Room temperature ferromagnetic properties of dysprosium-doped tris(8-hydroxyquinoline) aluminum: experimental and theoretical investigation

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43780-43785 ◽  
Author(s):  
Feng Jiang ◽  
Zhiyong Pang ◽  
Huimin Yuan ◽  
Zhixian Wei ◽  
Wanfeng Xie ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Ferromagnetic Properties

Room-temperature ferromagnetism was observed in a Dy-doped Alq3 film.

Synthesis and room-temperature ferromagnetism of cobalt-doped SnO2 nanowires

2009 ◽  
Vol 24 (6) ◽  
pp. 2001-2005 ◽  
Author(s):  
Jin Wu ◽  
Ke Yu ◽  
Yongsheng Zhang ◽  
Lijun Li ◽  
Ziqiang Zhu
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Chemical Vapor ◽  
Average Diameter ◽  
Magnetization Measurement ◽  
Chemical Vapor Transport ◽  
Ferromagnetic Properties ◽  
Transmission Electron ◽  
Sno2 Nanowires ◽  
Ferromagnetic Hysteresis

We have observed ferromagnetism in dilute cobalt-doped SnO2 nanowires at room temperatures. The Co-doped SnO2 nanowires with an average diameter of ∼50 nm were synthesized by the thermal chemical vapor transport method. High-resolution transmission electron microscopy and energy-dispersive x-ray spectroscopy analyses demonstrate that the nanowires are single-crystal structures and Co is homogeneously doped into the SnO2 lattice. The ferromagnetic hysteresis curves and temperature-dependent magnetization measurement provide evidence for ferromagnetic properties with a Curie temperature above room temperature. Oxygen annealing has been performed to study the roles played by the oxygen vacancies in determining the ferromagnetic properties of the nanowires.

Role of multivalent Cu, oxygen vacancies and CuO nanophase in the ferromagnetic properties of ZnO:Cu thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 55648-55657 ◽  
Author(s):  
M. Younas ◽  
Junying Shen ◽  
Mingquan He ◽  
R. Lortz ◽  
Fahad Azad ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Room Temperature ◽  
Oxygen Vacancies ◽  
Room Temperature Ferromagnetism ◽  
Simultaneous Presence ◽  
Ferromagnetic Properties

Room temperature ferromagnetism (FM) of these thin film samples are highly tuneable by the simultaneous presence of CuO nanophases and multivalent Cu and Vö concentrations.

Ferromagnetism in undoped semiconductors

2011 ◽  
Vol 1370 ◽  
Author(s):  
Yandong Ma ◽  
Ying Dai ◽  
Baibiao Huang
Keyword(s):  
Spin Polarization ◽  
Magnetic Moment ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Local Magnetic Moment ◽  
Semiconductor Materials ◽  
Ferromagnetic Coupling ◽  
Dangling Bonds ◽  
Ferromagnetic Properties ◽  
Cation Vacancies

ABSTRACTThe so-called “d0” magnetism observed in semiconductors, which is not caused by partially filled d orbitals, has challenged our conventional understanding on the origin of magnetism. One class of semiconductor materials showing d0 ferromagnetism is undoped oxides and nitrides. Here, we review the ferromagnetic properties of undoped GaN and MgO based on our recent investigations. It is revealed that the room-temperature ferromagnetism originates from the anion dangling bonds associated with the surface cation-vacancies. And the magnetism of ferromagnetic coupling between the vacancy induced local magnetic moment by through-bond spin polarization in undoped semiconductors is reviewed according to our works.

Room temperature ferromagnetic properties of In2S3 nanoparticles regulated by doping with Gd ions

2019 ◽  
Vol 21 (27) ◽  
pp. 15089-15096 ◽  
Author(s):  
Yi Liu ◽  
Hongpeng Zhang ◽  
Qi Zhao ◽  
Qing Lu ◽  
Mingming Zhu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Ferromagnetic Properties

Gd-Doped In2S3 nanoparticles, with sizes of 3–5 nm, were synthesized, which demonstrated enhanced room-temperature ferromagnetism.

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

Intrinsic Room-Temperature Ferromagnetism in V2C MXene Nanosheets

2021 ◽  
Author(s):  
Hao Tan ◽  
Chao Wang ◽  
Hengli Duan ◽  
Jie Tian ◽  
Qianqian Ji ◽  
...  
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism
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