Magnetic Raman optical activity and Raman electron paramagnetic resonance

نویسنده

  • Laurence D. Barron
چکیده

All molecules in a magnetic field parallel to the incident light beam show a small difference in the intensity of Raman scattering at 900 in right and left circularly polarized incident light. The most interesting effects occur in vibrational resonance Raman scattering from odd—electron transition metal halides, and in pure electronic resonance Raman scattering from both odd— and even—electron molecules. These effects originate in Raman transitions between components of Zeeman—split degenerate levels, and provide information about the magnetic structure of the ground and low— lying excited levels (in particular the sign of the g—value and the ordering of magnetic sub—states).

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optical detection of transition metal ion electron paramagnetic resonance by coherent Raman spectroscopy

Coherent Raman scattering in combination with optical heterodyne detection provides an attractive new technique for the measurement of electron paramagnetic resonance (EPR). The technique is applicable to both electronic ground and excited states. In contrast to conventional ODMR techniques, it monitors the precessing magnetisation and produces phase-sensitive spectra. We have demonstrated the ...

متن کامل

Coherent Raman detected electron spin resonance spectroscopy of metalloproteins: linking electron spin resonance and magnetic circular dichroism.

The simultaneous excitation of paramagnetic molecules with optical (laser) and microwave radiation in the presence of a magnetic field can cause an amplitude, or phase, modulation of the transmitted light at the microwave frequency. The detection of this modulation indicates the presence of coupled optical and ESR transitions. The phenomenon can be viewed as a coherent Raman effect or, in most ...

متن کامل

Magnetic and optical anisotropy of Clostridium pasteurianum rubredoxin from optically detected electron paramagnetic resonance

The high-spin Fe~III!-center of oxidized rubredoxin from Clostridium pasteurianum shows a complicated, temperature-dependent EPR spectrum. We combine conventional EPR spectroscopy with optically detected EPR ~ODEPR! to elucidate the electronic structure of this protein metal center. The ODEPR experiment, which can be considered as coherent Raman scattering or modulated magnetic circular dichroi...

متن کامل

Electron spin resonance and optical characterization of defects in microcrystalline silicon

Electron spin resonance (ESR), constant photocurrent method (CPM), photothermal de ̄ection spectroscopy (PDS), Raman and IR spectroscopy have been used to measure microcrystalline silicon ®lms. Besides standard defects with a g-value of 2.0055, new defects with a g-value 2.0030 have been created during annealing this material. Proportionality between the subgap optical absorption and ESR spin de...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006