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- 1. Mater. Sci. Eng. B 126, 222-225 (2006) , “Magnetic properties of a new spintronic material—GaN:Fe”, H. Przybylińska, A. Wolos, M. Kiecana, M. Sawicki, T. Dietl, H. Malissa, C. Simbrunner, M. Wegscheider, H. Sitter, K. Rumpf, P. Granitzer, H. Krenn and W. JantschWe report on metal-organic chemical vapour deposition growth of GaN:Fe and its characterization by means of high-resolution X-ray diffraction, secondary ion mass spectroscopy, electron spin resonance, and magnetization measurements. Electron spin resonance studies demonstrate the existence of Fe in... (Read more)
- 2. Phys. Rev. B 74, 165202 (2006) , “Structural and electronic properties of Fe3+ and Fe2+ centers in GaN from optical and EPR experiments”, E. Malguth, A. Hoffmann, W. Gehlhoff, O. Gelhausen, M. R. Phillips, and X. XuThis work provides a consistent picture of the structural, optical, and electronic properties of Fe-doped GaN. A set of high-quality GaN crystals doped with Fe at concentrations ranging from 5×1017 cm3 to 2×1020 cm3 is... (Read more)
- 3. Phys. Rev. B 74, 054111 (2006) , “EPR investigation of iron-related centers in 57Fe-doped KTaO3”, P. G. Baranov, A. G. Badalyan, D. V. Azamat, V. A. Trepakov, A. P. Bundakova, E. A. Ruzanova, V. S. Vikhnin, H. Hesse, and S. E. KapphanThree dominant iron centers are studied in the as-grown 57Fe-doped single KTaO3 crystals. For each of the centers, which were labeled as rhombic FeTa3+ and two axial Fe-related centers FeK3+-OI and (Fe). The... (Read more)
- 4. Phys. Rev. B 73, 184105 (2006) , “Iron-oxygen vacancy defect association in polycrystalline iron-modified PbZrO3 antiferroelectrics: Multifrequency electron paramagnetic resonance and Newman superposition model analysis”, Hrvoje Metri, Rüdiger-A. Eichel, Klaus-Peter Dinse, Andrew Ozarowski, Johan van Tol, Louis Claude Brunel, Hans Kungl, Michael J. Hoffmann, Kristin A. Schönau, Michael Knapp, and Hartmut FuessBy utilizing multifrequency electron paramagnetic resonance (EPR) spectroscopy, the iron functional center in Fe3+-modified polycrystalline lead zirconate (PbZrO3) was studied. The single phase polycrystalline sample remained orthorhombic and antiferroelectric down to 20 K as... (Read more)
- 5. Physica B 376-377, 486 (2006) , “Preferential substitution of Fe on physically equivalent Ga sites in GaN”, W. Gehlhoff, D. Azamat, U. Haboeck, A. HoffmannThe EPR spectra of Fe3+ in high-quality thick freestanding hydride vapor phase grown GaN have been studied in the X- and Q-band. A complex resonance pattern with numerous lines of different intensities provided by three different defects is observed for these nearly stress-free iron-doped samples.... (Read more)
- 6. Superlatt. Microstruct. 39, 247-256 (2006) , “Optical and morphological features of bulk and homoepitaxial ZnO”, R. Yakimova, G.R. Yazdi, N.T. Son, I. Ivanov, M. Syväjärvi, S. Sun, G. Tompa, A. Kuznetsov , B. SvenssonZnO substrate crystals from two different sources, and epitaxial layers have been studied by SEM, AFM, photoluminescence and EPR. Although fabricated by the same growth principle, i.e. the hydrothermal technique, the substrates differ in terms of purity and structural quality. In the PL spectra of... (Read more)
- 7. Physica B 302-303, 233-238 (2001) , “Complexes of Gold and Platinum with Hydrogen in Silicon”, P. T. Huy and C. A. J. AmmerlaanThree centers that involve gold or platinum and hydrogen have been observed in n-type hydrogenated silicon by electron paramagnetic resonance. The first two centers, labeled Si-NL63 and Si-NL64, were detected in the gold-doped samples revealing hyperfine interaction with two gold atoms for the... (Read more)
- 8. Solid State Commun. 101, 611-615 (1997) , “Identification of iron transition group trace impurities in GaN bulk crystals by electron paramagnetic resonance”, P. G. Baranov, I. V. Ilyin and E. N. MokhovWe report on the observation of electron paramagnetic resonance of iron, manganese and nickel trace impurities in bulk GaN crystals grown by the sublimation sandwich method. The resolved hyperfine structure due to interaction with 55Mn (I = 5/2) nuclei has been observed in GaN, allowing unambiguous... (Read more)
