Results 51 to 60 of about 9,208 (237)

Sr$_{0.9}$K$_{0.1}$Zn$_{1.8}$Mn$_{0.2}$As$_{2}$: a ferromagnetic semiconductor with colossal magnetoresistance [PDF]

, 2003
A bulk diluted magnetic semiconductor (Sr,K)(Zn,Mn)$_{2}$As$_{2}$ was synthesized with decoupled charge and spin doping. It has a hexagonal CaAl$_{2}$Si$_{2}$-type structure with the (Zn,Mn)$_{2}$As$_{2}$ layer forming a honeycomb-like network ...
A.R. Dengel, D. Niyogi, H. Samet, H.S. Baird, J.-F. Arias, L. Boatto, M. Delalandre, N. Gorski, P. Dosch, P. Dosch, Y. Yu   +10 more
core   +6 more sources

Visible range colossal magnetorefractive effect in (La1 − y Pr y )2/3Ca1/3MnO3 films

New Journal of Physics, 2014
We report a colossal magnetorefractive effect (MRE) in epitaxial thin films of a classical colossal magnetoresistance (CMR) manganite, (La _1 −  _y Pr _y ) _2/3 Ca _1/3 MnO _3 ( y  = 0.375 and 0.7).
M Jungbauer, S Hühn, J-O Krisponeit, V Moshnyaga   +3 more
doaj   +1 more source

2nd International Symposium on Physics of Data Storage; Conference Volume

Materials and Devices, 2018
The symposium ISPDS2 has taken place in Meknes (Morocco) in October, 2017. It has gathered specialists of various fields who presented their work in connection with the problematics of data storage.
Abdelhai Rahmani
doaj   +1 more source

Nanostructured Manganite Films Grown by Pulsed Injection MOCVD: Tuning Low- and High-Field Magnetoresistive Properties for Sensors Applications

Sensors, 2022
The results of colossal magnetoresistance (CMR) properties of La0.83Sr0.17Mn1.21O3 (LSMO) films grown by pulsed injection MOCVD technique onto various substrates are presented. The films with thicknesses of 360 nm and 60 nm grown on AT-cut single crystal
Voitech Stankevic, Nerija Zurauskiene, Skirmantas Kersulis, Valentina Plausinaitiene, Rasuole Lukose, Jonas Klimantavicius, Sonata Tolvaišienė, Martynas Skapas, Algirdas Selskis, Saulius Balevicius   +9 more
doaj   +1 more source

Unusually large magnetic moment and tricritical behavior of the CMR compound NaCr2O4 revealed with high resolution neutron diffraction and SR

JPhys Materials, 2023
The mixed valence Cr ^3+ /Cr ^4+ compound NaCr _2 O _4 , hosts a plethora of unconventional electronic properties. In the present study, muon spin rotation/relaxation ( $\mu^+$ SR) and high-resolution time-of-flight neutron powder diffraction ...
Elisabetta Nocerino, Ola Kenji Forslund, Hiroya Sakurai, Akinori Hoshikawa, Nami Matsubara, Daniel Andreica, Anton Zubayer, Federico Mazza, Takashi Saito, Jun Sugiyama, Izumi Umegaki, Yasmine Sassa, Martin Månsson   +12 more
doaj   +1 more source

Colossal Magnetoresistance in the Mn2+ Oxypnictides NdMnAsO1-xFx

, 2012
Colossal magnetoresistance (CMR) is a rare phenomenon in which the electronic resistivity of a material can be decreased by orders of magnitude upon application of a magnetic field.
Abbie C. Mclaughlin, Bednorz J. G., Bourdarot F., Chan J. Y., Chen G. F., Dagotto E., Efros A. L., Emery N., Emery N., Eve J. Wildman, Hwang H. Y., Janet M. S. Skakle, Jin. S., Kamihara Y., Kobayashi K. L., Marcinkova A., Margadonna S., Millis A. J., Mott N. F., Nicolas Emery, Oliveira N. F., Ramirez A. P., Rao C. N. R., Ren Z. A., Shapira Y., Subramanian M. A., Uehara M.   +26 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Negative longitudinal magnetoresistance in the density wave phase of Y$_2$Ir$_2$O$_7$

, 2018
The ground state of nanowires of single crystalline Pyrochlore Y$_2$Ir$_2$O$_7$ is a density wave. Application of a {\it transverse} magnetic field increases the threshold electric field for the collective de-pinning of the density wave state at low ...
Agarwal, Amit, Juyal, Abhishek, Mukhopadhyay, Soumik   +2 more
core   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Tunneling magnetoresistance in (La,Pr,Ca)MnO3 nanobridges

, 2009
The manganite (La,Pr,Ca)MnO3 is well known for its micrometer scale phase separation into coexisting ferromagnetic metallic and antiferromagnetic insulating (AFI) regions. Fabricating bridges with widths smaller than the phase separation length scale has
A. Biswas, A. F. Hebard, G. Singh-Bhalla, S.-W. Cheong, Y. Tomioka   +4 more
core   +1 more source