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Showing 1 to 8 of 8 for “"internal magnetic field"”.
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Experimental Study of Tricritical Phenomena in the Metamagnet Ferrous-Chloride
… and heat capacity in constant applied field C(,H(,a)) have been simultaneously determined for the metamagnet FeCl(,2). Since (theta)(,F) is proportional to magnetization we are able, for the first time, to express both C(,H(,a)) and (theta)(,F) as functions of internal magnetic field …
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Mössbauer studies of photsynthetic reaction centers from Rhodopseudomonas sphaeroides R-26
"Zero field Mossbauer measurements on 57Fe-enriched reaction centers (RCs) differing in ubiquinone content, detergent, oxidation state, or the presence of o-phenanthroline all show a single quadrupole doublet of similar splitting 6EQ, center shift 0, and temperature dependence. The results are …
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Experimental study of tricritical phenomena in the metamagnet ferrous chloride (FeCl₂)
… OF and heat capacity in constant applied field CHa have been simultaneously determined for the metamagnet Ha FeC12, Since OF is proportional to magnetization we are able, for the first time, to express both CHa and OF as functions of internal magnetic field along different isotherms. …
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The Mossbauer effect in iron under very high pressure
… of the normal six lines characteristic of ferromagnetic, body-centered cubic iron. The internal magnetic field at the nucleus H decreases linearly with pressure; ~ = -1.6 x 10-4 kilobar-l , o where H is the field at atmospheric pressure. The center of gravity of o the spectrum shifts with …
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Study of the earth's thermal history and magnetic field evolution using geodynamical models and geochemical constraints
… the mantle dictate the generation of the Earth's internal magnetic field and its evolution through time. In this dissertation, I study scenarios for the thermal and magnetic evolution of the Earth, using numerical simulations for mantle convection and implementing recent geochemical models for the …
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Submillimetre Studies of Pre-stellar and Starless Cores in the Ophiuchus, Taurus and Cepheus Molecular Clouds
… all are virially bound in the absence of an internal magnetic field. The magnetic field strengths required to bring our cores into virial equilibrium are consistent with those measured in dense gas in Taurus. In Cepheus, we compare starless cores in the regions L1147/58, L1172/74, L1251 and …
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Atmospheric temperature structure in the RoAp stars
… earth elements. They have strong global dipole magnetic fields with effective strengths of up to a few thousand gausses. Stars showing these phenomena cover the spectral range B8p to F0 V-IV. About 20 years ago rapid non-radial pulsations were discovered in the coolest members of the CP2 group, …
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Characterization of catalyst pellets using NMR and MRI: MRI, diffusion and relaxation measurements of liquid imbibed in alumina and titania extrudates
… of catalyst pellets are studied using Nuclear Magnetic Resonance (NMR) and Magnetic Resonance Imaging (MRI) techniques with the aim of characterizing mass transport in the pellets and exploring the presence of spatial heterogeneities formed in the manufacturing process. Measurements have been …