Browsing School of Material Science and Technology by Author "Kuroiwa, Y."

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Antiferrodistortive phase transition in pseudorhombohedral (Pb 0.94Sr0.06)(Zr0.550Ti0.450)O 3

Solanki, R.S.; Mishra, S.K.; Senyshyn, A.; Ishii, I.; Moriyoshi, C.; Suzuki, T.; Kuroiwa, Y.; Pandey, D. (2012-11-30)

The controversies about the structure of the true ground state of pseudorhombohedral compositions of Pb(ZrxTi1-x)O 3 (PZT) are addressed using a 6% Sr2+ substituted sample with x = 0.550. Sound velocity measurements reveal ...
Ground state of (Pb0.94Sr0.06)(Zr 0.530Ti0.470)O3 in the morphotropic phase boundary region

Solanki, R.S.; Singh, A.K.; Mishra, S.K.; Kennedy, S.J.; Suzuki, T.; Kuroiwa, Y.; Moriyoshi, C.; Pandey, D. (2011-10-24)

The antiferrodistortive (AFD) phase transition for a pseudotetragonal composition of Pb(Zr0.530Ti0.470)O3 doped with 6% Sr has been investigated using sound velocity (4-320 K), high-resolution synchrotron x-ray powder ...
Temperature-induced isostructural phase transition, associated large negative volume expansion, and the existence of a critical point in the phase diagram of the multiferroic (1 - X)BiFeO3-xPbTiO3 solid solution system

Bhattacharjee, S.; Taji, K.; Moriyoshi, C.; Kuroiwa, Y.; Pandey, D. (2011-09-12)

We report here an unusual ferroelectric to ferroelectric isostructural phase transition and associated giant negative thermal expansion (NTE) for the tetragonal composition x = 0.31 closest to the morphotropic phase boundary ...

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