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Strain applied to a condensed-matter system can be used to engineer its excitation spectrum via artificial gauge fields, or it may tune the system through transitions between different phases. Here we demonstrate that strain tuning of the…

Strongly Correlated Electrons · Physics 2022-03-28 Mary Madelynn Nayga , Matthias Vojta

Strain engineering is a very effective method to tune electronic, optical, topological and thermoelectric properties of materials. In this work, we systematically study biaxial strain dependence of electronic structures and thermoelectric…

Materials Science · Physics 2016-07-19 San-Dong Guo , Lun Zhang

The magnetic properties of black phosphorene nanoribbons are investigated using static and dynamical mean-field theory. Besides confirming the existence of ferromagnetic/antiferromagnetic edge magnetism, our detailed calculations using…

Strongly Correlated Electrons · Physics 2021-02-11 Javad Vahedi , Robert Peters

We report on a comprehensive investigation of the effects of strain and film thickness on the structural and magnetic properties of epitaxial thin films of the prototypal $J_\mathrm{eff}=1/2$ compound Sr$_2$IrO$_4$ by advanced X-ray…

Quasi-two dimensional transition metal dichalcogenides (TMD) exhibit dramatic properties that may transform electronic and photonic devices. We report on how the anomalously large magnetoresistance (MR) observed under high magnetic field in…

Materials Science · Physics 2017-12-21 Junjie Yang , Jonathan Colen , Jun Liu , Manh Cuong Nguyen , Gia-Wei Chern , Despina Louca

We investigate the impact of mechanical strains and a perpendicular electric field on the electronic and magnetic ground-state properties of two-dimensional monolayer CrI$_3$ using density functional theory. We propose a minimal spin model…

Materials Science · Physics 2020-09-23 Sahar Izadi Vishkayi , Zahra Torbatian , Alireza Qaiumzadeh , Reza Asgari

Antiferromagnets have a number of favourable properties as active elements in spintronic devices, including ultra-fast dynamics, zero stray fields and insensitivity to external magnetic fields . Tetragonal CuMnAs is a testbed system in…

CrSBr, a layered anisotropic van der Waals antiferromagnet, has recently emerged as a versatile platform where strong coupling between optical excitations and magnetic order enables magneto-optical control in low dimensions. While…

External magnetic fields provide a macroscopic control mechanism to influence the microstructure of polycrystalline materials. We model the influence of strong magnetic fields on grain growth in thin films with a magnetic extended phase…

Materials Science · Physics 2023-01-02 Rainer Backofen , Axel Voigt

CuFeS$_2$ is an altermagnetic semiconductor that is lattice-matched with silicon and has a high N\'eel temperature. It is nonpolar and magnetically compensated in its structural ground state. However, the crystal belongs to a magnetic…

We investigated magnetic textures in a Sc-doped hexaferrite film by means of phase microscopy (PM) with a hole-free phase plate in a transmission electron microscope. In a zero magnetic field, the stripe-shaped magnetic domains coexist with…

Materials Science · Physics 2021-05-04 Atsuhiro Kotani , Ken Harada , Marek Malac , Hiroshi Nakajima , Kosuke Kurushima , Shigeo Mori

Implementation of antiferromagnetic compounds as active elements in spintronics has been hindered by their insensitive nature against external perturbations which causes difficulties in switching among different antiferromagnetic spin…

Structural distortions in nano-materials can induce dramatic changes in their electronic properties. This situation is well manifested in graphene, a two-dimensional honeycomb structure of carbon atoms with only one atomic layer thickness.…

Mesoscale and Nanoscale Physics · Physics 2016-08-17 N. -C. Yeh , C. -C. Hsu , M. L. Teague , J. -Q. Wang , D. A. Boyd , C. -C. Chen

Synthetic ferrimagnets are an attractive materials class for spintronics as they provide access to all-optical switching of magnetization and, at the same time, allow for ultrafast domain wall motion at angular momentum compensation. In…

Altermagnetism exhibits advantages over both ferromagnetic and antiferromagnetic counterparts by enabling spin splitting within antiferromagnetic materials. Currently, it is established that valley polarization in altermagnetism remains…

Materials Science · Physics 2024-10-24 Chen Chen , Xiaoyang He , Qizhen Xiong , Chuye Quan , Haojie Hou , Shilei Ji , Jianping Yang , Xing'ao Li

The structural flexibility of low dimensional nanomaterials offers unique opportunities for studying the impact of strain on their physical properties and for developing innovative devices utilizing strain engineering. A key towards such…

Mesoscale and Nanoscale Physics · Physics 2015-11-03 Fen Guan , Piranavan Kumaravadivel , Dmitri V. Averin , Xu Du

Intrinsic bilayer graphene is a gapless semimetal. Under the application of a bias field it becomes a semiconductor with a direct band gap that is proportional to the applied field. Under a layer-asymmetric strain (where the upper layer…

Mesoscale and Nanoscale Physics · Physics 2014-12-04 J. A. Crosse

We study the effect of substrate induced strain on the structural, transport, optical and electronic properties of Sr$_2$CoNbO$_6$ double perovskite thin films. The reciprocal space mapping, $\phi$-scan and high-resolution…

Materials Science · Physics 2020-08-19 Ajay Kumar , Rishabh Shukla , Akhilesh Pandey , Sandeep Dalal , M. Miryala , K. Ueno , M. Murakami , R. S. Dhaka

We report on the structural and magnetic properties of single and double atomic layers of Mn on a clean and unreconstructed Nb(110) substrate. Low-temperature scanning tunneling spectroscopy measurements reveal a proximity-induced…

Motivated by recent experimental work on magnetic properties of Si-MOSFETs, we report a calculation of magnetisation and susceptibility of electrons in an inversion layer, taking into account the co-ordinate dependence of electron wave…

Mesoscale and Nanoscale Physics · Physics 2015-12-10 D. I. Golosov