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EPR Studies on Dimers in a Diamagnetically Dilute Copper Calcium Acetate Hexahydrate by R. Samanta (Sikdar); A. K. Pal is a Physics and Astronomy article available to read on EtoBox.
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## Abstract X‐band EPR investigations of mixed crystals of the composition Cu~1−__x__~Cd~__x__~Ca(Ac)~4~ · 6 H~2~O (Ac = ace‐ tate) with __x__ = 0.858, 0.552,0.328, and 0.148 are carried out at room and liquid nitrogen temperatures. Besides monomer spectra, dimer spectra due to transitions within the spin triplet, singlet‐triplet transitions, and half‐field lines (due to Δ__M__ = 2 transitions within the dimer triplet) are observed. Zero‐field splitting is shown to have purely dipolar origin. Singlet‐triplet spectra enable precision determination of the value of the exchange integral __J__ as well as its sign. __J__ has a much greater value than that derived in case of the concentrated copper salt, and unlike the case of the latter it is isotropic, showing thereby that magnetic dilution plays an important role in determining the magnitude of __J__.
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It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- R. Samanta (Sikdar); A. K. Pal
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0370-1972)
- Published
- 1993
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)