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Magnetic Properties of EuBaCo_2O_{5.5} Single Crystals

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Baran M., Barilo S., Bychkov G., Gatalskaya V., Kurochkin L., Shiryaev S., Szymczak R., Szymczak H.

Acta Physica Polonica A

2004

vol. 105

issue 1-2

209-214

The static magnetization of the EuBaCo_2O_{5.5} single crystals was measured from helium to room temperatures for two configurations of the applied field: parallel and perpendicular to the c-axis. The compound is antiferromagnetic from helium temperature to about 210 K. In low temperature region (below 45 K) the antiferromagnetism coexists with a spin-glass-like state. The metamagnetic field-induced phase transition was observed in the antiferromagnetic phase for magnetic field applied perpendicular to the c-axis. The spontaneous phase transition from antiferromagnetic to weak ferromagnetic phase was established to be of the first order. This transition is accompanied by the appearance of the intermediate state. The weak ferromagnetic phase exists up to T_c=240 K.

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1 Acta Physica Polonica A

1 2004

1 Baran M.

1 Barilo S.

1 Bychkov G.

1 Gatalskaya V.

1 Kurochkin L.

1 Shiryaev S.

1 Szymczak H.

1 Szymczak R.

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Magnetic Properties of EuBaCo_2O_{5.5} Single Crystals