Investigation of copper minerals by NQR: Crystallochemistry,electronic structure,lattice dynamics |
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| Authors: | R. S. Abdullin V. P. Kal'chev I. N. Pen'kov |
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| Affiliation: | 1. Department of Geology, University of Kazan, Lenin Avenue 18, 420008, Kazan, USSR
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| Abstract: | A series of copper minerals has been investigated by NQR (Nuclear Quadrupole Resonance), the most typical cases of Cu(I) environment in oxides, sulphides and sulphosalts being taken into account. The linear complexes CuX 2 have the greatest quadrupole splitting. Minimal quadrupole splitting is observed in tetrahedral complexes. Spin-lattice relaxation measurements indicate that the quadrupole relaxation mechanism due to the Raman process predominates. |
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