Results 61 to 70 of about 7,606 (295)

Interfacial Density of States in Magnetic Tunnel Junctions

Physical Review Letters, 2001
Physical Review ...
LeClair, P.R., Kohlhepp, J.T., Swagten, H.J.M., Jonge, de, W.J.M.   +3 more
openaire   +3 more sources

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Silicon spin diffusion transistor: materials, physics and device characteristics

, 2005
The realisation that eaveryday electronics has ignored the spin of the carrier in favour of its charge is the foundation of the field of spintronics. Starting with simple two-terminal devices based on GMR and tunnel magnetoresistance, the technology has ...
Tiusan, C, C.V. Tiusan, Gregg, John, S.M. Thompson, Ensell, G, Thompson, SM, Thompson, S M, Gregg, J F, Dennis, CL, Tiusan, CV, Ensell, GJ, Gregg, JF, C.L. Dennis, J.F. Gregg, G.J. Ensell, Dennis, C L   +15 more
core   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

The impact of local pinning sites in magnetic tunnel junctions with non-homogeneous free layers

Communications Materials
Pinning at local defects is a significant road block for the successful implementation of technological paradigms which rely on the dynamic properties of non-trivial magnetic textures.
Alex. S. Jenkins, Leandro Martins, Luana C. Benetti, Alejandro Schulman, Pedro Anacleto, Marcel S. Claro, Ihsan Caha, Francis Leonard Deepak, Elvira Paz, Ricardo Ferreira   +9 more
doaj   +1 more source

High-dose X-ray radiation induced MgO degradation and breakdown in spin transfer torque magnetic tunnel junctions

Scientific Reports, 2022
Magnetic tunnel junction (MTJ) with magnesium oxide (MgO) tunnel barrier is the core element of spin transfer torque-based magnetic random access memory. For the application in the space environment, the total ionizing dose radiation effects on MTJs need
Qi He, Hui Shi, Yinquan Wang, Lichao Cao, Xiang Gu, Jianwei Wu, Genshen Hong, Minghua Li   +7 more
doaj   +1 more source

Kondo effect in magnetic tunnel junctions with an AlO x tunnel barrier [PDF]

Physics Letters A, 2016
The influence of the magnetization configuration on Kondo effect in magnetic tunnel junction is investigated. In the parallel configuration, an additional resistance contribution (R*) below 40 K exhibits a logarithmic temperature dependence, indicating the presence of Kondo effect.
ZHENG, C, Shull, R.D., Chen, P.J., Pong, PWT   +3 more
openaire   +4 more sources

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source

Magnetic tunnel junction based on bilayer LaI2 as perfect spin filter device

npj 2D Materials and Applications
The discovery of van der Waals intrinsic magnets has expanded the possibilities of realizing spintronics devices. We investigate the transmission, tunneling magnetoresistance ratio, and spin injection efficiency of bilayer LaI2 using a combination of ...
Shubham Tyagi, Avijeet Ray, Nirpendra Singh, Udo Schwingenschlögl   +3 more
doaj   +1 more source

Detection of Small Magnetic Fields Using Serial Magnetic Tunnel Junctions with Various Geometrical Characteristics

Sensors, 2020
Thanks to their high magnetoresistance and integration capability, magnetic tunnel junction-based magnetoresistive sensors are widely utilized to detect weak, low-frequency magnetic fields in a variety of applications.
Zhenhu Jin, Yupeng Wang, Kosuke Fujiwara, Mikihiko Oogane, Yasuo Ando   +4 more
doaj   +1 more source