Pressure-temperature phase diagram of multiferroic Ni3 V2 O8

R. P. Chaudhury, F. Yen, C. R. Dela Cruz, B. Lorenz, Y. Q. Wang, Y. Y. Sun, C. W. Chu

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42 引文 斯高帕斯(Scopus)

摘要

The pressure-temperature phase diagram of multiferroic Ni3 V2 O8 is investigated for hydrostatic pressures up to 2 GPa. The stability range of the ferroelectric phase associated with the incommensurate helical spin order is reduced by pressure and ferroelectricity is completely suppressed at the critical pressure of 1.64 GPa at 6.2 K. Thermal expansion measurements at ambient pressure show strong steplike anomalies of the lattice parameters associated with the lock-in transition into the commensurate paraelectric phase. The expansion anomalies are highly anisotropic; the related volume change is consistent with the high-pressure phase diagram.

原文English
文章編號012407
期刊Physical Review B - Condensed Matter and Materials Physics
75
發行號1
DOIs
出版狀態Published - 2007

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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