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Transport signatures of exchange gap opening because of magnetic proximity effect (MPE) are reported for bilayer structures of Bi2Se3 thin films on yttrium iron garnet (YIG) and thulium iron garnet (TmIG) of perpendicular magnetic…

Applied Physics · Physics 2019-07-31 S. R. Yang , Y. T. Fanchiang , C. C. Chen , C. C. Tseng , Y. C. Liu , M. X. Guo , M. Hong , S. F. Lee , J. Kwo

Magnetism in graphene is an emerging field that has received much theoretical attention. In particular, there have been exciting predictions for induced magnetism through proximity to a ferromagnetic insulator as well as through localized…

We report on our study of the electron interaction effects in topological two-dimensional (2D) materials placed in a quantizing magnetic field. Taking our cue from a recent experimental report, we consider a particular case of bismuthene…

Mesoscale and Nanoscale Physics · Physics 2025-04-03 Vadym Apalkov , Wenchen Luo , Tapash Chakraborty

Ferromagnetic metals and insulators are widely used for generation, control and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures…

Engineering magnetic anisotropy in a ferro- or ferrimagnetic (FM) thin film is crucial in spintronic device. One way to modify the magnetic anisotropy is through the surface of the FM thin film. Here, we report the emergence of a…

Van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to the…

Mesoscale and Nanoscale Physics · Physics 2022-12-15 Livio Ciorciaro , Martin Kroner , Kenji Watanabe , Takashi Taniguchi , Atac Imamoglu

Interfacing topological insulators (TIs) with magnetic insulators (MIs) has been widely used to study the interaction between topological surface states and magnetism. Previous transport studies typically interpret the suppression of weak…

Mesoscale and Nanoscale Physics · Physics 2022-10-19 Yang Wang , Sivakumar V. Mambakkam , Yue-Xin Huang , Yong Wang , Yi Ji , Cong Xiao , Shengyuan A. Yang , Stephanie A. Law , John Q. Xiao

The emergence of topological order in graphene is in great demand for the realization of quantum spin Hall states. Recently, it is theoretically proposed that the spin textures of surface states in topological insulator can be directly…

Mesoscale and Nanoscale Physics · Physics 2017-07-06 Liang Zhang , Ben-Chuan Lin , Yan-Fei Wu , Jun Xu , Dapeng Yu , Zhi-Min Liao

We investigate the electronic band structure and the proximity exchange effect in bilayer graphene on a family of ferromagnetic multilayers Cr$_2$X$_2$Te$_6$, X=Ge, Si, and Sn, with first principles methods. In each case the intrinsic…

Mesoscale and Nanoscale Physics · Physics 2018-07-10 Klaus Zollner , Martin Gmitra , Jaroslav Fabian

Achieving altermagnetism (AM) in two-dimensional materials is crucial for advancing the development of novel spintronic devices. This study introduces an innovative strategy to realize AM in monolayer materials by adsorbing non-magnetic…

Materials Science · Physics 2025-08-28 Han-Bing Li , Zhi-Gang Shao

Atomically thin materials offer multiple opportunities for layer-by-layer control of their electronic properties. While monolayer graphene (MLG) is a zero-gap system, Bernal-stacked bilayer graphene (BLG) acquires a finite band gap when the…

Magnetoelectric effect is a fundamental physics phenomenon that synergizes electric and magnetic degrees of freedom to generate distinct material responses like electrically tuned magnetism, which serves as a key foundation of the emerging…

Recently, a new two-dimensional carbon allotrope, named biphenylene network (BPN) was experimentally realized. The BPN structure is composed of four-, six-, and eight-membered rings of sp$^2$-hybridized carbon atoms. In this work, we…

The biphenylene network (BPN) is a notable achievement in recent fabrication endeavors for conceiving new 2D materials. The stability of its boron nitride counterpart, BN-BPN, has been confirmed through numerical investigations. In this…

Materials Science · Physics 2023-10-12 Kleuton Antunes Lopes Lima , Luiz Antonio Ribeiro Junior

We present a study of the damping and spin pumping properties of CoFeB/X/Pt systems with $\rm X=Al,Cr$ and $\rm Ta$. We show that the total damping of the CoFeB/Pt systems is strongly reduced when an interlayer is introduced independently…

Graphene is known to exhibit a pronounced photo-thermoelectric effect (PTE) in its in-plane carrier transport and attracting attention toward various optoelectronic applications. In this study, we demonstrate an out-of-plane PTE by…

Mesoscale and Nanoscale Physics · Physics 2024-08-23 Sabin Park , Rai Moriya , Yijin Zhang , Kenji Watanabe , Takashi Taniguchi , Tomoki Machida

The first observation of microwave magnetoelectric (ME) interactions through ferromagnetic resonance (FMR) in bilayers of single crystal ferromagnetic-piezoelectric oxides and a theoretical model for the effect are presented. An electric…

Materials Science · Physics 2009-11-10 S. Shastry , G. Srinivasan , M. I. Bichurin , V. M. Petrov , A. S. Tatarenko

Search for ultrathin magnetic film with large perpendicular magnetocrystalline anisotropy (PMA) has been inspired for years by the continuous miniaturization of magnetic units in spintronics devices. The common magnetic materials used in…

Materials Science · Physics 2018-06-07 Xiaoxuan Ma , Jun Hu

Proximity effects allow for the adjustment of magnetic properties in a physically elegant way. If two thin ferromagnetic (FM) films are brought into contact, electronic coupling alters their magnetic exchange interaction at their interface.…

The exfoliation of layered magnetic materials generates atomically thin flakes characterized by an ultrahigh surface sensitivity, which makes their magnetic properties tunable via external stimuli, such as electrostatic gating and proximity…