Results 41 to 50 of about 14,475 (217)

Large tunneling magnetoresistance in octahedral Fe3O4 nanoparticles

AIP Advances, 2016
We have observed large tunneling Magnetoresistance (TMR) in amine functionalized octahedral nanoparticle assemblies. Amine monolayer on the surface of nanoparticles acts as an insulating barrier between the semimetal Fe3O4 nanoparticles and provides ...
Arijit Mitra, Barun Barick, Jeotikanta Mohapatra, H. Sharma, S. S. Meena, M. Aslam   +5 more
doaj   +1 more source

Spin-dependent tunneling in modulated structures of (Ga,Mn)As

, 2006
A model of coherent tunneling, which combines multi-orbital tight-binding approximation with Landauer-B\"uttiker formalism, is developed and applied to all-semiconductor heterostructures containing (Ga,Mn)As ferromagnetic layers.
D. Chiba, F. Matsukura, J. A. Majewski, J. Okabayashi, M. Kohda, P. Kacman, P. Sankowski, P. Sankowski, T. Dietl   +8 more
core   +1 more source

Electrical detection of magnetic skyrmions by non-collinear magnetoresistance [PDF]

, 2015
Magnetic skyrmions are localised non-collinear spin textures with high potential for future spintronic applications. Skyrmion phases have been discovered in a number of materials and a focus of current research is the preparation, detection, and ...
A Fert, A Fert, AD Kent, AN Bogdanov, André Kubetzka, B Dupé, Bertrand Dupé, C Gould, CH Marrows, Christian Hanneken, Fabian Otte, G Binasch, IE Dzyaloshinskii, J Sampaio, J Tersoff, K von Bergmann, Kirsten von Bergmann, KM Seemann, LM Sandratskii, M Bode, M Jullière, MN Baibich, N Nagaosa, N Romming, N Romming, Niklas Romming, NS Kiselev, PM Levy, R Wiesendanger, R Wiesendanger, Roland Wiesendanger, S Datta, S Heinze, S Mühlbauer, SSP Parkin, Stefan Heinze, T Moriya, TR McGuire, XZ Yu   +38 more
core   +1 more source

Inverse tunneling magnetoresistance in nanoscale magnetic tunnel junctions [PDF]

Physical Review B, 2005
11 pages, 4 figures, To be published in Phys. Rev. B (in press)
openaire   +2 more sources

Interlayer quantum transport in Dirac semimetal BaGa2

Nature Communications, 2020
The transport behavior at the quantum limit may show exotic phenomena such as special interlayer quantum transport. Here, the authors observe negative interlayer magnetoresistance resulted from tunneling of Dirac fermions between the zeroth Landau levels
Sheng Xu, Changhua Bao, Peng-Jie Guo, Yi-Yan Wang, Qiao-He Yu, Lin-Lin Sun, Yuan Su, Kai Liu, Zhong-Yi Lu, Shuyun Zhou, Tian-Long Xia   +10 more
doaj   +1 more source

A review on all-perovskite multiferroic tunnel junctions

Journal of Materiomics, 2017
Although the basic concept was proposed only about 10 years ago, multiferroic tunnel junctions (MFTJs) with a ferroelectric barrier sandwiched between two ferromagnetic electrodes have already drawn considerable interests, driven mainly by its potential ...
Yuewei Yin, Qi Li
doaj   +1 more source

Large Magnetoresistance Ratio in Ferromagnetic Single-Electron Transistors in the Strong Tunneling Regime

, 1999
We study transport through a ferromagnetic single-electron transistor. The resistance is represented as a path integral, so that systems where the tunnel resistances are smaller than the quantum resistance can be investigated.
A. Brataas, A. Brataas, A. Korotkov, A. Korotkov, Arne Brataas, D. V. Averin, D. V. Averin, G. D. Mahan, G. Schön, G.-L. Ingold, H. Imamura, J. Barnas, J. E. Hirsh, J. S. Moodera, J. S. Moodera, K. Ono, L. F. Schelp, M. Büttiker, M. Julliere, P. Joyez, P. M. Levy, S. Chakravarty, S. Sankar, S. Takahashi, X. H. Wang, X. H. Wang, X. H. Wang   +26 more
core   +3 more sources

Anisotropic magnetoresistance and anisotropic tunneling magnetoresistance due to quantum interference in ferromagnetic metal break junctions [PDF]

, 2006
We measure the low-temperature resistance of permalloy break junctions as a function of contact size and the magnetic field angle, in applied fields large enough to saturate the magnetization.
D. C. Ralph, E. L. Wolf, Ferdinand Kuemmeth, Kirill I. Bolotin   +3 more
core   +2 more sources

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

Advanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang, Xingyue Yang, Zongmeng Yang, Jing Lu, Pin Ho, Wenhong Wang, Yee Sin Ang, Zhenxiang Cheng, Shibo Fang   +8 more
wiley   +1 more source

Negative Magnetoresistance in the Nearest-neighbor Hopping Conduction

, 1997
We propose a size effect which leads to the negative magnetoresistance in granular metal-insulator materials in which the hopping between two nearest neighbor clusters is the main transport mechanism.
Belevtsev B. I., Böttger H., Landau L. D., Maksym P. A., Nguyen V. L., Nguyen V. L., Nguyen V. L., Pakhomov A. B., Pakhomov A. B., Ping Sheng, Pippard A. B., Shapir Y., Sheng P., Shklovskii B. I., Shklovskii B. I., X. C Xie, X. R Wang   +16 more
core   +3 more sources