Boosted Oxygen Evolution Reactivity by Igniting Double Exchange Interaction in Spinel Oxides

2019 ◽  
Vol 142 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Jiangtian Li ◽  
Deryn Chu ◽  
Hong Dong ◽  
David R. Baker ◽  
Rongzhong Jiang
Keyword(s):  
Exchange Interaction ◽  
Oxygen Evolution ◽  
Double Exchange ◽  
Double Exchange Interaction ◽  
Spinel Oxides

Double exchange interaction promoted high-valence metal sites for neutral oxygen evolution reaction

2020 ◽  
Vol 56 (95) ◽  
pp. 15004-15007
Author(s):  
Jisi Li ◽  
Jingjing Ma ◽  
Kun Du ◽  
Erling Zhao ◽  
Jiaxin Guo ◽  
...  
Keyword(s):  
Transition Metal ◽  
Exchange Interaction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Double Exchange ◽  
Double Exchange Interaction ◽  
High Valent

A unique double-exchange strategy is adopted to access active high-valent transition metal sites during neutral oxygen evolution reaction.

Increase of ferromagnetic ordering temperature by the minority-band double-exchange interaction inSrRu1−xCrxO3

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
B. Dabrowski ◽  
S. Kolesnik ◽  
O. Chmaissem ◽  
T. Maxwell ◽  
M. Avdeev ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Double Exchange ◽  
Double Exchange Interaction ◽  
Ferromagnetic Ordering

Double Exchange Interaction Between Mn3+ and Ru4+ Ions in La1−x Sr x Mn1−x Ru x O3

2015 ◽  
Vol 28 (10) ◽  
pp. 3117-3120 ◽  
Author(s):  
Yao Ying ◽  
Jingwu Zheng ◽  
Liang Qiao ◽  
Wangchang Li ◽  
Wei Cai ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Double Exchange ◽  
Double Exchange Interaction

scholarly journals Half-Metallic Property Induced by Double Exchange Interaction in the Double Perovskite Bi2BB′O6 (B, B′ = 3d Transitional Metal) via First-Principles Calculations

Materials ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 1844 ◽  
Author(s):  
Hong-Zong Lin ◽  
Chia-Yang Hu ◽  
Po-Han Lee ◽  
Albert Zhong-Ze Yan ◽  
Wen-Fang Wu ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Density Functional ◽  
Double Exchange ◽  
Double Perovskite ◽  
Transition Metal Ions ◽  
Spin Interaction ◽  
Metallic Materials ◽  
Generalized Gradient ◽  
Double Exchange Interaction ◽  
Half Metallic

In this paper, we identify three possible candidate series of half-metals (HM) from Bi-based double perovskites Bi2BB′O6 (BB′ = transition metal ions) through calculations utilizing the density functional theory (DFT) and full-structural optimization, in which the generalized gradient approximation (GGA) and the strong correlation effect (GGA + U) are considered. After observing the candidate materials under four types of magnetic states, i.e., ferromagnetic (FM), ferrimagnetic (FiM), antiferromagnetic (AF), and nonmagnetic (NM), we found eight promising candidates for half-metallic materials. Under the GGA scheme, there are three ferromagnetic-half-metal (FM-HM) materials, Bi2CrCoO6, Bi2CrNiO6 and Bi2FeNiO6, and three FiM-HM materials, Bi2FeZnO6, Bi2CrZnO6 and Bi2CoZnO6. With implementation of the Coulomb interaction correction (GGA + U), we find two stable half-metallic materials: Bi2CrNiO6 and Bi2CrZnO6. We determine that the stability of some of these materials are tied to the double exchange interaction, an indirect interaction within the higher powers of localized spin interaction among transition metals via oxygen ions. Found in half-metallic materials, and especially those in the ferromagnetic (FM) state, the double exchange interaction is recognized in the FM-HM materials Bi2CrCoO6 and Bi2FeNiO6.

Cr enhanced ferromagnetism in La0.5Ba0.5CoO3 due to possible double-exchange interaction

2015 ◽  
Vol 628 ◽  
pp. 251-256 ◽  
Author(s):  
Shile Zhang ◽  
Li Pi ◽  
Wei Tong ◽  
Shun Tan ◽  
Changjin Zhang ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Double Exchange ◽  
Double Exchange Interaction
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