- 9. Appl. Phys. A 30, 1 (1983) , “Transition Metals in Silicon”, E. R. Weber.A review is given on the diffusion, solubility and electrical activity of 3d transition metals in silicon. Transition elements (especially, Cr, Mn, Fe, Co, Ni, and Cu) diffuse interstitially and stay in the interstitial site in thermal equilibrium at the diffusion temperature. The parameters of the liquidus curves are identical for the Si:Ti — Si:Ni melts, indicating comparable silicon-metal interaction for all these elements. Only Cr, Mn, and Fe could be identified in undisturbed interstitial sites after quenching, the others precipitated or formed complexes. The 3d elements can be divided into two groups according to the respective enthalpy of formation of the solid solution. The distinction can arise from different charge states of these impurities at the diffusion temperature. For the interstitial 3d atoms remaining after quenching, reliable energy levels are established from the literature and compared with recent calculations. (Read more)
- 10. Physica 116B, 306 (1983) , “ESR of Fe-S Pairs in Silicon”, O. F. Schirmer.The ESR of a new Fe-S center in Si is reported. It is shown that the g-values of three of the known Fe-S pairs are determined by exchange interaction of the angular momentum of Feio with that of a nearby S = 1/2 ion, which is likely to be S+ or (S-S)+. The analysis uses an analogy to the O2--centers in the alkali halides. Orbach relaxation of the ESR of the new Fe-S center shows that an excited state lines 8.4 meV above the groundstate. (Read more)
- 11. Solid State Commun. 8, 45-47 (1970) , “A note on the splitting of the ( →← -) line in the ESR spectrum of Fe3+ in ZnO”, I. D. Campbell , J. O. CopeIons of spin which occupy inequivalent cation sites in a wurtzite lattice show ESR line splitting. An analytical expression is derived which describes the dependence of the splitting of the ( →← -) line on crystal orientation. This expression provides a convenient method of deducing... (Read more)
- 12. Phys. Rev. 137, A1520 (1965) , “Paramagnetic Resonance Study of a Deep Donor in Silicon”, G. W. Ludwig.The impurity sulfur acts as a double donor in silicon. Assuming the ion to be substitutional, S+ is analogous to neutral phosphorus, except that the binding energy of the donor electron is much greater. Here we report paramagnetic resonance absorption of S+, including a... (Read more)Si| EPR| Iron S Sulfur U donor n-type .inp files: Si/Sulfur Si/FeS Si/Sulfur2 Si/Sulfur3 | last update: Takahide Umeda
- 13. Solid State Physics 13, 223-304 (1962) , Academic Press, New York (Edited by F. Seitz, D. Turnbull) , “Electron Spin Resonance in Semiconductors”, G. W. Ludwig, H. H. Woodbury.I. Introduction (p.223): II. The Resonance Technique (p.226): 1. The Spin Hamiltonian (p.226), 2. The Spin Resonance Spectrum (p.231), 3. Experimental Techniques (p.237), III. Resonance Studies in Silicon (p.243): 4. Shallow Donor Impurities (p.244), 5. Shallow Acceptor Impurities (p.259), 6. Transition Metal Ions (p.263), 7. Impurity Pairs (p.273), 8. Radiation Damage Centers (p.280), IV.Resonance Studies in Other Semiconductors (p.286): 9. Germanium (p.286), 10. Graphite and Diamond (p.290), 11. Silicon Carbide (p.293), 12. Indium Antimonide and Gallium Phosphide (p.294), 13. Zinc Sulfide and Related Semiconductors (p.295), Acknowledgments (p.304)
- 14. Phys. Rev. 117, 1286 (1960) , “Magnetic Moment of Fe57”, G. W. Ludwig, H. H. Woodbury.An electron-nuclear double resonance study has been made on the spectrum of neutral iron atoms in silicon. These measurements lead to a value of +0.0903±0.0007 nm for the magnetic moment of Fe57. (Read more)
- 15. Phys. Rev. 117, 102 (1960) , “Spin Resonance of Transition Metals in Silicon”, H. H. Woodbury and G. W. LudwigSpin resonance measurements are reported for various charge states of four transition metals in silicon, namely for V++, Cr+, Mn-, Mn++, and Fe0. In each case the g tensor and the hyperfine interaction with the impurity nucleus are isotropic.... (Read more)Si| EPR| Iron Manganese Vanadium .inp files: Si/Mn- Si/Fe Si/Mn4 Si/Vanadium | last update: Masatoshi Sasaki
- 16. Phys. Rev. Lett. 1, 295 (1958) , “Spin of Fe57”, G. W. Ludwig, H. H. Woodbury, R. O. Carlson.The spin of the stable isotope Fe57 has been directly observed to be 1/2 from the electron spin resonance spectrum of iron-doped silicon.Samples were prepared by alloying several milligrams of ironenriched to contain 84.1% Fe57 onto silicon crystals 3mm×3mm×10mm.The iron was... (Read more)
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