More Like this

1. Crystal Chemistry and Phonon Heat Capacity in Quaternary Honeycomb Delafossites: Cu[Li _1/3 Sn _2/3 ]O ₂ and Cu[Na _1/3 Sn _2/3 ]O ₂

   https://doi.org/10.1021/acs.inorgchem.8b01866  

   Abramchuk, Mykola; Lebedev, Oleg I.; Hellman, Olle; Bahrami, Faranak; Mordvinova, Natalia E.; Krizan, Jason W.; Metz, Kenneth R.; Broido, David; Tafti, Fazel (October 2018, Inorganic Chemistry)
2. Tuning In-Plane Magnetic Anisotropy and Interfacial Exchange Coupling in Epitaxial La _2/3 Sr _1/3 CoO ₃ /La _2/3 Sr _1/3 MnO ₃ Heterostructures

   https://doi.org/10.1021/acsami.3c10376  

   Feng, Mingzhen; Ahlm, Nolan; Sasaki, Dayne Y.; Chiu, I-Ting; N’Diaye, Alpha T.; Shafer, Padraic; Klewe, Christoph; Mehta, Apurva; Takamura, Yayoi (November 2023, ACS Applied Materials & Interfaces)
3. Oxygen octahedral tilt ordering in (Na _1/2 Bi _1/2 )TiO ₃ ferroelectric thin films

   https://doi.org/10.1063/1.5127212  

   Pramanick, A.; Paterson, A. R.; Denis, L.; Abbas, W.; Niu, G.; Ren, W.; Zhao, J.; Dai, L.; Borkiewicz, O.; Ren, Y.; et al (January 2020, Applied Physics Letters)

   null (Ed.)
4. Environmentally responsible synthesis of high-performance P2-Na _2/3 [Ni _1/3 Mn _2/3 ]O ₂ sodium-ion battery cathodes

   https://doi.org/10.1039/d4ta03708a  

   Fu, Jintao; Hassan, Mohamed H; Liu, Jiaxin; Koh, Hyeongjun; Ng, Alexander K; Bruzzi, Chiara; Corsi, John S; Detsi, Eric (January 2024, Journal of Materials Chemistry A)

   An environmentally responsible synthesis of Na_2/3[Ni_1/3Mn_2/3]O₂(NNMO) enabled by direct conversion of metallic Ni powder, releasing only O₂and H₂O as byproducts. The resulting NNMO exhibits excellent cycling performance as a Na-ion battery cathode. 

   more » « less
5. An overview of oxygen vacancy dynamics in (1 − x )(Bi _1/2 Na _1/2 )TiO ₃ – x BaTiO ₃ solid solution

   https://doi.org/10.1039/d1tc02668b  

   Fan, Zhongming; Randall, Clive A. (January 2021, Journal of Materials Chemistry C)

   null (Ed.)

   (Bi 1/2 Na 1/2 )TiO 3 (BNT) based ceramics have been the hot topic for a few years because of their multiple functions, from the piezoelectric properties to more recently the electrostatic energy storage performance. However, some basic issues are still unclear, preventing their wide application in real devices. One of them is the underlying conduction mechanism, the interplay of electronic and ionic carriers as a mixed ionic case and the subsequent quantification. This paper deals with the most basic compositions, which are the typical ones from the (1 − x )(Bi 1/2 Na 1/2 )TiO 3 – x BaTiO 3 (BNT– x BT) phase diagram. The conductivity is primarily investigated by impedance spectroscopy, while different equivalent circuits are applied to different conduction mechanisms. A transition from predominantly ionic to predominantly electronic conduction is revealed to occur with the increase in BaTiO 3 concentration. The mixed ionic–electronic conduction in the composition near the morphotropic phase boundary, namely BNT–7%BT, is identified and then quantified. To verify our interpretation of impedance results, dc degradation is, for the first time, conducted in this family of materials, from which the electronic and ionic conductions can be easily separated by accessing the mean time to failure. The successful combination of the two methods enables us to have an overview of how the oxygen vacancy dynamics in the BNT– x BT system depends upon the phase nature or the domain structure. 

   more » « less