Results 61 to 70 of about 14,475 (217)

Large and Local Magnetoresistance in a State-of-the-Art Perpendicular Magnetic Medium

Nanotechnology, Science and Applications, 2021
Morgan Williamson,1,2 Cheng Wang,3 Pin-Wei Huang,3 Ganping Ju,3 Maxim Tsoi1,2 1Physics Department, University of Texas at Austin, Austin, TX 78712, USA; 2Texas Materials Institute, University of Texas at Austin, Austin, TX 78712, USA; 3Fremont Research ...
Williamson M, Wang C, Huang PW, Ju G, Tsoi M   +4 more
doaj  

Shape effect of Co nanoparticles on the electric and magnetic properties of Co–SiO2 nanogranular films

AIP Advances, 2022
Controlling the magnetic anisotropy of nanoparticles is a crucial but challenging step for developing new magnetic functions. Here, we demonstrate a simple approach to controlling the shape of Co nanoparticles in a Co-SiO2 nanogranular film from oblate ...
Hanae Kijima-Aoki, Yasushi Endo, Takamichi Miyazaki, Tsutomu Nojima, Kenji Ikeda, Nobukiyo Kobayashi, Shigehiro Ohnuma, Hiroshi Masumoto   +7 more
doaj   +1 more source

Negative tunnel magnetoresistance and differential conductance in transport through double quantum dots

, 2009
Spin-dependent transport through two coupled single-level quantum dots weakly connected to ferromagnetic leads with collinear magnetizations is considered theoretically.
Ireneusz Weymann, Józef Barnaś, Piotr Trocha, S. Maekawa, S. Maekawa   +4 more
core   +1 more source

Theory for tunnel magnetoresistance oscillation

Physical Review B
The universal oscillation of the tunnel magnetoresistance (TMR) ratio as a function of the insulating barrier thickness in crystalline magnetic tunnel junctions (MTJs) is a long-standing unsolved problem in condensed matter physics. To explain this, we here introduce a superposition of wave functions with opposite spins and different Fermi momenta ...
Keisuke Masuda, Thomas Scheike, Hiroaki Sukegawa, Yusuke Kozuka, Seiji Mitani, Yoshio Miura   +5 more
openaire   +3 more sources

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Local spin valve effect in lateral (Ga,Mn)As/GaAs spin Esaki diode devices

AIP Advances, 2011
We report here on a local spin valve effect observed unambiguously in lateral all-semiconductor all-electrical spin injection devices, employing p+ −(Ga,Mn)As/n+ −GaAs Esaki diode structures as spin aligning contacts.
M. Ciorga, C. Wolf, A. Einwanger, M. Utz, D. Schuh, D. Weiss   +5 more
doaj   +1 more source

Tunneling Anisotropic Magnetoresistance in Co/AlOx/Au Tunnel Junctions [PDF]

, 2008
We observe spin-valve-like effects in nano-scaled thermally evaporated Co/AlOx/Au tunnel junctions. The tunneling magnetoresistance is anisotropic and depends on the relative orientation of the magnetization direction of the Co electrode with respect to ...
Bode M., Chantis A. N., Chen C. D., Chou S. Y., Cowburn R. P., Giddings A. D., Gould C., Jensen A., Johansson J., Lessard A., Liu R. S., Moodera J. S., Moser J., Sahoo S., Schabes M.E. ., Shick A. B., Skomski R., Smit J., Stoner E. C., Thomson W., Wernsdorfer W., Ziese M.   +21 more
core   +1 more source

Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr

Advanced Materials, EarlyView.
Biaxial compressive strain significantly enhances magnetoresistance and critical saturation fields in thin flakes of the 2D magnet CrSBr, along all three crystallographic axes. First‐principles calculations link these effects to strain‐induced increases in exchange interactions and magnetic anisotropy.
Eudomar Henríquez‐Guerra, Alberto M. Ruiz, Marta Galbiati, Álvaro Cortés‐Flores, Daniel Brown, Esteban Zamora‐Amo, Lisa Almonte, Andrei Shumilin, Juan Salvador‐Sánchez, Ana Pérez‐Rodríguez, Iñaki Orue, Andrés Cantarero, Andres Castellanos‐Gomez, Federico Mompeán, Mar Garcia‐Hernandez, Efrén Navarro‐Moratalla, Enrique Diez, Mario Amado, José J. Baldoví, M. Reyes Calvo   +19 more
wiley   +1 more source

Crossover from Positive to Negative Interlayer Magnetoresistance in Multilayer Massless Dirac Fermion System with Non-Vertical Interlayer Tunneling

, 2010
We present a theoretical description of the interlayer magnetoresistance in the layered Dirac fermion system with the application to the organic conductor \alpha-(BEDT-TTF)_2I_3 under pressure.
Bender, Ishibashi, Kartsovnik, Katayama, Kino, Kino, Kobayashi, Kobayashi, Kondo, Morinari, Neto, Novoselov, Osada, Schwenk, Seo, Shon, Suzuura, Tajima, Tajima, Takano, Wallace, Wojciechowski, Zhang   +22 more
core   +1 more source