Colossal magnetoresistance in epitaxial La(1−x−y)NayMnO3 thin film

1997 ◽  
Vol 70 (21) ◽  
pp. 2909-2911 ◽  
Author(s):  
M. Sahana ◽  
R. N. Singh ◽  
C. Shivakumara ◽  
N. Y. Vasanthacharya ◽  
M. S. Hegde ◽  
...  
Keyword(s):  
Thin Film ◽  
Colossal Magnetoresistance

Laser-Induced Thermoelectric Voltage in La0.5Pr0.5MnO3 Thin Film

2011 ◽  
Vol 287-290 ◽  
pp. 2248-2251
Author(s):  
Qian Qian Hua ◽  
Li Sheng Zhang ◽  
Pei Jie Wang
Keyword(s):  
Thin Film ◽  
Experimental Data ◽  
Single Crystal ◽  
Pulsed Laser Deposition ◽  
Colossal Magnetoresistance ◽  
Laser Energy ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Thermoelectric Voltage ◽  
First Time

The laser-induced thermoelectric voltage was observed for the first time in praseodymium doped LaMnO3 thin film grown on LaAlO3 single crystal vicinal cut substrates by pulsed laser deposition. The experimental data for La0.5Pr0.5MnO3 showed a good liner relation between the voltage and the laser energy. The result suggested that the anisotropic Seebeck effect were responsible for the voltage signals in colossal magnetoresistance manganites thin film.

Highly dense and compositionally inhomogeneous nano-agglomerates in an epitaxial La0.8Sr0.2MnO3 thin film grown on (100)SrTiO3

2005 ◽  
Vol 20 (3) ◽  
pp. 571-579 ◽  
Author(s):  
Y.L. Zhu ◽  
X.L. Ma ◽  
D.X. Li ◽  
H.B. Lu ◽  
Z.H. Chen ◽  
...  
Keyword(s):  
Thin Film ◽  
Colossal Magnetoresistance ◽  
Molecular Beam ◽  
Compositional Analysis ◽  
Salient Feature ◽  
Dark Field ◽  
Orientation Relationships ◽  
Dark Field Imaging ◽  
Transmission Electron ◽  
Field Imaging

Microstructures in the thin film of La0.8Sr0.2MnO3 grown on (100) SrTiO3 by laser molecular beam epitaxy were characterized by transmission electron microscopy. Highly dense and dimensionally uniform nano-agglomerates were found embedded in thin film of La0.8Sr0.2MnO3. High-angle angular dark-field imaging, elemental mapping, and compositional analysis revealed that the nano-agglomerates are rich in manganese and poor in lanthanum. The ratio of Mn/La in the nano-agglomerates fluctuates. A salient feature of this compositional fluctuation within the nanoscale isthe formation of cubic MnO phase, which appears as the core of the nano-agglomerates.The La0.8Sr0.2MnO3 film is domain-oriented and two domains were identified on the basis of orthorhombic lattice. The orientation relationships between La0.8Sr0.2MnO3 domains and MnO were determined as [010]LSMO,1//[001]MnO and (100)LSMO,1//(110)MnO; [101]LSMO,2//[001]MnO and (010)LSMO,2//(100)MnO. The domain structuresand compositional inhomogeneities within nanoscale result in a textured microstructure, which is one of the most important parameters for tuning electronic properties in colossal magnetoresistance oxides.

Transport properties and colossal magnetoresistance in epitaxial La0.67Cd0.33MnO3 thin film

1997 ◽  
Vol 71 (18) ◽  
pp. 2701-2703 ◽  
Author(s):  
M. Sahana ◽  
M. S. Hegde ◽  
N. Y. Vasanthacharya ◽  
V. Prasad ◽  
S. V. Subramanyam
Keyword(s):  
Thin Film ◽  
Transport Properties ◽  
Colossal Magnetoresistance

Magnetotransmission spectra in La0.7Pb0.3MnO3−δ epitaxial thin film with colossal magnetoresistance effect

2009 ◽  
Vol 105 (7) ◽  
pp. 07D727 ◽  
Author(s):  
Sidney T. Malak ◽  
Ryan Clayton-Cox ◽  
James R. Scheuermann ◽  
Jiri Stehlik ◽  
Jian-Qing Wang
Keyword(s):  
Thin Film ◽  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Epitaxial Thin Film ◽  
Colossal Magnetoresistance Effect

Colossal magnetoresistance in Sol-Gel derived epitaxial thin film of Co-doped La1−xCaxMnOx

1998 ◽  
Vol 27 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Seung-Young Bae ◽  
D. Jefferey Snyder ◽  
Shan Xiang Wang
Keyword(s):  
Thin Film ◽  
Colossal Magnetoresistance ◽  
Sol Gel ◽  
Epitaxial Thin Film ◽  
Co Doped

Clean Electron Microscope Substrate Films Used for Micrometeorite Collection and Study

1967 ◽  
Vol 25 ◽  
pp. 366-367
Author(s):  
D. M. Davies ◽  
R. Kemner ◽  
E. F. Fullam
Keyword(s):  
Thin Film ◽  
Electron Microscope ◽  
High Altitude ◽  
Amyl Acetate ◽  
Temperature Variations ◽  
Film Forming ◽  
Film Specimen ◽  
Particulate Contaminants

All serious electron microscopists at one time or another have been concerned with the cleanliness and freedom from artifacts of thin film specimen support substrates. This is particularly important where there are relatively few particles of a sample to be found for study, as in the case of micrometeorite collections. For the deposition of such celestial garbage through the use of balloons, rockets, and aircraft, the thin film substrates must have not only all the attributes necessary for use in the electron microscope, but also be able to withstand rather wide temperature variations at high altitude, vibration and shock inherent in the collection vehicle's operation and occasionally an unscheduled violent landing.Nitrocellulose has been selected as a film forming material that meets these requirements yet lends itself to a relatively simple clean-up procedure to remove particulate contaminants. A 1% nitrocellulose solution is prepared by dissolving “Parlodion” in redistilled amyl acetate from which all moisture has been removed.

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