Results 71 to 80 of about 25,134 (237)

Evidence for asymmetric rotation of spins in antiferromagnetic exchange-spring

New Journal of Physics, 2014
We demonstrate an asymmetric rotation of the antiferromagnetic (AFM) spins in the exchange-spring driven by perpendicularly magnetized Co/Pt. The static and dynamic behaviors of the twisted spin structure are directly revealed by a combination of element
Y Y Wang, C Song, G Y Wang, F Zeng, F Pan   +4 more
doaj   +1 more source

Normal-state negative longitudinal magnetoresistance and Dirac-cone-like dispersion in PtPb4 single crystals: a potential Weyl-semimetal superconductor candidate

New Journal of Physics, 2021
Magnetotransport measurements of PtPb _4 single crystals with the T _c of ∼2.80 K reveal pronounced exotic topological nature. An anomalous negative longitudinal magnetoresistance (MR) related to the chiral anomaly and a linear-like transverse MR ...
Li-Min Wang, Sheng-En Lin, Dong Shen, I-Nan Chen   +3 more
doaj   +1 more source

Microwave Absorption for Detection of Dirac Fermions in SnTe Films

Advanced Materials Interfaces, EarlyView.
Microwave absorption can detect Dirac fermions in samples exposed to the atmosphere. Results showed that although topological surface states are robust against environmental degradation, they are not detectable by electrical transport measurements. Hence, microwave absorption can detect Dirac fermions even in samples whose surfaces have deteriorated ...
Wellington P. do Prado, Jorge A. Navarro‐Giraldo, Muhammad Tahsin, Vinicius T. Santana, Eduardo Abramof, Paulo H. O. Rappl, Suelen de Castro, Marcelos L. Peres, Petr Neugebauer   +8 more
wiley   +1 more source

Magnetotransport in nanocrystalline SmB6 thin films

AIP Advances, 2015
SmB6 has been predicted to be a prototype of topological Kondo insulator (TKI) but its direct experimental evidence as a TKI is still lacking to date. Here we report on our search for the signature of a topological surface state and investigation of the ...
Jie Yong, Yeping Jiang, Xiaohang Zhang, Jongmoon Shin, Ichiro Takeuchi, Richard L. Greene   +5 more
doaj   +1 more source

Linear Positive Magnetoresistivity of the Bi1.9Lu0.1Te3 Alloy with Inhomogeneous Micrograined Structure [PDF]

Журнал нано- та електронної фізики, 2016
Positive nonsaturating transverse magnetoresistivity (MR) has been observed below room temperature in the Bi1.9Lu0.1Te3 alloy with inhomogeneous micrograined structure. A crossover from parabolic MR ~ B2 dependence in low magnetic fields to linear MR ~ B
O.N. Ivanov, M.N. Yaprintsev, R.A. Lyubushkin, O.N. Soklakova   +3 more
doaj   +1 more source

Spin-dependent Quantum Interference in Single-Wall Carbon Nanotubes with Ferromagnetic Contacts

, 2006
We report the experimental observation of spin-induced magnetoresistance in single-wall carbon nanotubes contacted with high-transparency ferromagnetic electrodes.
A. F. Morpurgo, B. Alphenaar, H. T. Man, I. J. W. Wever   +3 more
core   +3 more sources

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

Magnetic field cycling effect on the non-linear current-voltage characteristics and magnetic field induced negative differential resistance in α-Fe1.64Ga0.36O3 oxide

AIP Advances, 2015
We have studied current-voltage (I-V) characteristics of α-Fe1.64Ga0.36O3, a typical canted ferromagnetic semiconductor. The sample showed a transformation of the I-V curves from linear to non-linear character with the increase of bias voltage.
R. N. Bhowmik, G. Vijayasri
doaj   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Magnetotransport in a Model of a Disordered Strange Metal

Physical Review X, 2018
Despite much theoretical effort, there is no complete theory of the “strange” metal state of the high temperature superconductors, and its linear-in-temperature T resistivity.
Aavishkar A. Patel, John McGreevy, Daniel P. Arovas, Subir Sachdev   +3 more
doaj   +1 more source