Literature DB >> 20867461

Pressure-induced disordering and anomalous lattice expansion in La2Zr2O7 pyrochlore.

F X Zhang1, M Lang, Zhenxian Liu, R C Ewing.   

Abstract

Pressure-induced cation and anion disordering in La2Zr2O7 pyrochlore is quantitatively analyzed by Rietveld refinement of in situ x-ray diffraction patterns, Raman, and infrared measurements. An anomalous lattice expansion and obvious change of the pressure dependence of the vibrational modes occur at ∼10  GPa. The pressure-induced water incorporation in the La2Zr2O7 pyrochlore structure may be related to a previously noted photoelectrochemical effect.

Entities:  

Year:  2010        PMID： 20867461     DOI： 10.1103/PhysRevLett.105.015503

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  6 in total

1.  Probing disorder in isometric pyrochlore and related complex oxides.

Authors:  Jacob Shamblin; Mikhail Feygenson; Joerg Neuefeind; Cameron L Tracy; Fuxiang Zhang; Sarah Finkeldei; Dirk Bosbach; Haidong Zhou; Rodney C Ewing; Maik Lang
Journal:  Nat Mater       Date:  2016-02-29       Impact factor: 43.841

2.  Fingerprint of local disorder in long range ordered isometric pyrochlores.

Authors:  Laura Martel; Mohamed Naji; Karin Popa; Jean-François Vigier; Joseph Somers
Journal:  Sci Rep       Date:  2017-09-25       Impact factor: 4.379

3.  Pressure-induced order-disorder transition in Gd1.5Ce0.5Ti2O7 pyrochlore.

Authors:  Jingjing Niu; Xiang Wu; Haibin Zhang; Shan Qin
Journal:  R Soc Open Sci       Date:  2019-09-04       Impact factor: 2.963

4.  Controllable sites and high-capacity immobilization of uranium in Nd2Zr2O7 pyrochlore.

Authors:  Jian Sun; Jing Zhou; Zhiwei Hu; Ting Shan Chan; Renduo Liu; Haisheng Yu; Linjuan Zhang; Jian Qiang Wang
Journal:  J Synchrotron Radiat       Date:  2022-01-01       Impact factor: 2.616

5.  Pressure-induced phase transition of La2Zr2O7 and La0.5Gd1.5Zr2O7 pyrochlore.

Authors:  Jingjing Niu; Xiang Wu; Haibin Zhang; Shan Qin
Journal:  RSC Adv       Date:  2019-06-17       Impact factor: 3.361

6.  Disorder in Ho2Ti2-x Zr x O7: pyrochlore to defect fluorite solid solution series.

Authors:  Devon L Drey; Eric C O'Quinn; Tamilarasan Subramani; Kristina Lilova; Gianguido Baldinozzi; Igor M Gussev; Antonio F Fuentes; Joerg C Neuefeind; Michelle Everett; David Sprouster; Alexandra Navrotsky; Rodney C Ewing; Maik Lang
Journal:  RSC Adv       Date:  2020-09-18       Impact factor: 4.036
  6 in total

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