substrates, where c-MnSb co-exists with the ordinary niccolite n-MnSb polymorph. The grain size of the c-MnSb is of the order of tens of nanometer on both substrates and its appearance during MBE growth is independent of the very different epitaxial strain from the GaAs (3.1%) and In0:5Ga0:5As (0.31%) substrates.

Subject Areas: Materials, Physics, Information and Communication Technology


Instruments: I07-Surface & interface diffraction , I16-Materials and Magnetism

Other Facilities: ESRF (XMaS) NSLS (X22C)

Added On: 29/10/2014 11:53

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