Single Crystal ESR of Copper Doped KHCO3
نویسنده
چکیده
The principal components of the gand A-tensor of Cu obtained from single crystal ESR spectra of copper doped KHCO3 are gzz = 2.2347(1), gyy = 2.0474(1), gxx = 2.0468(1), Azz = 20.43(2) mT, Ayy = 3.22(1) mT, Axx = 2.63(2) mT. The unique axes of both tensors are parallel and lie in the mirror plane of the point group of the crystal (2/m). The direction of this axis conforms with the expectation from the structure of the first coordination shell of the K ions. This provides strong evidence for copper entering the K positions without major lattice disturbance. Several of the results presented here are at variance with those of an earlier report on the same subject.
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