Results 31 to 40 of about 2,921 (220)

Resummation for the field-theoretical derivation of the negative magnetoresistance

Journal of High Energy Physics, 2020
We show detailed derivation of the electric conductivity of quark matter at finite temperature and density under a magnetic field. We especially focus on the longitudinal electric conductivity along the magnetic direction and establish the field ...
Kenji Fukushima, Yoshimasa Hidaka
doaj   +1 more source

Band-Gap Tuning and Linear Magnetoresistance in the Silver Chalcogenides [PDF]

Physical Review Letters, 2002
Optimally doped silver selenide and silver telluride exhibit linear positive magnetoresistance over decades in magnetic field and on a scale comparable to the colossal magnetoresistance compounds. We use hydrostatic pressure to smoothly alter the band structure of Ag-rich and Ag-deficient samples of semiconducting Ag(2 +/-delta)Te of fixed ...
Lee, M., Rosenbaum, T. F., Saboungi, M.-L., Schnyders, H. S.   +3 more
openaire   +3 more sources

Bias Voltage Dependence of Sensing Characteristics in Tunneling Magnetoresistance Sensors

Sensors, 2021
One of the characteristic features of tunneling magnetoresistance (TMR) sensors is a strong influence of bias voltage on tunneling current. Since fundamental sensing characteristics of the sensors are primarily determined by the tunneling current, the ...
Piotr Wiśniowski, Maciej Nawrocki, Jerzy Wrona, Susana Cardoso, Paulo. P. Freitas   +4 more
doaj   +1 more source

Quantum linear magnetoresistance: a modern perspective

Journal of Physics: Condensed Matter
Abstract Magnetoresistance (MR) is a powerful probe for characterizing the intrinsic physics embedded in materials. Among its various manifestations, linear MR (LMR) has a long history and continues attracting research interest. In contemporary studies, a clear understanding of the MR characteristic of quantum origin is more crucial ...
Shuai Li, Huichao Wang
openaire   +3 more sources

Magneto-transport and electronic structures of BaZnBi2

New Journal of Physics, 2017
We report the magneto-transport properties and electronic structures of BaZnBi _2 . BaZnBi _2 is a quasi-two-dimensional material with metallic behavior. Transverse magnetoresistance (MR) depends on magnetic field linearly and exhibits Shubnikov–de Haas (
Yi-Yan Wang, Peng-Jie Guo, Qiao-He Yu, Sheng Xu, Kai Liu, Tian-Long Xia   +5 more
doaj   +1 more source

Linear magnetoresistance in gold foams

RSC Advances, 2017
Classical linear magnetoresistance is observed in ultralow density gold foams with strong spatial inhomogeneity.
Zhaoguo Li, Jiangshan Luo, Xiulan Tan, Qi Fang, Yong Zeng, Lingbiao Meng, Minjie Zhou, Weidong Wu, Jicheng Zhang   +8 more
openaire   +2 more sources

2D transport and weak antilocalization effect in topological semimetal PtBi2 nanoflakes

AIP Advances
The striking anisotropic magnetoresistance and linear magnetoresistance observed in topological semimetals have attracted immense attention owing to their potential in magnetoresistance devices. We investigated the magnetotransport properties of trigonal
Ankang Zhu, Cheng Wang, Lei Tong, Di Liu, Li Xu, Yu Zhou, Hui Gao, Li Li, Qingqing Wang, Li Wang, Hao Gong   +10 more
doaj   +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

Impact of confined LO-phonons on the Hall effect in doped semiconductor superlattices

Journal of Science: Advanced Materials and Devices, 2016
Based on the quantum kinetic equation method, the Hall effect in doped semiconductor superlattices (DSSL) has been theoretically studied under the influence of confined LO-phonons and the laser radiation.
Nguyen Quang Bau, Do Tuan Long
doaj   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

Advanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan, Rahul Gupta, Reshma Peremadathil Pradeep, Fabian Kammerbauer, Iryna Kononenko, Klemens Prügl, Michael Kirsch, Bernd Aichner, Santiago Helbig, Florian Bruckner, Claas Abert, Andrada Oana Mandru, Armin Satz, Gerhard Jakob, Hans Josef Hug, Mathias Kläui, Dieter Suess   +16 more
wiley   +1 more source