Large Room-Temperature Tunneling Magnetoresistance of “Bulrush-Like” Double Perovskite Ba$_{2}$FeMoO$_{6}$

2007 ◽  
Vol 43 (6) ◽  
pp. 3079-3081 ◽  
Author(s):  
W. Zhong ◽  
N. J. Tang ◽  
C. T. Au ◽  
Y. W. Du
Keyword(s):  
Room Temperature ◽  
Double Perovskite ◽  
Tunneling Magnetoresistance

Bulrush-Like Double Perovskite: Synthesis, Tunneling Magnetoresistance, and Magnetocaloric Effects

2008 ◽  
Vol 8 (6) ◽  
pp. 2793-2810 ◽  
Author(s):  
W. Zhong ◽  
N. J. Tang ◽  
C. T. Au ◽  
Y. W. Du
Keyword(s):  
Room Temperature ◽  
Recent Observation ◽  
Chemical Properties ◽  
Double Perovskite ◽  
Tunneling Magnetoresistance ◽  
Double Perovskites ◽  
New Approach ◽  
Half Metallic ◽  
Physical And Chemical ◽  
And Chemical Properties

The recent observation of room temperature tunneling magnetoresistance (TMR) in half-metallic A2FeMoO6 (A = Ca, Sr, Ba) double perovskites, and their importance to the emerging field of spintronics has led to considerable effort being dedicated to detailed investigations of the physical and chemical properties of these materials. This article will present an review of our recent investigations covering the synthesis, structures, magnetic and transport properties of "bulrush-like" A2FeMoO6 (A = Sr, Ba). Utilizing the high shape anisotropy as well as the reactivity of A2FeMoO6 to water and a sonochemical technique, we managed to manipulate the properties of grain boundary barriers, and thus put forward a new approach for the enhancement of room temperature TMR. The magnetocaloric effects of A2FeMoO6 double perovskites will also be discussed.

scholarly journals Ferromagnetic Insulators: Room-Temperature Ferromagnetic Insulating State in Cation-Ordered Double-Perovskite Sr2 Fe1+ x Re1− x O6 Films (Adv. Mater. 4/2019)

2019 ◽  
Vol 31 (4) ◽  
pp. 1970021
Author(s):  
Changhee Sohn ◽  
Elizabeth Skoropata ◽  
Yongseong Choi ◽  
Xiang Gao ◽  
Ankur Rastogi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Double Perovskite

Tunneling Magnetoresistance above Room Temperature in La0.7Sr0.3MnO3/SrTiO3/La0.7Sr0.3MnO3Junctions

2003 ◽  
Vol 42 (Part 2, No. 4A) ◽  
pp. L369-L372 ◽  
Author(s):  
Yasushi Ogimoto ◽  
Makoto Izumi ◽  
Akihito Sawa ◽  
Takashi Manako ◽  
Hiroshi Sato ◽  
...  
Keyword(s):  
Room Temperature ◽  
Tunneling Magnetoresistance

scholarly journals Room-Temperature Low-Field Colossal Magnetoresistance in Double-Perovskite Manganite

2019 ◽  
Vol 123 (12) ◽  
Author(s):  
S. Yamada ◽  
N. Abe ◽  
H. Sagayama ◽  
K. Ogawa ◽  
T. Yamagami ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Room Temperature ◽  
Double Perovskite ◽  
Perovskite Manganite ◽  
Low Field

scholarly journals Structural and optical properties of a revived Pb0.5Ba1.5BiVO6 perovskite oxide

2019 ◽  
Vol 09 (01) ◽  
pp. 1950004 ◽  
Author(s):  
R. K. Parida ◽  
D. K. Pattanayak ◽  
Bhagyashree Mohanty ◽  
Nimai C. Nayak ◽  
B. N. Parida
Keyword(s):  
Perovskite Structure ◽  
Room Temperature ◽  
Microstructural Analysis ◽  
Compositional Analysis ◽  
Rhombohedral Phase ◽  
Double Perovskite ◽  
Xrd Analysis ◽  
Perovskite Oxide ◽  
Dielectric Study ◽  
Wide Range

The polycrystalline ceramic Pb[Formula: see text]Ba[Formula: see text]BiVO6 manifesting the complex double perovskite structure was tailored by the conventional solid state route at a moderate temperature. Qualitative phase analysis and formation of the ceramic were affirmed by XRD analysis. The X-ray powder diffraction pattern of the compound explored at room temperature affirms the single phase formation with double perovskite structure exhibiting rhombohedral phase. Microstructural analysis of the studied compound procured from the Scanning Electron Microscope (SEM) validates the formation of dense microstructures and nonuniformly distributed grains with minimal voids. Compositional analysis was shaped through the Electron Diffraction Spectroscopy (EDS) confirming the absence of contamination of any other metals apart from the mentioned ones. Dielectric (Cr and [Formula: see text]) parameters of the compound were studied using the LCR analyzer at different temperatures and wide range of frequencies. The polarization and dielectric study affirms the presence of ferroelectricity in the material with transition temperature much above the room temperature. The tangent dielectric loss of this sample being almost minimal at room temperature attributes it to find applications in different grounds of electronics. Optical equities of the ceramic were further analyzed by the RAMAN, FTIR, UV–Vis and Photoluminescence spectroscopy.

Large room-temperature intergrain magnetoresistance in double perovskite SrFe1−x(Mo or Re)xO3

1999 ◽  
Vol 74 (12) ◽  
pp. 1737-1739 ◽  
Author(s):  
T. H. Kim ◽  
M. Uehara ◽  
S-W. Cheong ◽  
S. Lee
Keyword(s):  
Room Temperature ◽  
Double Perovskite

Room temperature relaxor ferroelectricity and spin glass behavior in Sr2FeTiO6 double perovskite

2012 ◽  
Vol 522 ◽  
pp. 90-95 ◽  
Author(s):  
P. Neenu Lekshmi ◽  
S. Savitha Pillai ◽  
K.G. Suresh ◽  
P.N. Santhosh ◽  
Manoj Raama Varma
Keyword(s):  
Spin Glass ◽  
Room Temperature ◽  
Double Perovskite ◽  
Spin Glass Behavior ◽  
Glass Behavior

ChemInform Abstract: Emergence of Room-Temperature Magnetic Ordering in Artificially Fabricated Ordered-Double-Perovskite Sr2FeRuO6.

ChemInform ◽  
2011 ◽  
Vol 42 (35) ◽  
pp. no-no
Author(s):  
Jaewan Chang ◽  
Kyujoon Lee ◽  
Myung Hwa Jung ◽  
Ji-Hwan Kwon ◽  
Miyoung Kim ◽  
...  
Keyword(s):  
Room Temperature ◽  
Magnetic Ordering ◽  
Double Perovskite
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