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Magnetic transitions in Cu_(2-x)Se below room temperature (CROSBI ID 88436)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Hamzić, Amir ; Ogorelec, Zvonko ; Zadro, Krešo ; Basletić, Mario Magnetic transitions in Cu_(2-x)Se below room temperature // Journal of magnetism and magnetic materials, 233 (2001), 181-186-x

Podaci o odgovornosti

Hamzić, Amir ; Ogorelec, Zvonko ; Zadro, Krešo ; Basletić, Mario

engleski

Magnetic transitions in Cu_(2-x)Se below room temperature

We have measured the magnetic susceptibility, resistivity, magnetoresistivity and Hall effect of nonstoichiometric cuprous selenide between 5 K and 350 K. Our results show that below 170 K Cu_(2-x)Se is a mixture of diamagnetic Cu_1.995Se and paramagnetic Cu_3Se_2. The phase diagram of the Cu-Se system, in which 170 K represents the eutectic isotherm, governs the relative content of the two phases. For the Cu_3Se_2 phase a transition to an antiferromagnetic state is observed at about 50 K, with the corresponding Weiss temperature 120 K. On heating above 170 K Cu_(2-x)Se becomes completely diamagnetic, but the transformation is slow and strongly time dependent. The complicated magnetic behaviour is ascribed to a broad temperature hysteresis of the process.

crystalline inorganic semiconductors; magnetic susceptibility; galvanomagnetic and other magnetotransport effects

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Podaci o izdanju

233

2001.

181-186-x

objavljeno

0304-8853

Povezanost rada

Fizika

Indeksiranost