Room-temperature ferromagnetism in MgO nanocrystalline powders

2008 ◽  
Vol 93 (19) ◽  
pp. 192503 ◽  
Author(s):  
Jifan Hu ◽  
Zhongli Zhang ◽  
Ming Zhao ◽  
Hongwei Qin ◽  
Minhua Jiang
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Nanocrystalline Powders

Search for Room Temperature Ferromagnetism in Low-Concentration Transition Metal Doped ZnO Nanocrystalline Powders Using a Microscopic Technique

2010 ◽  
Vol 46 (6) ◽  
pp. 1780-1783 ◽  
Author(s):  
Rakesh Dogra ◽  
Artur W. Carbonari ◽  
Márcio E. Mercurio ◽  
Moacir R. Cordeiro ◽  
Juliana M. Ramos ◽  
...  
Keyword(s):  
Transition Metal ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Nanocrystalline Powders ◽  
Microscopic Technique ◽  
Low Concentration ◽  
Doped Zno ◽  
Metal Doped

Room-temperature ferromagnetism of Zn0.97Co0.03O pressed nanocrystalline powders

2008 ◽  
Vol 93 (2) ◽  
pp. 022510 ◽  
Author(s):  
Jifan Hu ◽  
Hongwei Qin ◽  
Tianfeng Xue ◽  
Ensi Cao ◽  
Dengtao Li
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Nanocrystalline Powders

scholarly journals Effect of argon annealing method on structural and ferromagnetic properties in Fe-doped SnO2 powders

2021 ◽  
Vol 2145 (1) ◽  
pp. 012031
Author(s):  
S Nongkae ◽  
K Tangphanit ◽  
S Teeta ◽  
E Swatsitang ◽  
K Wongsaprom
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Ferromagnetic State ◽  
Nanocrystalline Powders ◽  
Ferromagnetic Behavior ◽  
Ferromagnetic Coupling ◽  
Calcination Process ◽  
Fe Content ◽  
F Center ◽  
Annealing Method

Abstract Nanocrystalline powders of Fe-doped SnO2 (Sn1-xFexO2) (x = 0.00, 0.01, 0.03, 0.05) were prepared by a hydrothermal method. The powders were calcined in argon atmosphere at 600 °C for 2 h, causing phase transition from diamagnetic and weak ferromagnetic behavior to a ferromagnetic state. No trace and other magnetic impurity phases was detected in the samples with Fe content up to 3%. The calcined samples of Fe-doped SnO2 revealed the room temperature ferromagnetism with highest magnetization values of 434.07 memu/g at 15 kOe for x = 0.05. The room temperature ferromagnetism of samples originated from oxygen vacancies that occurred in the argon calcination process. In particular, oxygen vacancy shows a significant role in ferromagnetic coupling corresponding to F-center interaction.

Possible room-temperature ferromagnetism in SnO2 nanocrystalline powders with nonmagnetic K doping

2012 ◽  
Vol 376 (3) ◽  
pp. 203-206 ◽  
Author(s):  
Wei Zhou ◽  
Xiaomei Tang ◽  
Pengfei Xing ◽  
Weifang Liu ◽  
Ping Wu
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Nanocrystalline Powders

Oxygen vacancy mediated room temperature ferromagnetism in Cu-doped LiNbO3 thin films

2021 ◽  
Vol 527 ◽  
pp. 167775
Author(s):  
Xiaodong Zhou ◽  
Erlei Wang ◽  
Xiaodong Lao ◽  
Yongmei Wang ◽  
Honglei Yuan
Keyword(s):  
Thin Films ◽  
Oxygen Vacancy ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism

Origin of room-temperature ferromagnetism in Co-doped CeO2

2021 ◽  
pp. 413158
Author(s):  
Kenji Tarui ◽  
Tomohiro Oomori ◽  
Yuya Ito ◽  
Tomoyuki Yamamoto
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Doped Ceo2 ◽  
Co Doped
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