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magnetic moment

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Journal Article
Published: 01 May 2004
American Mineralogist (2004) 89 (5-6): 725-747.
... of phase with the magnetic moment of an odd non-self-canceling Fe 3+ -rich layer in the hematite host. The two contact layers and the odd hematite layer form a magnetic substructure with opposite but unequal magnetic moments: a lamellar “ferrimagnetism” made possible by the exsolution. Because...
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Journal Article
Published: 01 April 1968
American Mineralogist (1968) 53 (3-4): 406-415.
...George A. Parks; Salim Akhtar Abstract The effective magnetic moment of Fe 2+ in monoclinic pyroxenes, orthorhombic pyroxenes, cordierite, amphibole, biotite, wolframite and sphalerite calculated from susceptibility data is found to be a variable with values spanning the theoretical range from 4.90...
Journal Article
Published: 01 March 2011
Journal of Environmental and Engineering Geophysics (2011) 16 (1): 1-12.
... as the ratio of the antenna's magnetic moment to the sum of the antenna's core, wire and battery weights. Likewise, power efficiency is defined as the ratio of the antenna's magnetic moment and the antenna's resistive power losses, and volume efficiency is defined as the ratio of the antenna's magnetic moment...
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<b>Magnetic</b> <b>moment</b> induced in sand sample 1 by exposure to a static <b>magnetic</b> f...
in > Geophysics
Published: 05 May 2014
Figure 3. Magnetic moment induced in sand sample 1 by exposure to a static magnetic field of B p = 25     mT at t = 0 . Open circle — before exposure (corresponds to NRM, see text); shaded solid circles — after exposure (corresponds to IRM, see text); inset — zoom
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<b>Magnetization</b> curves (<b>magnetic</b> <b>moment</b>  M  vs. external <b>magnetic</b> field (Tesl...
Published: 01 February 2009
Figure 5. Magnetization curves (magnetic moment M vs. external magnetic field (Tesla)) obtained at room temperature and 5 K for pure ferrihydrite aged for 50 days and ferrihydrites prepared in the presence of phosphate (anion/Fe mole ratio of 3%) or citrate (anion/Fe mole ratio of 1%) aged
Journal Article
Journal: Geophysics
Published: 01 March 1986
Geophysics (1986) 51 (3): 819-832.
... to compute the magnetic moment required to provide a specified ratio of signal to noise (S/N) in the survey data for frequency-domain EM (FEM) and both step-response and impulse-response TEM. This procedure indicates that magnetic moments in the range 10 5 to 5 X 10 6 A.m 2 are necessary for moving...
Journal Article
Published: 01 January 2000
American Mineralogist (2000) 85 (1): 189-193.
...) and isostructural with Mg, Ca, Mn, Ni, and β-Co(OH) 2 , is maintained over the range of temperatures studied. At 10 K, the magnetic structure is ordered antiferromagnetically, with the magnetic moments aligned in the basal plane. The refined Fe 2+ magnetic moment magnitude is 3.50(4) μ B . This magnetic structure...
FIGURES
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( a ) Total <b>magnetic</b> <b>moment</b> as function of the reduced temperature. The sol...
Published: 01 June 2017
Figure 5. ( a ) Total magnetic moment as function of the reduced temperature. The solid lines are the same fits as in Figure 4 . ( b ) Out-of-plane tilt-angle α as function of the reduced temperature. The ilm13 data has been binned so that each data point represents a 17 K temperature interval
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Variation of saturation <b>magnetic</b> <b>moment</b> ( M s  ) with composition for magne...
Published: 01 June 2016
Figure 9 Variation of saturation magnetic moment ( M s ) with composition for magnetic spinels in the system MgAl 2 O 4 –Fe 3 O 4 . Solid squares are values measured on quenched synthetic samples ( Harrison and Putnis 1995 ). Open triangles are M s values calculated from cation occupancies
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Graph showing the net <b>magnetic</b> <b>moment</b> that occurs relative to the compositi...
Published: 01 September 2015
Fig. 3. Graph showing the net magnetic moment that occurs relative to the composition of Po (modified from Wang & Salveson 2005 ).
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<b>Magnetic</b> <b>moment</b> induced in six sand samples by exposure to a static magneti...
in > Geophysics
Published: 05 May 2014
Figure 4. Magnetic moment induced in six sand samples by exposure to a static magnetic field of B p = 25     mT . Open circle — before exposure (corresponds to NRM, see text); black circles — after exposure (corresponds to IRM, see text); gray circles — IRM for samples from
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Comparison of EF laboratory      T  2  *      and <b>magnetic</b> <b>moment</b> after exp...
in > Geophysics
Published: 05 May 2014
Figure 5. Comparison of EF laboratory T 2 * and magnetic moment after exposure to a static field (corresponds to IRM) of B p = 25     mT , for the six sand samples. For samples 1, 3, and 5, results of magnetic moment are shown for both subsamples. Note the break
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Model responses for the same <b>magnetic</b> <b>moment</b> (9,000 m 2 -A), but different ...
Published: 01 March 2014
Figure 1.  Model responses for the same magnetic moment (9,000 m 2 -A), but different loop radii (a  =  200 m, 100 m, 50 m, 10 m, and 3 m). a) Magnetic field decay curves; b) apparent resistivity curves.
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Transmitter loop parameters resulting in a 9,000 m 2 -A <b>magnetic</b> <b>moment</b>.
Published: 01 March 2014
Table 1.  Transmitter loop parameters resulting in a 9,000 m 2 -A magnetic moment.
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Evolution of the total <b>magnetic</b> <b>moment</b> on M1 and M2 in FeGeO 3  as determin...
Published: 01 April 2012
Figure 9 Evolution of the total magnetic moment on M1 and M2 in FeGeO 3 as determined from the neutron diffraction experiments; the solid lines correspond to fits using the phenomenological power law of Blundell et al. (2003) . The dashed line for M2 connects the low- T data. (Color online.)
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Changes in the ratio of the cell parameters and the <b>magnetic</b> <b>moment</b> of hcp-...
Published: 01 May 2010
F igure 1. Changes in the ratio of the cell parameters and the magnetic moment of hcp-Fe as a function of pressure. ( a ) Solid circles represent the c / a ratio from experimental data. ( b ) The solid line represents the change in c / a ratio predicted from ab initio calculations
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The effective <b>magnetic</b> <b>moment</b> μ eff  (in units μ B ) and the molar suscepti...
Published: 01 September 2001
F igure 4. The effective magnetic moment μ eff (in units μ B ) and the molar susceptibility χ m (emu mol −1 ) in an external field of 1 T as a function of temperature (in K) for the different Fe 1− x Mg x SiO 3 samples studied.
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<b>Magnetic</b> <b>moment</b> as a function of volume (pressure) for the troilite and MnP...
Published: 01 April 2001
F ig . 4. Magnetic moment as a function of volume (pressure) for the troilite and MnP-type structures.
Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2001
DOI: 10.1180/EMU-notes.3.13
EISBN: 9780903056502
... magnetic moment. The presence of a magnetic species in a solid solution not only changes its macroscopic properties in fundamental ways but also provides a sensitive probe of the local chemical environment ( Harrison & Putnis, 1999a ). In Part I --> of this chapter we will describe the fundamental...
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Journal Article
Published: 01 February 1989
American Mineralogist (1989) 74 (1-2): 160-176.
... is related to the surface area of the twin boundaries. Because the cation-ordered domains are ferrimagnetic with a strong magnetic moment and the disordered boundaries are probably antiferromagnetic with a weak magnetic moment, the quenched samples are essentially mixtures of two magnetic phases...