| This paper has first summarized the experiment of granular film and theoretical research progress and the present major problem to be solved , has discussed the purpose meaning of this paper on this foundation , has introduced us soon afterwards with magnetic metal -non-magnetic metal material adopt for studying object to co-vapored deposited system such as the FexCu1-x of different Fe content x granular film sample, carrying out annealing handling for some of samples , Using x ray diffraction instrument XRD), , scanning electrical microscopic (SEM), vibrating sample magnetometer(VSM) the tiny structure for sample , appearance and the magnetic result that can carry out detection. We Have analysed FeCu granular film to coercivity and particle activation energy, can establish physical model with the change relation of Fe content, have discussed coercivity and the granular interaction in FeCu granular film with the change law of Fe content, have discussed the influence of granular couple interaction on coerciv ity.Major work and conclusion are as follows:1 Under different technology condition, preparation FeCu granular film is series, is measured with x ray diffraction instrument for its tiny structure. Show as a result: (1) carrying out little angle scope measure for FeCu sample, discover that sample is two sets of diffraction peaks, justCu(311), Fe(311) is adjacent have obvious limit just, explanation is under room temperature, Fe and Cu is not solid solution. (2) as do not the diffraction peak of annealing and annealing sample Fe10Cu90 analyse, discover the diffraction peak of annealing sample to strengthen, explain annealing to promote, sample appearance split. (3) use Scherrer formula as do not the Fe of annealing sample Fe10Cu90 and Fe3oCu7o Fe(l11) with Cu(l11) diffraction peak carry out the half analysis of peak width, calculation gets the size of crystal grain of Fe, is differentiated respectively for the size of crystal grain of 36.22 nm, 40.16 nm and Cu for 47.64 nm and 47.22 nm.2 We use the sample of SEM for different Fe content have carried out shape look observation to show, sample from orientaton isotropy and distribution comparatively even approximate inlay mutually for spherical tiny granular to enter form, the average grain way in film 1.298 m~ 2.158 urn satisfy each Fe and Cu granular average grain in lognormal distribution and annealing sample between diameter, between mean distance than do not the defect of little, explanation annealing sample of annealing sample is more few, tiny structure is much better, has more steady property. Above explanation FeCu granular film nanometer not dissolve firmly for receiving the metre structure of crystal grain metal magnetic granular film.3 We use VSM, for annealing and do not annealing sample have gone on magnetic properties measure, combination Origin software shows for the loop analysis of magnetic hysteresis: Do not coercivity of annealing pellet membrane between38.898Oe and 96.487Oe, the coercivity ofannealing sample between 30.327Oeand91.591Oe. Explanation carries out annealing handling for sample, the coercivity of pellet membrane average, it is little to reduce. For do not annealing and the coercivity of annealed and un-anneaied sample and sample than reduce little rear increase first with the increase of Fe content, for Fe, content is the annealing sample of 15%, its coercivity reaches 30.327Oe very little value.4 We use make thin film adsorption desorption model, have studied the particle desorption activation in FeCu granular film, energy show with the change relation of Fe content in membrane: The desorption activation of particle in FeCu granular film can want to spread activation than Fe or Cu can big near 5 times, particle desorption activation energy value between 3.815eV and3.858eV increase, with Fe content instead of increasing linearly. At the same time, have studied particle desorption activation and the of coercivityin granular film, can change relation, show: The coercicity of granular film along with desor...
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