Neutron Diffraction Study on the Sites Occupation of N in Nd_2Fe_(14) BN_x Alloy

DU Hong lin 1, ZHANG Bai sheng 1, JI Chang guo 2, YANG Ying chang 2 (1 China Institute of Atomic Energy, P. O. Box 275 30,Beijing 102413, China; 2 Physics Department, Peking University, Beijing 100871, China)

doi:10.7538/yzk.2000.34.S1.0014

DU Hong lin 1, ZHANG Bai sheng 1, JI Chang guo 2, YANG Ying chang 2 (1 China Institute of Atomic Energy, P. O. Box 275 30,Beijing 102413, China; 2 Physics Department, Peking University, Beijing 100871, China). Neutron Diffraction Study on the Sites Occupation of N in Nd_2Fe_(14) BN_x Alloy[J]. Atomic Energy Science and Technology, 2000, 34(S1): 14-14. DOI: 10.7538/yzk.2000.34.S1.0014

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Neutron Diffraction Study on the Sites Occupation of N in Nd_2Fe_(14) BN_x Alloy

DU Hong lin 1, ZHANG Bai sheng 1, JI Chang guo 2, YANG Ying chang 2 (1 China Institute of Atomic Energy, P. O. Box 275 30,Beijing 102413, China; 2 Physics Department, Peking University, Beijing 100871, China)

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The neutron diffraction data of Nd 2Fe 14 BN x is preliminarily fitted. By using of the results and a small FORTRAN program, the distances of arbitrary coordinates to every atom in the structure are calculated, and so the possible sites of N atoms in the structure, for distances thinking just, are determined. After every possibility is fitted and studied by trail and error method, the N atoms are finally found to enter the interstitial sites 4e(0,0,0.099 0) and 4f(0.097 2, 0.097 2, 0) of the tetragonal structure. The magnetic structure is also studied.

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Neutron Diffraction Study on the Sites Occupation of N in Nd_2Fe_(14) BN_x Alloy

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