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Physical Properties of (M_2Cu_2O_3)_m(CuO_2)_n (M = Ca, Sr, Bi) Single Crystals with Bi-2212 Phase on their Surface

100%

Babonas G., Leonyuk L., Maltsev V., Szymczak R., Reza A., Baran M., Dapkus L.

Acta Physica Polonica A

2001

vol. 100

issue 4

553-563

The structural, optical, and magnetic properties are studied in the (M_2Cu_2O_3)_m(CuO_2)_n-type single crystals with the surface on which the Bi-2212-type phase was indicated. The physical properties of such samples were interpreted to some extent by the contributions of two phases. When the secondary phases on the surface of the samples were removed by mechanical polishing or etching by Ar^{+}-ion plasma, the physical properties were typical of the (M_2Cu_2O_3)_m(CuO_2)_n-type crystals. The optical method was shown to be effective for indication of secondary Bi-rich phases on the surface of (M_2Cu_2O_3)_m(CuO_2)_n samples.

Growth and Investigation of Heterostructures Based on Multiferroic BiFeO_3

84%

Vengalis B., Devenson J., Oginskis A., Butkutė R., Maneikis A., Steikūnienė A., Dapkus L., Banys J., Kinka M.

Acta Physica Polonica A

2008

vol. 113

issue 3

1095-1098

We report heteroepitaxial growth of multiferroic BiFeO_3 thin films by RF magnetron sputtering on lattice-matched SrTiO_3 substrates, as well as preparation and electrical properties of the heterostructures formed by growing BiFeO_3 thin films on highly conductive LaNiO_3 films and n-Si substrates. Nonlinear and rectifying current-voltage (I-U) characteristics were revealed for the heterojunctions in a wide temperature range (T=78-300 K).

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2 Acta Physica Polonica A

1 2008

1 2001

2 Dapkus L.

1 Babonas G.

1 Banys J.

1 Baran M.

1 Butkutė R.

1 Devenson J.

1 Kinka M.

1 Leonyuk L.

1 Maltsev V.

1 Maneikis A.

1 Oginskis A.

1 Reza A.

1 Steikūnienė A.

1 Szymczak R.

1 Vengalis B.

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Physical Properties of (M_2Cu_2O_3)_m(CuO_2)_n (M = Ca, Sr, Bi) Single Crystals with Bi-2212 Phase on their Surface

Growth and Investigation of Heterostructures Based on Multiferroic BiFeO_3