The AsO4−4 center in CsH2AsO4: A Halperin-Varma defect moving in a single well potential |
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| Authors: | P.S.S. Guimarães R. Gazzinelli G.M. Ribeiro A.S. Chaves |
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| Affiliation: | 1. Department of Physics, ICEx, Universidade Federal de Minas Gerais, C.P. 702, Belo Horizonte, Brazil |
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| Abstract: | The ESR of the AsO4?4 center in CsH2AsO4 is investigated from 4.2 K to 270K. The behavior of this paramagnetic center is essentially different from its behavior in the other members of the KDP family. Two properties of the center are remarkable: it seems to behave like a Halperin-Varma kind of defect and to move classically in a single-well potential which can be represented with very good approximation by a square well. |
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