Ji‐Eun Lee

Evidence for strong electronic correlations in the bulk state of grey arsenic

Minhee Kang, Hayoon Im, Ji‐Eun Lee, Sung-Kwan Mo et autres

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Absence of magnetic order in epitaxial RuO 2 revealed by x-ray linear dichroism

Siyu Wang, Chao Wang, Yanan Yuan, Jiangxiao Li et autres

Recently the topic of altermagnetism has attracted tremendous attention, and RuO2 has been demonstrated to be one of the most promising altermagnetic candidates. However, disputes still remain on the existence of magnetic order in RuO2. Here in this work, we employ x-ray …

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Terrace‐Edge‐Induced Domain Nucleation in Room‐Temperature 2D Magnetic Van Der Waals Heterostructures

Jiaxuan Gu, W. G. Kim, Ji‐Eun Lee, Weilun L. Chao et autres

Abstract Terrace‐edges, which are step‐like height discontinuities formed during layer stacking or exfoliation, can locally modify magnetic characteristics. Magnetic domain behavior and its structural dependence in a 2D van der Waals (vdW) heterostructure composed of two distinct room‐temperature ferromagnets: Fe 3 GaTe …

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Topological Surface Superconductivity via Josephson Coupling in Bi 2 Te 3 /Nb

Joseph Andrew Hlevyack, Syu‐You Guan, Yen-Chen Tsui, Wenyu Chen et autres

High Resolution Image Download MS PowerPoint Slide Since discoveries of protected conducting surface states, topological superconducting qubits have enchanted quantum science as prime elements in future fault-tolerant devices, particularly those based on Josephson junctions containing topological insulators. Still, Josephson coupling is often …

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Dichotomous Temperature Response in the Electronic Structure of Epitaxially Grown Altermagnet MnTe

Ji‐Eun Lee, Yong Zhong, Qile Li, Mark T. Edmonds et autres

The altermagnet candidate MnTe has recently gained significant interest due to its unconventional magnetic ordering. One of the key features of altermagnetism is the momentum-dependent spin-split band and its temperature-dependent evolution. Yet a fully momentum-resolved experimental investigation, including out-of-plane direction, is still …

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Spin Texture Control and Magnetic Gap Engineering in a Ferromagnetic Insulator-Topological Insulator Sandwiched Heterostructure

Mohammad T. H. Bhuiyan, Qile Li, James Blyth, Ji‐Eun Lee et autres

Quantum materials combining magnetism and topological fermions are a key platform for low-energy electronics, spintronics, and quantum phases that break time-reversal symmetry (TRS), such as the quantum anomalous Hall effect (QAHE). Coupling a topological insulator to a magnetic material allows proximity magnetization …

Topological surface states of semimetal TaSb2

Ji‐Eun Lee, Yu Liu, Jinwoong Hwang, Choongyu Hwang et autres

Abstract Topological surface states, protected by the global symmetry of the materials, are the keys to understanding various novel electrical, magnetic, and optical properties. TaSb 2 is a newly discovered topological material with unique transport phenomena, including negative magnetoresistance and resistivity plateau, …

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Uniform Diffusion of Cooper Pairing Mediated by Hole Carriers in Topological Sb 2 Te 3 /Nb

Joseph Andrew Hlevyack, Sahand Najafzadeh, Yao Li, Tsubaki Nagashima et autres

Spin-helical Dirac Fermions at a doped topological insulator’s boundaries can support Majorana quasiparticles when coupled with s -wave superconductors, but in n -doped systems, the requisite induced Cooper pairing in topological states is often buried at heterointerfaces or complicated by degenerate coupling …

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Spin-orbit-splitting-driven nonlinear Hall effect in NbIrTe4

Ji‐Eun Lee, Aifeng Wang, Shuzhang Chen, Jinwoong Hwang et autres

The Berry curvature dipole (BCD) serves as a one of the fundamental contributors to emergence of the nonlinear Hall effect (NLHE). Despite intense interest due to its potential for new technologies reaching beyond the quantum efficiency limit, the interplay between BCD and …

Controlling structure and interfacial interaction of monolayer TaSe2 on bilayer graphene

Hyobeom Lee, Hayoon Im, Byoung Ki Choi, Kyoungree Park et autres

Tunability of interfacial effects between two-dimensional (2D) crystals is crucial not only for understanding the intrinsic properties of each system, but also for designing electronic devices based on ultra-thin heterostructures. A prerequisite of such heterostructure engineering is the availability of 2D crystals …

Spin-orbit-splitting-driven nonlinear Hall effect in NbIrTe4

Ji‐Eun Lee, Aifeng Wang, Shuzhang Chen, M. Kwon et autres

Abstract The Berry curvature dipole (BCD) serves as a one of the fundamental contributors to emergence of the nonlinear Hall effect (NLHE). Despite intense interest due to its potential for new technologies reaching beyond the quantum efficiency limit, the interplay between BCD …

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Controlling structure and interfacial interaction of monolayer TaSe2 on bilayer graphene

Hyobeom Lee, Hayoon Im, Byoung Ki Choi, Kyoungree Park et autres

Abstract Tunability of interfacial effects between two-dimensional (2D) crystals is crucial not only for understanding the intrinsic properties of each system, but also for designing electronic devices based on ultra-thin heterostructures. A prerequisite of such heterostructure engineering is the availability of 2D …

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