Magnetism in Mn-nanowires and -clusters as δ-doped layers in group IV semiconductors (Si, Ge)

Simov, K. R.; Glans, P. -A.; Jenkins, C. A.; Liberati, M.; Reinke, P.

doi:10.1063/1.4996299

Title: Magnetism in Mn-nanowires and -clusters as δ-doped layers in group IV semiconductors (Si, Ge)

Journal Article · Thu Jan 18 00:00:00 EST 2018 · APL Materials

DOI:https://doi.org/10.1063/1.4996299· OSTI ID:1485072

Simov, K. R. ^[1]; Glans, P. -A. ^[2]; Jenkins, C. A. ^[2]; Liberati, M. ^[2];

^[1]

Univ. of Virginia, Charlottesville, VA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Mn doping of group-IV semiconductors (Si/Ge) is achieved by embedding nanostructured Mn-layers in group-IV matrix. The Mn-nanostructures are monoatomic Mn-wires or Mn-clusters and capped with an amorphous Si or Ge layer. The precise fabrication of δ-doped Mn-layers is combined with element-specific detection of the magnetic signature with x-ray magnetic circular dichroism. The largest moment (2.5 μ_B/Mn) is measured for Mn-wires with ionic bonding character and a-Ge overlayer cap; a-Si capping reduces the moment due to variations of bonding in agreement with theoretical predictions. The moments in δ-doped layers dominated by clusters is quenched with an antiferromagnetic component from Mn–Mn bonding.

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Research Organization:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1485072

Alternate ID(s):: OSTI ID: 1417420

Journal Information:: APL Materials, Vol. 6, Issue 1; ISSN 2166-532X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (35)

