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Title

EPR studies on an ``unperturbed'' CrO43- center in K2SO4 crystals

Authors
Ravi Sekhar, Y.
Published in Journal of Chemical Physics. 1985, vol. 82, no. 2, p. 657-647
Abstract Electron paramagnetic resonance of CrO doped K2SO crystals has been studied after x-irradiation at 77 K. The resulting species, a CrO center, has the principal g values gx=1.8743, gy=1.8507, and gz=1.9386. The EPR data indicate a small distortion of CrO tetrahedra. A temperature variation study of the spectra in the range 1.6–77 K shows that they broaden rapidly above 10 K and no motionally averaged spectrum is observed. The experimental results are discussed in terms of several effects including a possible Jahn–Teller effect.
Keywords Electron spin resonancePotassium sulfatesChromium oxidesAnionsDoped materialsRadiolysisX radiationElectronic structure
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Research group Groupe Bill
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RAVI SEKHAR, Y., BILL, Hans. EPR studies on an ``unperturbed'' CrO43- center in K2SO4 crystals. In: Journal of Chemical Physics, 1985, vol. 82, n° 2, p. 657-647. https://archive-ouverte.unige.ch/unige:3100

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Deposited on : 2009-09-21

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