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ESR spectra of photoinduced defects in MX chain solids (CROSBI ID 121792)

Prilog u časopisu | kratko priopćenje | međunarodna recenzija

Saxena, Avadh B. ; Batistić, Ivo ; Alouani, M. ; Bishop, Alan R. ESR spectra of photoinduced defects in MX chain solids // Synthetic metals, 56 (1993), 2-3; 3329-3334. doi: 10.1016/0379-6779(93)90123-E

Podaci o odgovornosti

Saxena, Avadh B. ; Batistić, Ivo ; Alouani, M. ; Bishop, Alan R.

engleski

ESR spectra of photoinduced defects in MX chain solids

The authors calculate the electron spin resonance (ESR) spectra associated with the spin carrying nonlinear excitations such as neutral solitons, triplet excitons as well as electron and hole polarons for halogen-bridged mixed-valence transition metal (MX: M=Pt, X=Cl, Br, I) linear chain materials within a discrete, 3/4-filled, two-band, tight-binding extended Peierls-Hubbard model. The strongly distorted and localized CDW material, PtCl, is contrasted with the weak CDW, delocalized material, PtBr. The hyperfine structure in the ESR spectra arises from the spin density on the Pt atoms while the superhyperfine structure is attributed to a small spin density present on the halogen sublattice. These theoretical predictions are compared with the recent experimental ESR data on photoinduced defects in PtX materials.

PtCl ; PtBr ; PtI ; ESR spectra ; photoinduced defects ; MX chain solids ; solitons ; triplet excitons ; hyperfine structure ; spin density

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Podaci o izdanju

56 (2-3)

1993.

3329-3334

objavljeno

0379-6779

10.1016/0379-6779(93)90123-E

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Fizika

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