Surface effects in Mn L3,2 x-ray absorption spectra from (Ga,Mn)As Edmonds, K. W.; Farley, N. R. S.; Campion, R. P. Applied Physics Letters, Vol. 84, Issue 20 https://doi.org/10.1063/1.1751619	journal	May 2004
Manganese Nanostructures on Si(100)(2 × 1) Surfaces: Temperature-Driven Transition from Wires to Silicides Nolph, C. A.; Simov, K. R.; Liu, H. The Journal of Physical Chemistry C, Vol. 114, Issue 46 https://doi.org/10.1021/jp105620d	journal	October 2010
Oscillatory Magnetic Anisotropy in One-Dimensional Atomic Wires Gambardella, P.; Dallmeyer, A.; Maiti, K. Physical Review Letters, Vol. 93, Issue 7 https://doi.org/10.1103/physrevlett.93.077203	journal	August 2004
Surface characterization of ${Mn}_{x} {Ge}_{1 - x}$ and ${Cr}_{y} {Mn}_{x} {Ge}_{1 - x - y}$ dilute magnetic semiconductors Gambardella, P.; Claude, L.; Rusponi, S. Physical Review B, Vol. 75, Issue 12 https://doi.org/10.1103/physrevb.75.125211	journal	March 2007
Guided Self-Assembly of Mn Wires on the Si(100)(2 × 1) Surface Simov, Kiril R.; Nolph, Christopher A.; Reinke, Petra The Journal of Physical Chemistry C, Vol. 116, Issue 2 https://doi.org/10.1021/jp206021r	journal	January 2012
How to fabricate a defect free Si(001) surface Hata, K.; Kimura, T.; Ozawa, S. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 18, Issue 4 https://doi.org/10.1116/1.582482	journal	July 2000
Comparison of the magnetic properties of GeMn thin films through Mn L-edge x-ray absorption Ahlers, S.; Stone, P. R.; Sircar, N. Applied Physics Letters, Vol. 95, Issue 15 https://doi.org/10.1063/1.3232245	journal	October 2009
Spinodal nanodecomposition in semiconductors doped with transition metals Dietl, T.; Sato, K.; Fukushima, T. Reviews of Modern Physics, Vol. 87, Issue 4 https://doi.org/10.1103/revmodphys.87.1311	journal	November 2015
Achieving high Curie temperature in (Ga,Mn)As Wang, M.; Campion, R. P.; Rushforth, A. W. Applied Physics Letters, Vol. 93, Issue 13 https://doi.org/10.1063/1.2992200	journal	September 2008
Bonding geometry of Mn-wires on the Si(100)(2×1) surface Nolph, C. A.; Liu, H.; Reinke, P. Surface Science, Vol. 605, Issue 13-14 https://doi.org/10.1016/j.susc.2011.04.017	journal	July 2011
X-ray absorption study of the electronic structure of Mn-doped amorphous Si Zeng, Li; Huegel, A.; Helgren, E. Applied Physics Letters, Vol. 92, Issue 14 https://doi.org/10.1063/1.2908050	journal	April 2008
Atomic Structure of Mn Wires on Si(001) Resolved by Scanning Tunneling Microscopy Fuhrer, A.; Rueß, F. J.; Moll, N. Physical Review Letters, Vol. 109, Issue 14 https://doi.org/10.1103/physrevlett.109.146102	journal	October 2012
Atomic-scale nanowires: physical and electronic structure Bowler, D. R. Journal of Physics: Condensed Matter, Vol. 16, Issue 24 https://doi.org/10.1088/0953-8984/16/24/r01	journal	June 2004
Direct observation of the lattice sites of implanted manganese in silicon da Silva, Daniel José; Wahl, Ulrich; Correia, João Guilherme Applied Physics A, Vol. 122, Issue 3 https://doi.org/10.1007/s00339-016-9724-4	journal	March 2016
Confinement and integration of magnetic impurities in silicon Rueß, Frank J.; El Kazzi, Mario; Czornomaz, Lukas Applied Physics Letters, Vol. 102, Issue 8 https://doi.org/10.1063/1.4792350	journal	February 2013
Epitaxy of Mn on Si(001): Adsorption, surface diffusion, and magnetic properties studied by density-functional theory Hortamani, Mahbube; Wu, Hua; Kratzer, Peter Physical Review B, Vol. 74, Issue 20 https://doi.org/10.1103/physrevb.74.205305	journal	November 2006
High-Curie-temperature ferromagnetism in self-organized Ge1−xMnx nanocolumns Jamet, Matthieu; Barski, André; Devillers, Thibaut Nature Materials, Vol. 5, Issue 8 https://doi.org/10.1038/nmat1686	journal	July 2006
Spatial Chemical Inhomogeneity and Local Electronic Structure of Mn-Doped Ge Ferromagnetic Semiconductors Kang, J. -S.; Kim, G.; Wi, S. C. Physical Review Letters, Vol. 94, Issue 14 https://doi.org/10.1103/physrevlett.94.147202	journal	April 2005
Challenges for semiconductor spintronics Awschalom, David D.; Flatté, Michael E. Nature Physics, Vol. 3, Issue 3 https://doi.org/10.1038/nphys551	journal	March 2007
Distinct local electronic structure and magnetism for Mn in amorphous Si and Ge Zeng, Li; Cao, J. X.; Helgren, E. Physical Review B, Vol. 82, Issue 16 https://doi.org/10.1103/physrevb.82.165202	journal	October 2010
Making Nonmagnetic Semiconductors Ferromagnetic Ohno, H. Science, Vol. 281, Issue 5379 https://doi.org/10.1126/science.281.5379.951	journal	August 1998
Exploring the microscopic origin of magnetic anisotropies with X-ray magnetic circular dichroism (XMCD) spectroscopy Stöhr, J. Journal of Magnetism and Magnetic Materials, Vol. 200, Issue 1-3 https://doi.org/10.1016/S0304-8853(99)00407-2	journal	October 1999
X-ray magnetic circular dichroism in (Ge,Mn) compounds: Experiments and modeling Tardif, Samuel; Titov, Andrey; Arras, Emmanuel Journal of Magnetism and Magnetic Materials, Vol. 354 https://doi.org/10.1016/j.jmmm.2013.10.037	journal	March 2014
The 2p absorption spectra of 3d transition metal compounds in tetrahedral and octahedral symmetry Laan, G. van der; Kirkman, I. W. Journal of Physics: Condensed Matter, Vol. 4, Issue 16 https://doi.org/10.1088/0953-8984/4/16/019	journal	April 1992
A Group-IV Ferromagnetic Semiconductor: MnxGe1-x Park, Y. D. Science, Vol. 295, Issue 5555 https://doi.org/10.1126/science.1066348	journal	January 2002
Exchange bias in a ferromagnetic semiconductor induced by a ferromagnetic metal: Fe/(Ga,Mn)As bilayer films studied by XMCD measurements and SQUID magnetometry Olejnik, K.; Wadley, P.; Haigh, J. A. Physical Review B, Vol. 81, Issue 10 https://doi.org/10.1103/physrevb.81.104402	journal	March 2010
Density-Functional Theory Study of Half-Metallic Heterostructures: Interstitial Mn in Si Wu, Hua; Kratzer, Peter; Scheffler, Matthias Physical Review Letters, Vol. 98, Issue 11 https://doi.org/10.1103/physrevlett.98.117202	journal	March 2007
Creation of an Antiferromagnetic Exchange Spring Scholl, A.; Liberati, M.; Arenholz, E. Physical Review Letters, Vol. 92, Issue 24 https://doi.org/10.1103/physrevlett.92.247201	journal	June 2004
Interface structure and magnetism of magnetic tunnel junctions with a ${Co}_{2} Mn Si$ electrode Schmalhorst, J.; Kämmerer, S.; Sacher, M. Physical Review B, Vol. 70, Issue 2 https://doi.org/10.1103/physrevb.70.024426	journal	July 2004
Structure of Self-Assembled Mn Atom Chains on Si(001) Villarreal, R.; Longobardi, M.; Köster, S. A. Physical Review Letters, Vol. 115, Issue 25 https://doi.org/10.1103/physrevlett.115.256104	journal	December 2015
Ge _1−x Mn _x heteroepitaxial quantum dots: Growth, morphology, and magnetism Kassim, J.; Nolph, C.; Jamet, M. Journal of Applied Physics, Vol. 113, Issue 7 https://doi.org/10.1063/1.4792221	journal	February 2013
Spintronics: fundamentals and applications Zutic, Igor; Fabian, Jaroslav; Sarma, S. Das Universität Regensburg https://doi.org/10.5283/epub.1823	text	January 2004
Achieving High Curie Temperature in (Ga,Mn)As Wang, M.; Campion, R. P.; Rushforth, A. W. arXiv https://doi.org/10.48550/arxiv.0808.1464	text	January 2008
Atomic structure of Mn wires on Si(001) resolved by scanning tunneling microscopy Fuhrer, A.; Rueß, F. J.; Moll, N. arXiv https://doi.org/10.48550/arxiv.1205.0466	text	January 2012
X-ray magnetic circular dichroism in (Ge,Mn) compounds: experiments and modeling Tardif, Samuel; Titov, Andrey; Arras, Emmanuel arXiv https://doi.org/10.48550/arxiv.1210.1991	text	January 2012