Charge ordering transition in GdBaCo2O5: evidence of reentrant behavior

Autor: Allieta, M., Scavini, M., Lopresti, L., Coduri, M., Loconte, L., Cappelli, S., Oliva, C., Ghigna, P., Pattison, P., Scagnoli, V.

We present a detailed study on the charge ordering (CO) transition in GdBaCo2O5 system by combining high resolution synchrotron powder/single crystal diffraction with electron paramagnetic resonance (EPR) experiments as a function of temperature. We

Externí odkaz: http://arxiv.org/abs/1307.2692

Relaxor ferroeletric behavior in Sr1-xPrxTiO3: Cooperation between polar and antiferrodistortive instabilities

Autor: Checchia S., Allieta M., Coduri M., Brunelli M., Scavini M.

Publikováno v: Physical Review B 94 (2016). doi:10.1103/PhysRevB.94.104201
info:cnr-pdr/source/autori:Checchia S.; Allieta M.; Coduri M.; Brunelli M.; Scavini M./titolo:Relaxor ferroeletric behavior in Sr1-xPrxTiO3: Cooperation between polar and antiferrodistortive instabilities/doi:10.1103%2FPhysRevB.94.104201/rivista:Physical Review B/anno:2016/pagina_da:/pagina_a:/intervallo_pagine:/volume:94

Chemical doping at the Sr and Ti sites is a feasible way to alter the quantum paraelectric state of SrTiO3 perovskite. Doping with Pr is known to induce relaxor ferroelectricity at room temperature in the Sr1-xPrxTiO3 solid solution. The relationship

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::a6ba6a8cabd170cf136bb65be2775212
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.104201

Interplay of structural and magnetic nanoscale phase separation in layered cobaltites red cobaltites

Autor: Allieta M., Scavini M., Naldoni A., Coduri M., Cappelli S., Oliva C., Santangelo S., Triolo C., Patané S., Lascialfari A., Scagnoli V.

Publikováno v: Physical review. B, Condensed matter and materials physics 92 (2015). doi:10.1103/PhysRevB.92.054202
info:cnr-pdr/source/autori:Allieta M.; Scavini M.; Naldoni A.; Coduri M.; Cappelli S.; Oliva C.; Santangelo S.; Triolo C.; Patané S.; Lascialfari A.; Scagnoli V./titolo:Interplay of structural and magnetic nanoscale phase separation in layered cobaltites red cobaltites/doi:10.1103%2FPhysRevB.92.054202/rivista:Physical review. B, Condensed matter and materials physics/anno:2015/pagina_da:/pagina_a:/intervallo_pagine:/volume:92

We report on the structural, electronic, and magnetic phases of a previously unexplored region in the phase diagram of GdBaCo2O5+? (?=0.57 and 0.63). Despite a homogenous average structure displayed by both the samples, the orthorhombic highly oxygen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::e4032c2b0de5a6f718db46aab27a3604

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