Results 131 to 140 of about 97,118 (241)

Escalated Phase Separation Driven Enhanced Magnetoresistance in Manganite/Iridate Epitaxial Heterostructures

Advanced Physics Research
Phase separation in manganites leads to unique magnetic and electronic properties. 50% Ca‐doped LaMnO3 (LCMO), at the boundary of ferromagnetic (FM) and antiferromagnetic (AFM) states in La1‐xCaxMnO3 (0 ≤ x ≤ 1), is an ideal system to study phase ...
Pinku Roy, Di Zhang, Sundar Kunwar, Nicholas Cucciniello, Alessandro R. Mazza, Aiping Chen, Quanxi Jia   +6 more
doaj   +1 more source

Lanthanum and Oxygen vacancy effect on the ground state properties of bulk La0.75Ca0.25MnO3: A DFT+U study

Physics Open
Structural, electronic and magnetic properties of stoichiometric, La- and O-deficient bulk La0.75Ca0.25MnO3 compounds have been studied within the spin polarized GGA+U approximation of density functional theory.
L. Mouketo, D.P. Mankou Bakala, J.F. Matoko Ngouma, B.R. Malonda-Boungou, D. Joubert, B. M’Passi-Mabiala   +5 more
doaj   +1 more source

Relation between thickness, crystallite size and magnetoresistance of nanostructured La1−xSrxMnyO3±δ films for magnetic field sensors

Beilstein Journal of Nanotechnology, 2019
In the present study the advantageous pulsed-injection metal organic chemical vapour deposition (PI-MOCVD) technique was used for the growth of nanostructured La1−xSrxMnyO3±δ (LSMO) films on ceramic Al2O3 substrates.
Rasuole Lukose, Valentina Plausinaitiene, Milita Vagner, Nerija Zurauskiene, Skirmantas Kersulis, Virgaudas Kubilius, Karolis Motiejuitis, Birute Knasiene, Voitech Stankevic, Zita Saltyte, Martynas Skapas, Algirdas Selskis, Evaldas Naujalis   +12 more
doaj   +1 more source

Design, fabrication, and characterization of magnetic nanostructures

, 2008
For several years, thin films of ferromagnetic materials with metallic spacer layers showing giant magnetoresistance (GMR) were the technological basis used in the read-heads of hard disk drives. Similarly, tunnelling magnetoresistance (TMR), which is an
Claudio Gonzalez, David
core   +1 more source

Magnetic-polaron–induced colossal magnetocapacitance in CdCr

, 2013
The origin of colossal magnetoresistance and colossal magnetocapacitance in a CdCr2S4 system was investigated. Thermoelectric-power and electronic spin resonance spectra reveal that the magnetic polaron is responsible for the colossal magnetoresistance ...
L. H. Yin, S. Q. Zhou, Y. M. Xie, W. H. Song, Y. P. Sun, Z. R. Yang, Y. H. Zhang, X. L. Chen, Z. T. Zhang, W. Tong   +9 more
core   +1 more source

Polaron transport and lattice dynamics in colossal-magnetoresistance manganites

, 2019
Based on the model combining the spin double exchange and the lattice polaron, we have studied the colossal-magnetoresistance phenomena observed in perovskite manganites R(1-x)A(x)MnO(3). First, effects of both the double exchange and the electron-phonon
Min, BI, Lee, JD
core   +1 more source

Colossal magnetoresistance and unusual resistivity behaviors in magnetic semiconductors: Mn3Si2Te6 as a case study

npj Computational Materials
Colossal magnetoresistance (CMR) is typically observed in manganites and magnetic semiconductors, marked by a resistivity peak near the magnetic transition temperature that is significantly suppressed by an applied magnetic field, commonly referred to as
Zhihao Liu, Zhong Fang, Hongming Weng, Quansheng Wu   +3 more
doaj   +1 more source

Graphic User Interface for Monte Carlo Simulation of Ferromagnetic/Antiferromagnetic Manganite Bilayers

TecnoLógicas, 2011
The manganites have been widely studied because of their important properties as colossal magnetoresistance and exchange bias that are important phenomena used in many technological applications.
Hector Barco-Ríos, Edilberto Rojas-Calderón, Elisabeth Restrepo-Parra   +2 more
doaj  

Chemical tuning of the colossal magnetoresistance of ferromagnetic perovskites

, 2002
The colossal magnetoresistance (CMR) of a series of ferromagnetic $\rm L_{2/3}Ca_{1/3}MnO_3$ perovskites is explored for a wide range of lanthanides (L) having different ionic radii. It is shown that the CMR can be tuned through the appropriate size of
X. Obradors, B. Martínez, S. Piñol, A. Seffar, J. Fontcuberta, J. L. García-Muñoz   +5 more
core   +1 more source

Carrier density collapse and colossal magnetoresistance in doped manganites [PDF]

, 1998
A novel ferromagnetic transition, accompanied by carrier density collapse, is found in doped charge-transfer insulators with strong electron-phonon coupling. The transition is driven by an exchange interaction of polaronic carriers with localized spins;
A.S. Alexandrov (7170284), A.M. Bratkovsky (7170647)   +1 more
core   +1 more source