The Structure of Au-Li and Pt-Li Complexes in Silicon

Identification of the Gold-Lithium Defect L1 in Silicon with the Trigonal Centre Au2--(Li+)3 by Electrical, Optical and Magnetic Resonance Spectroscopy

“…4 a typical EPR spectrum of silicon after Au and Li diffusion is presented. The four lines in group I are due to the trigonal Au±Li complex and show the hyperfine splitting of 197 Au (I = 3/2, 100%) [9]. In group II resonances of the orthorhombic Au±Li defect are measured.…”

“…In group II resonances of the orthorhombic Au±Li defect are measured. Due to a small but intended misalignment of the sample with respect to the static magnetic field the degeneracy of two defect orientations is lifted [9]. The two lines of group III arise from the hyperfine splitting of 31 P (I = 1/2, 100%).…”

“…Alteheld et al performed Electron Paramagnetic Resonance (EPR) and Electron Nuclear Double Resonance (ENDOR) investigations of silicon doped with gold and lithium [9]. Two different Au±Li defects were found with orthorhombic and trigonal symmetry, which can be described as Au 0 ±Li + and Au 2± ±(Li + ) 3 , respectively, where Li + is interstitial.…”

“…In this paper we identify the Au±Li complex L1 described by Sveinbjo È rnsson et al [8] with the Au±Li defect with trigonal symmetry analysed by Alteheld et al [9]. The correlation is achieved by performing EPR, PL and DLTS measurements using two sets of samples with different concentrations of Au and Li to enable the application of two of the measurement techniques on each of the samples.…”

The Interaction of Hydrogen with Deep Level Defects in Silicon

“…TM impurities have large covalent radii and, like H, readily react with dopants and other defects, as well as complexing with other TM centres [184,188,189,190,191,192,193]. They are readily attracted to aggregates of vacancies (micro-voids) and precipitate at stacking faults and along dislocations [194].…”