The quest for quantum spin liquids has garnered significant attention due to their rich physics and disruptive prospects in quantum communication and computation. Spin-orbit coupling, electron correlation, and structural distortion play critical roles in the candidate materials that eventually order antiferromagnetically at low temperatures. We introduce quantum electron confinement to the existing complexity and explore the interplay between Heisenberg and Kitaev interactions in ultrathin \ce{Na2IrO3} layers using first-principles calculations. The zigzag antiferromagnetic state in the monolayer is reinforced and pushed further away from the Kitaev spin liquid state due to the increased strength of Heisenberg and off-diagonal exchange interactions. In contrast, the carrier-doped flakes undergo a Mott insulator-to-metal transition accompanied by an antiferromagnetic to ferromagnetic transition. These findings present exciting prospects for comprehending magnetism in a novel two-dimensional framework of non-van der Waals correlated oxide flakes.
Substrate tuning of the structural and electronic transition in thin flakes of the excitonic insulator candidate Ta$_2$NiSe$_5$
Max Planck Institute for Solid State Research（马克斯·普朗克固体研究所）；Institute for Functional Matter and Quantum Technologies, University of Stuttgart（斯图加特大学功能物质与量子技术研究所）；Department of Physics, University of Tokyo（东京大学物理系）
Dimensionality-Driven Electronic and Orbital Transitions Mediating Interfacial Magnetism in LaNiO3/CaMnO3 Observed In Situ
Temple University（天普大学）；Flatiron Institute（平顿研究所）；Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室）；Cornell University（康奈尔大学）；University of California, Berkeley（加州大学伯克利分校）；Rutgers University（罗格斯大学）；Advanced Light Source, Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室先进光源中心）；Deutsches Elektronen-Synchrotron, DESY（德国电子同步辐射中心）；CNR-IOM Istituto Officina dei Materiali（意大利国家研究委员会材料研究所）；Università degli Studi di Padova（帕多瓦大学）；AREA Science Park（AREA科学园）；Columbia University（哥伦比亚大学）
Polymorph Engineering of the Layered Rare-Earth Magnet GdAlGe
National Research Center “Kurchatov Institute”（库尔恰托夫国家研究中心）；Far Eastern Federal University（远东联邦大学）；Institute of High Technologies and Advanced Materials, Far Eastern Federal University（远东联邦大学高等技术与先进材料研究所）；Institute of Automation and Control Processes FEB RAS（俄罗斯科学院远东分院自动化与控制过程研究所）；Kirensky Institute of Physics, Federal Research Center KSC SB RAS（基连斯基物理研究所，俄罗斯科学院西伯利亚分院科马罗夫科学中心联邦研究中心）
