NDLI: 2-MM waveband EPR macrospin probe method in the investigation of viscous condensed systems

Content Provider	IEEE Xplore Digital Library
Author	Krinichnyi, V.I. Grinberg, O.Ya.
Copyright Year	1994
Description	Author affiliation: Institute of Chemical Physics RAS (Krinichnyi, V.I.)
Abstract	Summary form only given. The suggested macrospin probe method based on the effect of a massive paramagnetic reorientation in a strong magnetic field allows one to study various condensed systems more correctly and accurately. The reorientational effect of a single crystal of an ion-radical salt based on dibenzotetrathiafulvalene (DBTTF)/sub 3/PtBr/sub 6/ of 5.10/sup - 5/ mm/sup 3/ volume volume in the solution (1:10) of nujol and nitroxide radical (10/sup -3/ M) in tery-buthylbenzene at magnetic field of H /spl tilde =/ 5 T is considered in the terms of one-point-fixed oscillator free turn in a dissipative system. The mechanical relaxation times of the macrospin probe rotation were determined and viscosities of its environment were evaluated near the melting temperature of the model system, when the phase transition is realized. Accompanied by the microspin probe, the method was shown to give the possibility to register separately or simultaneously both elastic deformation and a viscous flow of the same -matrix at the same temperature and time. The efficienty of the method, namely sensitivity, accuracy etc., is increased with a strength of magnetic field according to H/sup 5/ power law. Therefore, 2-mm wave band EPR is the exactly appropriate technique for the detailed investigation of various properties of condensed systems.
Starting Page	668
Ending Page	668
File Size	76697
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.836091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Viscosity Paramagnetic resonance Temperature Paramagnetic materials Magnetic fields Probes Chemicals Physics Oscillators
Content Type	Text
Resource Type	Article

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