Giant spin-driven ferroelectric polarization in TbMnO3 under high pressure (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Giant spin-driven ferroelectric polarization in TbMnO3 under high pressure (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1038/ncomms5927 (literal)

Alternative label

• Aoyama, T.; Yamauchi, K.; Iyama, A.; Picozzi, S.; Shimizu, K.; Kimura, T. (2014)
  Giant spin-driven ferroelectric polarization in TbMnO3 under high pressure
  in Nature communications
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Aoyama, T.; Yamauchi, K.; Iyama, A.; Picozzi, S.; Shimizu, K.; Kimura, T. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 5 (literal)

Rivista

• Nature communications (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 7 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Osaka University; Osaka University; Consiglio Nazionale delle Ricerche (CNR); Osaka University (literal)

Titolo

• Giant spin-driven ferroelectric polarization in TbMnO3 under high pressure (literal)

Abstract

• The recent research on multiferroics has provided solid evidence that the breaking of inversion symmetry by spin order can induce ferroelectric polarization P. This type of multiferroics, called spin-driven ferroelectrics, often show a gigantic change in P on application of a magnetic field B. However, their polarization (< similar to 0.1 mu C cm(-2)) is much smaller than that in conventional ferroelectrics (typically several to several tens of mCcm(-2)). Here we show that the application of external pressure to a representative spin-driven ferroelectric, TbMnO3, causes a flop of P and leads to the highest P (approximate to 1.0 mu C cm(-2)) among spin-driven ferroelectrics ever reported. We explain this behaviour in terms of a pressureinduced magnetoelectric phase transition, based on the results of density functional simulations. In the high-pressure phase, the application of B further enhances P over 1.8 mu C cm(-2). This value is nearly an order of magnitude larger than those ever reported in spin-driven ferroelectrics. (literal)

Prodotto di

• Proprietà strutturali, elettroniche e vibrazionali di sistemi a forte correlazione elettronica (MD.P04.025.003) (Modulo)

Autore CNR

• SILVIA PICOZZI (Unità di personale interno)

Incoming links:

Autore CNR di

• SILVIA PICOZZI (Unità di personale interno)

Prodotto

• Proprietà strutturali, elettroniche e vibrazionali di sistemi a forte correlazione elettronica (MD.P04.025.003) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Nature communications (Rivista)