Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3 (Articolo in rivista)

Type
Label
  • Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3 (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Maselli, P 1; Nicoletti, D 1; Nucara, A 1; Vitucci, FM 1; Irizawa, A 2; Shoji, K 2; Nanba, T 2; Calvani, P 1 (2010)
    Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3
    in Europhysics letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Maselli, P 1; Nicoletti, D 1; Nucara, A 1; Vitucci, FM 1; Irizawa, A 2; Shoji, K 2; Nanba, T 2; Calvani, P 1 (literal)
Pagina inizio
  • 47001 (literal)
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  • 92 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
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  • 1 CNR-SPIN and Dipartimento di Fisica, Universit`a di Roma La Sapienza - Roma, Italy, EU 2 Graduate School of Science and Technology, Kobe University - Hyogo, Japan (literal)
Titolo
  • Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3 (literal)
Abstract
  • We observe how the charge-ordering (CO) temperature TCO of Nd1/2Sr1/2MnO3 decreases with the external pressure p from 160K at p=0 down to 30K at p? 4.5GPa, by measuring the values p, T where the far-infrared spectral weight of the metallic phase is fully recovered. We thus determine the (p, T) phase diagram of CO in that manganite. We also find that the parameter d(lnTCO)/dp which describes this metallization from the CO phase is equal and opposite to the quantity d(lnTc)/dp which governs the metallization of the paramagnetic state at comparable Curie temperatures Tc, in similar manganites at half-doping. (literal)
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