Unprecedented lattice volume expansion on doping stereochemically active Pb2+ into uniaxially strained structure of CaBa1-xPbxZn2Ga2O7
Journal Article
·
· Nature Communications
- Chongqing Univ. (China); DOE/OSTI
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW (Australia); Univ. of Sydney, NSW (Australia)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
- Chongqing Univ. (China)
- Guilin University of Technology (China)
Lone pair cations like Pb2+ are extensively utilized to modify and tune physical properties, such as nonlinear optical property and ferroelectricity, of some specific structures owing to their preference to adopt a local distorted coordination environment. Here we report that the incorporation of Pb2+ into the polar “114”-type structure of CaBaZn2Ga2O7 leads to an unexpected cell volume expansion of CaBa1-xPbxZn2Ga2O7 (0 ≤ x ≤ 1), which is a unique structural phenomenon in solid state chemistry. Structure refinements against neutron diffraction and total scattering data and theoretical calculations demonstrate that the unusual evolution of the unit cell for CaBa1-xPbxZn2Ga2O7 is due to the combination of the high stereochemical activity of Pb2+ with the extremely strained [Zn2Ga2O7]4- framework along the c-axis. The unprecedented cell volume expansion of the CaBa1-xPbxZn2Ga2O7 solid solution in fact is a macroscopic performance of the release of uniaxial strain along c-axis when Ba2+ is replaced with smaller Pb2+.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- Chongqing Postdoctoral Science Special Foundation; Fundamental Research Funds for Central Universities; National Science Foundation of China; Natural Science Foundation of Chongqing; Postdoctoral Research Foundation of China; USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1624252
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 11; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Negative and zero thermal expansion in α-(Cu2-xZnx)V2O7 solid solutions
Structural, infrared, and magnetic characterization of the solid solution series Sr{sub 2{minus}x}Pb{sub x}(VO)(VO{sub 4}){sub 2}; Evidence of the Pb{sup 2+} 6s{sup 2} lone pair stereochemical effect
Electric field induced cubic to monoclinic phase transition in multiferroic 0.65Bi(Ni{sub 1/2}Ti{sub 1/2})O{sub 3}-0.35PbTiO{sub 3} solid solution
Journal Article
·
Sun Aug 02 20:00:00 EDT 2020
· ChemComm
·
OSTI ID:1780663
Structural, infrared, and magnetic characterization of the solid solution series Sr{sub 2{minus}x}Pb{sub x}(VO)(VO{sub 4}){sub 2}; Evidence of the Pb{sup 2+} 6s{sup 2} lone pair stereochemical effect
Journal Article
·
Sat Oct 31 23:00:00 EST 1998
· Journal of Solid State Chemistry
·
OSTI ID:305384
Electric field induced cubic to monoclinic phase transition in multiferroic 0.65Bi(Ni{sub 1/2}Ti{sub 1/2})O{sub 3}-0.35PbTiO{sub 3} solid solution
Journal Article
·
Mon Oct 20 00:00:00 EDT 2014
· Applied Physics Letters
·
OSTI ID:22350968