Aldous, J. D. (James D.), Burrows, C. W., Sanchez, A. M., Beanland, Richard, Maskery, I. (Ian), Bradley, M. K. (Matthew K.), Dias, Manuel dos Santos, Staunton, J. B. and Bell, Gavin R.. (2012) Cubic MnSb : epitaxial growth of a predicted room temperature half-metal. Physical Review B, Vol.85 (No.6). Article no. 060403(R). ISSN 1098-0121

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Abstract

Epitaxial films including bulklike cubic and wurtzite polymorphs of MnSb have been grown by molecular beam epitaxy on GaAs via careful control of the Sb4/Mn flux ratio. Nonzero-temperature density functional theory was used to predict ab initio the half-metallicity of the cubic polymorph and compare its spin polarization as a function of reduced magnetization with that of the well known half-metal NiMnSb. In both cases, half-metallicity is lost at a threshold magnetization reduction, corresponding to a temperature T*<TC. This threshold is far higher for cubic MnSb compared to NiMnSb and corresponds to T*>350 K, making epitaxial cubic MnSb a promising candidate for efficient room temperature spin injection into semiconductors.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Epitaxy, Thin films, Semiconductors
Journal or Publication Title:	Physical Review B
Publisher:	American Physical Society
ISSN:	1098-0121
Date:	14 February 2012
Volume:	Vol.85
Number:	No.6
Page Range:	Article no. 060403(R)
Identification Number:	10.1103/PhysRevB.85.060403
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC), Royal Society (Great Britain), Birmingham Science City, Advantage West Midlands (AWM), European Regional Development Fund (ERDF), Fundação para a Ciência e a Tecnologia (FCT)
Grant number:	SFRH/BD/35738/2007 (FCT)
References:	1 B. Hillebrands and C. Felser, J. Phys. D: Appl. Phys. 39, Issue 5 (2006). 2 M. I. Katsnelson, V. Y. Irkhin, L. Chioncel, A. I. Lichtenstein, and R. A. de Groot, Rev. Mod. Phys. 80, 315 (2008). 3 P. Dowben, J. Phys. Condens. Matter 19, 310301 (2007). 4 R. A. de Groot, F. M. Mueller, P. G. van Engen, and K. H. J. Buschow, Phys. Rev. B 64, 060403 (2001). 5 W. Zhu, B. Sinkovic, E. Vescovo, C. Tanaka and J. S. Moodera, Phys. Rev. Lett. 50, 2024 (1983). 6 W. Zhu, B. Sinkovic, E. Vescovo, C. Tanaka and J. S. Moodera, Phys. Rev. B Rapid Comm. 64, 060403 (2001). 7 M. Sicot, P. Turban, S. Andrieu, A. Tagliaferri, C. De Nadai, N. B. Brookes, F. Bertran and F. Fortuna J. Mag. Magn. Mater. 303, 54 (2006). 8 W. Van Roy, P. Van Dorpe, V. Motsnyi, Z. Liu, G. Borghs and J. De Boeck, phys. stat. sol. 241, 1470 (2004). 9 Y. Miyoshi et al., Appl. Phys. Lett. 88, 142512 (2006). 10 F. Wang et al., Jpn. J. Appl. Phys. 49, 025502 (2010). 11 J. J. Attema, G. A. de Wijs, and R. A. de Groot, J. Phys. D.: Appl. Phys. 39, 793 (2006). 12 M. Leˇzai´c, P. Mavropoulos, J. Enkovaara, G. Bihlmayer, and S. Bl¨ugel, J. Mater. Sci. 97, 026404 (2006). 13 R. Skomski, J. Appl. Phys. 103, 07D714 (2008). 14 P. A. Dowben and R. Skomski, J. Appl. Phys. 95, 7543 (2004). 15 H. Akinaga, T. Manago, and M. Shirai, Jpn. J. Appl. Phys. 39, L1118 (2000). 16 J. E. Pask, L. H. Yang, C. Y. Fong, W. E. Pickett, and S. Dag, Phys. Rev. B 67, 224420 (2003). 17 W.-H. Xie, B.-G. Liu, and D. G. Pettifor, Phys. Rev. B 68, 134407 (2003). 18 J. H. Zhao, F. Matsukura, E. A. K. Takamura, D. Chiba, and H. Ohno, Appl. Phys. Lett. 79, 2776 (2001). 19 V. H. Etgens et al., Phys. Rev. Lett. 92, 167205 (2004). 20 S. J. Hashemifar, P. Kratzer, and M. Scheffler, Phys. Rev. B 82, 214417 (2010). 21 H. Ebert, D. K¨odderitzisch and J. Min´ar, Rep. Prog. Phys. 74, 096501 (2011). 22 S. J. Clark et al., Zeit. Kristallogr. 220, 567 (2005). 23 O. Rader et al., Phys. Rev. B. 57, R689 (1998). 24 B. L. Gyorffy, A. J. Pindor, J. B. Staunton, G. M. Stocks, and H. Winter, J. Phys. F: Met. Phys. 15, 1337 (1985). 25 M. dos Santos Dias, J. B. Staunton, A. Deak, and L. Szunyogh, Phys. Rev. B. 83, 054435 (2011). 26 P. Soven, Phys. Rev. 156, 809 (1967). 27 G. M. Stocks, W. M. Temmerman and B. L. Gyorffy, Phys. Rev. Lett. 41, 339 (1978). 28 J. B. Staunton, B. Gyorffy, G. M. Stocks, and J. Wadsworth, J. Phys. F: Met. Phys. 16, 1761 (1986). 29 J. B. Staunton and B. L. Gyorffy, Phys. Rev. Lett. 69, 371 (1992). 30 I. Galanakis and P. Mavropoulos, Phys. Rev. B 67, 104417 (2003). 31 I. D. Hughes, M. Daene, A. Ernst, W. Hergert, M. Lueders, J. B. Staunton, Z. Szotek and W. M. Temmerman, New J. Phys. 10, 063010, (2008). (Here we found that the large insulating gaps of the transition metal oxides are unchanged by the loss of magnetic order above TN.) 32 L. Chioncel, E. Arrigoni, M. I. Katsnelson and A. I. Lichtenstein, Phys. Rev. Lett. 96, 137203, (2006). 33 M. I. Katsnelson, V. Yu. Irkhin,L. Chioncel, A. I. Lichtenstein and R. A. de Groot, Rev. Mod. Physics 80, 318, (2008). 34 S. A. Hatfield and G. R. Bell, Surf. Sci. 61, 5368 (2007). 35 S. A. Hatfield, J. D. Aldous, and G. R. Bell, Appl. Surf. Sci. 225, 3567 (2009). 36 M. Grundmann, Phys. Stat. Sol. B 248, 805 (2011). 37 S. Mollet and S. J. Jenkins, J. Phys. Condens. Matt. 19, 315214 (2007). 38 S. J. Jenkins, Phys. Rev. B Rapid Comm. 82, 020403 (2010).
URI:	http://wrap.warwick.ac.uk/id/eprint/42756

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