Mechanically-induced enhancement and modulation of upconversion photoluminescence by bending lanthanide doped perovskite oxides

2022 ◽  
Author(s):  
Feng Dong ◽  
Chen Hai Sheng ◽  
zhengang Dong ◽  
Xiaona Du ◽  
Wen Chen ◽  
...  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Eric Bousquet ◽  
Andrés Cano

AbstractThe most important types of non-collinear magnetic orders that are realized in simple perovskite oxides are outlined in relation to multiferroicity. These orders are classified and rationalized in terms of a mimimal spin Hamiltonian, based on which the notion of spin-driven ferroelectricity is illustrated. These concepts find direct application in reference materials such as BiFeO3, GdFeO3and TbMnO3whose multiferroic properties are briefly reviewed.


2021 ◽  
Vol 154 (15) ◽  
pp. 154702
Author(s):  
Nicola A. Spaldin ◽  
Ipek Efe ◽  
Marta D. Rossell ◽  
Chiara Gattinoni

2021 ◽  
Vol 33 (5) ◽  
pp. 1594-1606
Author(s):  
Monirul Shaikh ◽  
Aafreen Fathima ◽  
M. J. Swamynadhan ◽  
Hena Das ◽  
Saurabh Ghosh

Author(s):  
Elisa Poffe ◽  
Helena Kaper ◽  
Benedikt Ehrhardt ◽  
Lara Gigli ◽  
Daniel Aubert ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nara Lee ◽  
Jong Hyuk Kim ◽  
Dong Gun Oh ◽  
Hyun Jun Shin ◽  
Hwan Young Choi ◽  
...  

AbstractMagnetic properties can be manipulated to enhance certain functionalities by tuning different material processing parameters. Here, we present the controllable magnetization steps of hysteresis loops in double-perovskite single crystals of Eu2CoMnO6. Ferromagnetic order emerges below TC ≈ 122 K along the crystallographic c axis. The difficulty in altering Co2+ and Mn4+ ions naturally induces additional antiferromagnetic clusters in this system. Annealing the crystals in different gas environments modifies the mixed magnetic state, and results in the retardation (after O2-annealing) and bifurcation (after Ar-annealing) of the magnetization steps of isothermal magnetization. This remarkable variation offers an efficient approach for improving the magnetic properties of double-perovskite oxides.


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