Experimental insight into the magnetic and electrical properties of amorphous Ge_1-xMn_x

References

• Park YD, Hanbicki AT, Erwin SC, et al. A Group-IV ferromagnetic semiconductor: MnxGe1-x. Science. 2002;295:651–654.10.1126/science.1066348
   PubMed Web of Science ®Google Scholar
• Jamet M, Barski A, Devillers T, et al. High-Curie-temperature ferromagnetism in self-organized Ge1− xMnx nanocolumns. Nat Mater. 2006;5:653–659.10.1038/nmat1686
   PubMed Web of Science ®Google Scholar
• Ottaviano L, Continenza A, Profeta G, et al. Room-temperature ferromagnetism in Mn-implanted amorphous Ge. Phys Rev B. 2011;83:134426.10.1103/PhysRevB.83.134426
   Web of Science ®Google Scholar
• Yada S, Sugahara S, Tanaka M. Magneto-optical and magnetotransport properties of amorphous ferromagnetic semiconductor Ge1−xMnx thin films. Appl Phys Lett. 2008;93:193108.10.1063/1.3023070
   Web of Science ®Google Scholar
• Li H, Wu Y, Guo Z, et al. Magnetic and electrical transport properties of Ge1−xMnx thin films. J Appl Phys. 2006;100:103908.10.1063/1.2375015
   Web of Science ®Google Scholar
• Yu SS, Anh TTL, Ihm YE, et al. Magneto-transport properties of amorphous Ge1−xMnx thin films. Curr Appl Phys. 2006;6:545–548.10.1016/j.cap.2005.11.057
   Web of Science ®Google Scholar
• Morgunov RB, Dmitriev AI, Kazakova OL. Percolation ferromagnetism and spin waves in Ge: Mn thin films. Phys Rev. 2009;80:085205.10.1103/PhysRevB.80.085205
   Web of Science ®Google Scholar
• Xiu F. Magnetic Mn-doped Ge nanostructures. ISRN condens matter phys. 2012;2012:198590.
   Google Scholar
• Chien CL, Liou S-H, Kofalt D, et al. Magnetic properties of FexCu100− x solid solutions. Phy Rev B. 1986;33:3247.10.1103/PhysRevB.33.3247
   Web of Science ®Google Scholar
• Ahmed N, Hicks TJ. Magnetic and atomic correlations in dilute copper-manganese alloys. J Phys F: Met Phys. 1975;5:2168.10.1088/0305-4608/5/11/028
   Google Scholar
• Bhatt RN, Berciu M, Kennett MP, et al. Diluted magnetic semiconductors in the low carrier density regime. J supercon. 2002;15:71–83.10.1023/A:1014031327996
   Google Scholar
• Kaminski A, Das Sarma S. Polaron percolation in diluted magnetic semiconductors. Phys Rev Lett. 2002;88:247202.10.1103/PhysRevLett.88.247202
   PubMed Web of Science ®Google Scholar
• Bednarski H, Jozef S. Bound-magnetic-polaron molecule in diluted magnetic semiconductors. J Phys: Condens Matter. 2012;24:235801.
   PubMed Web of Science ®Google Scholar
• Massenet O, Daver H, Geneste J. Magnetic ordering and magnetization in amorphous Fe-Ge films. J Phys Colloq. 1974;35:C4–279.
   Google Scholar
• Mott NF, Davis EA. Electronic processes in non-crystalline materials. Oxford: OUP; 2012.
   Google Scholar
• Korenblit IYa, Shender EF. Ferromagnetism of disordered systems. Sov Phys Usp. 1978;21:832.10.1070/PU1978v021n10ABEH005686
   Google Scholar
• Cultrera A, Amato G, Boarino L, et al. A modified cryostat for photo-electrical characterization of porous materials in controlled atmosphere at very low gas dosage. AIP Adv. 2014;4:087134.10.1063/1.4894074
   Web of Science ®Google Scholar
• Shklovskii BI, Efros AL. Electronic properties of doped semiconductors. New York, NY: Springer-Verlag Inc; 1984.10.1007/978-3-662-02403-4
   Google Scholar
• Mott NF. Conduction in non-crystalline materials: III. localized states in a pseudogap and near extremities of conduction and valence bands. Phil Mag. 1969;19:835–852.10.1080/14786436908216338
   Google Scholar
• Cullity BD, Graham CD. Introduction to magnetic materials. Piscataway (NJ): John Wiley; 2011.
   Google Scholar
• Hansen MF, Mørup S. Estimation of blocking temperatures from ZFC/FC curves. J Magn Magn Mater. 1999;203:214–216.10.1016/S0304-8853(99)00238-3
   Web of Science ®Google Scholar
• Bean CP, Livingston JD. Superparamagnetism. J Appl Phys. 1959;30:S120–S129.10.1063/1.2185850
   Web of Science ®Google Scholar
• Li A-P, Wendelken JF, Shen J, et al. Magnetism in MnxGe1− x semiconductors mediated by impurity band carriers. Phy Rev B. 2005;72:19520510.1103/PhysRevB.72.195205
   Web of Science ®Google Scholar
• Kumar S, Paschoal W Jr, Johannes A, et al. Magnetic polarons and large negative magnetoresistance in GaAs nanowires implanted with Mn ions. Nano Lett. 2013;13:5079–5084.10.1021/nl402229r
   PubMed Web of Science ®Google Scholar
• Paschoal W Jr, Kumar S, Borschel C, et al. Hopping conduction in Mn ion-implanted GaAs nanowires. Nano Lett. 2012;12:4838–4842.10.1021/nl302318f
   PubMed Web of Science ®Google Scholar
• Pinto N, Morresi L, Ficcadenti M, et al. Magnetic and electronic transport percolation in epitaxial Ge1–xMnx films. Phy Rev B. 2005;72:165203.10.1103/PhysRevB.72.165203
   Web of Science ®Google Scholar
• Das Sarma S, Hwang EH, Kaminski A. Temperature-dependent magnetization in diluted magnetic semiconductors. Phy Rev B. 2003;67:155201.10.1103/PhysRevB.67.155201
   Web of Science ®Google Scholar