Ferromagnetic properties of selectively Mn-doped (Ga,Mn)As quantum wells

2009 ◽  
Vol 80 (19) ◽  
Author(s):  
Hye Jung Kim ◽  
Kyung Soo Yi
Keyword(s):  
Quantum Wells ◽  
Ferromagnetic Properties ◽  
Mn Doped

Ferromagnetic Properties of Mn-Doped III–V Semiconductor Quantum Wells

2005 ◽  
Vol 18 (2) ◽  
pp. 189-193 ◽  
Author(s):  
N. Kim ◽  
J. W. Kim ◽  
S. J. Lee ◽  
Y. Shon ◽  
T. W. Kang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Ferromagnetic Properties ◽  
Semiconductor Quantum Wells ◽  
Mn Doped

Positive magnetoresistance peaked at a ferromagnetic transition in Mn-doped GaAs/AlGaAs quantum wells

JETP Letters ◽  
2014 ◽  
Vol 100 (3) ◽  
pp. 167-173 ◽  
Author(s):  
N. V. Agrinskaya ◽  
V. A. Berezovets ◽  
V. I. Kozub
Keyword(s):  
Quantum Wells ◽  
Ferromagnetic Transition ◽  
Positive Magnetoresistance ◽  
Mn Doped

Ferromagnetic properties of Mn-doped AlN

2008 ◽  
Vol 403 (21-22) ◽  
pp. 4096-4099 ◽  
Author(s):  
H. Li ◽  
H.Q. Bao ◽  
B. Song ◽  
W.J. Wang ◽  
X.L. Chen ◽  
...  
Keyword(s):  
Ferromagnetic Properties ◽  
Mn Doped

scholarly journals Enhanced Magnetic Properties of BiFeO3 Thin Films by Doping: Analysis of Structure and Morphology

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 711 ◽  
Author(s):  
Yilin Zhang ◽  
Yuhan Wang ◽  
Ji Qi ◽  
Yu Tian ◽  
Mingjie Sun ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Sol Gel ◽  
Exchange Interactions ◽  
Ferromagnetic Behavior ◽  
Ferromagnetic Properties ◽  
Structure And Morphology ◽  
Related Diversification ◽  
Lattice Distortions ◽  
Mn Doped

The improvement of ferromagnetic properties is critical for the practical application of multiferroic materials, to be exact, BiFeO3 (BFO). Herein, we have investigated the evolution in the structure and morphology of Ho or/and Mn-doped thin films and the related diversification in ferromagnetic behavior. BFO, Bi0.95Ho0.05FeO3 (BHFO), BiFe0.95Mn0.05O3 (BFMO) and Bi0.95Ho0.05Fe0.95Mn0.05O3 (BHFMO) thin films are synthesized via the conventional sol-gel method. Density, size and phase structure are crucial to optimize the ferromagnetic properties. Specifically, under the applied magnetic field of 10 kOe, BHFO and BFMO thin films can produce obvious magnetic properties during magnetization and, additionally, doping with Ho and Mn (BHFMO) can achieve better magnetic properties. This enhancement is attributed to the lattice distortions caused by the ionic sizes difference between the doping agent and the host, the generation of the new exchange interactions and the inhibition of the antiferromagnetic spiral modulated spin structure. This study provides key insights of understanding the tunable ferromagnetic properties of co-doped BFO.

Hydrothermal Synthesis and Ferromagnetic Properties of Mn-Doped Na0.5Bi0.5TiO3 Crystals

2011 ◽  
Vol 311-313 ◽  
pp. 2110-2113 ◽  
Author(s):  
Yong Gang Wang ◽  
Yu Jiang Wang
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Room Temperature ◽  
Doping Concentration ◽  
Multiferroic Materials ◽  
Ferromagnetic Properties ◽  
Mn Doping ◽  
Pure Phase ◽  
Mn Doped

Pure phase Mn-doped Na0.5Bi0.5TiO3 crystals were successfully synthesized by a hydrothermal method. Magnetic loops measured at room temperature indicate that ferromagnetism can be obtained in Mn-doped Na0.5Bi0.5TiO3 crystals, and the magnetism of Na0.5Bi0.5TiO3 crystals can be controlled by adjusting Mn doping concentration. The magnetism of the Mn-doped Na0.5Bi0.5TiO3 crystals varied from diamagnetism, ferromagnetism, and paramagnetic on increasing Mn doping concentration from 0 to 30mol%. The results showed in this study may provide an approach to widely exploring more multiferroic materials.

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