Magnetic properties of CrSb2

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  • Magnetic Properties of CrSb<SUB>2</SUB>

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Magnetic property of CrSb2 having marcasite structure was investigated by means of magnetic, X-ray and neutron diffractions, specific heat and electrical resistivity measurements. The magnetic susceptibility of CrSb2 showed a maximum at about 550°K and it seems to be antiferromagnetic with a negative paramagnetic Curie point. From neutron diffraction and specific heat measurements, however, it was found that CrSb2 has no antiferromagnetic spin ordering. The resistivity is semiconductive with two activation energies, 0.14 eV and 0.07 eV below and above 200°K, respectively. Basing on a covalent crystal model, an explanation on the magnetic and the electrical properties were given: that is, the ground state has no magnetic moment (S=0), but the excited state is paramagnetic (S=1) with the energy gap of 0.07 eV from the ground state.

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