高分解能X線非弾性散乱実験と計算機実験によるPb(In_<1/2>Nb_<1/2>)O_3の研究 : 反強誘電状態からリラクサーまでを制御するBサイトランダムネスの効果(最近の研究から)  [in Japanese] Inelastic X-ray Scattering and Calculation Studies of Pb(In_<1/2>Nb_<1/2>)O_3 : Effect of B-site Randomness on the Antiferroelectric/Relaxor Nature of the Ground State(Current Topics)  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

鉛含有複合ペロヴスカイト酸化物(Pb(B'B")O_3)におけるリラクサー状態の発現にBサイトランダムネスは重要な役割を果たしている.しかし,微視的なレベルでのその役割の理解は進んでいない.本稿では,Bサイトの秩序度により反強誘電状態からリラクサーまでを制御可能なPb(In_<1/2>Nb_<1/2>)O_3に注目し,実験・理論的アプローチからBサイトランダムネスの効果について議論する.

It is well known that B-site randomness contributes to the appearance of relaxor phenomena in the lead-based complex perovskite Pb(B'B")O_3. But the microscopic mechanism of the effect of B-site randomness on the systems has not been understood yet. Among the Pb(B'B")O_3 systems, Pb(In_<1/2>Nb_<1/2>)O_3 (PIN) has drawn much attention because it can be in the antiferroelectric (AFE), ferroelectric (FE), or relaxor state depending on B-site randomness. We review the recent progress in our understanding of the effect of B-site randomness on Pb(In_<1/2>Nb_<1/2>)O_3 (PIN) from both experimental and theoretical viewpoints.

Journal

  • Butsuri

    Butsuri 65(10), 800-804, 2010

    The Physical Society of Japan

References:  30

Codes

  • NII Article ID (NAID)
    110007818492
  • NII NACSIS-CAT ID (NCID)
    AN00196952
  • Text Lang
    JPN
  • Article Type
    REV
  • ISSN
    0029-0181
  • NDL Article ID
    10836513
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-13
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
Page Top