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相关论文: Polymorphic nanowires of magnetic shape memory MnA…

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Strongly correlated ground states and exotic quasiparticle excitations in low-dimensional systems are central research topics in the solid state research community. The present work develops a new layered material and explores the physical…

强关联电子 · 物理学 2023-02-09 Xianghan Xu , Guangming Cheng , Danrui Ni , Xin Gui , Weiwei Xie , Nan Yao , R. J. Cava

Nanowires play a pivotal role across a spectrum of disciplines such as nanoelectromechanical systems, nanoelectronics, and energy applications. As nanowires continue to diminish in dimensions, their mechanical characteristics are…

材料科学 · 物理学 2023-08-29 Sina Zare Pakzad , Mohammad Nasr Esfahani , B. Erdem Alaca

A kinetic Monte Carlo approach is applied to study physical mechanisms responsible for the breakup of nanowires with the diamond cubic crystal structure into a chain of nanoparticles discovered in preceding experiments on Silicon nanowires.…

材料科学 · 物理学 2020-02-18 Vyacheslav N. Gorshkov , Vladimir V. Tereshchuk , Pooya Sareh2

The influence of pre-strain and temperature on the superior properties exhibited by an Nb nanowire embedded in a NiTi shape memory alloy (SMA) are investigated via molecular dynamics simulations. To this end, a new Nb-Ni-Ti ternary…

材料科学 · 物理学 2022-03-02 Jung Soo Lee , Won-Seok Ko , Blazej Grabowski

Two-dimensional (2D) materials enable new types of magnetic and electronic phases mediated by their reduced dimensionality like magic-angle induced phase transitions, 2D Ising antiferromagnets and ferromagnetism in 2D atomic layers and…

The sensitive correlation between optical parameters and strain in Mo$S_2$ results in a totally different approach to tune the optical properties. Usually, an external source of strain is employed to monitor the optical and vibrational…

介观与纳米尺度物理 · 物理学 2020-01-31 Shubham Bhagat , Shivani Sharma , Jasvir Singh , Sandeep Sharma

Tailoring magnetoresistance and magnetic anisotropy in van der Waals magnetic materials is essential for advancing their integration into technological applications. In this regard, strain engineering has emerged as a powerful and versatile…

Increasing amounts of information force the continuous improvement of information storage and processing technologies, further device miniaturization, and their efficiency increase. Magnetic skyrmions, topological quasiparticles, and the…

介观与纳米尺度物理 · 物理学 2022-04-13 Mateusz Zelent , Mathieu Moalic , Michal Mruczkiewicz , Xiaoguang Li , Yan Zhou , Maciej Krawczyk

High-throughput density functional calculations are used to investigate the effect of interstitial B, C and N atoms on 21 alloys reported to crystallize in the cubic Cu$_3$Au structure. It is shown that the interstitials can have a…

材料科学 · 物理学 2020-05-13 Ingo Opahle , Harish K. Singh , Jan Zemen , Oliver Gutfleisch , Hongbin Zhang

Nanoscale magnetic junction provides a useful approach to act as the building block for magnetoresistive random access memories (MRAM), where one of the key issues is to control the magnetic domain configuration. Here, we study the domain…

计算物理 · 物理学 2017-08-22 Junlin Wang , Xichao Zhang , Xianyang Lu , Jason Zhang , Hua Ling , Jing Wu , Yan Zhou , Yongbing Xu

We predict the existence of a new metastable magnetization state in a single-domain nanomagnet with uniaxial shape anisotropy. It emerges when a spin-polarized current, delivering a spin-transfer-torque, is injected into the nanomagnet. It…

介观与纳米尺度物理 · 物理学 2012-10-18 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha

Speed and reliability of magnetic domain wall (DW) motion are key parameters that must be controlled to realize the full potential of DW-based magnetic devices for logic and memory applications. A major hindrance to this is extrinsic DW…

介观与纳米尺度物理 · 物理学 2021-12-07 M. Schøbitz , O. Novotny , B. Trapp , S. Bochmann , L. Cagnon , C. Thirion , A. Massebœuf , E. Mossang , O. Fruchart , J. Bachmann

Influence of disorder, antisite defects, martensite transition and compositional variation on the magnetic properties and electronic structure of Mn$_2$NiGa and Mn$_{1+x}$Ni$_{2-x}$Ga magnetic shape memory alloys have been studied by using…

材料科学 · 物理学 2015-06-17 Sunil Wilfred D'Souza , Tufan Roy , Sudipta Roy Barman , Aparna Chakrabarti

Typical device architectures in polymer-based optoelectronic devices, such as field effect transistors organic light emitting diodes and photovoltaic cells include sub-100 nm semiconducting polymer thin-film active layers, whose…

We have used the results of micromagnetic simulations to investigate the effects of nanowire geometry and domain wall magnetization structure on the characteristic parameters of magnetic atom traps formed by domain walls in planar…

In our present publication we will continue studying the effects of the magnetostatic energy on the magnetization behavior of FMSMAs recently started in some our publications. Our method is based on the direct minimization of our new…

材料科学 · 物理学 2021-11-15 A. A. Likhachev , Yu. N. Koval

In a one-dimensional ferromagnet-superconductor nanowire, magnetism can suppress superconductivity except where the Zeeman field is suppressed, for example domain wall superconductivity (DWS) near magnetic domain walls or…

One of the most intriguing properties of magnonic systems is their reconfigurability, where an external magnetic field alters the static magnetic configuration to influence magnetization dynamics. In this paper, we present an alternative…

介观与纳米尺度物理 · 物理学 2024-11-04 Julia Kharlan , Krzysztof Szulc , Jarosław W. Kłos , Grzegorz Centała

We show that applying strain on half-doped manganites makes it possible to tune the system to the proximity of a metal-insulator transition and thereby generate a colossal magnetoresistance (CMR) response. This phase competition not only…

强关联电子 · 物理学 2013-04-11 Anamitra Mukherjee , William S. Cole , Patrick Woodward , Mohit Randeria , Nandini Trivedi

Functionalities in crystalline materials are determined by 3-dimensional collective interactions of atoms. The confinement of dimensionality in condensed matter provides an exotic research direction to understand the interaction of atoms,…