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We investigate the emergence of topological Hall-like (THE-like) signals in disordered multidomain ferromagnets. Non-monotonic behavior in Hall resistivity, commonly attributed to topological spin textures such as skyrmions, is produced in…

介观与纳米尺度物理 · 物理学 2025-02-28 Houssam Sabri , Benjamin E. Carlson , Sergey S. Pershoguba , Jiadong Zang

In order to probe the influence of the surface-induced anisotropy on the impurity spin magnetization, we measure the anomalous Hall effect in thin AuFe films at magnetic fields up to 15 T. The observed suppression of the anomalous Hall…

介观与纳米尺度物理 · 物理学 2009-10-31 E. Seynaeve , K. Temst , F. G. Aliev , C. Van Haesendonck , V. N. Gladilin , V. M. Fomin , J. T. Devreese

The rise of graphene marks the advent of two-dimensional atomic crystals, which have exhibited a cornucopia of intriguing properties, such as the integer and fractional quantum Hall effects, valley Hall effect, charge density waves and…

介观与纳米尺度物理 · 物理学 2017-08-09 Jingjing Niu , Qingqing Ji , Baomin Yan , Mingqiang Li , Peng Gao , Zhongfan Liu , Yanfeng Zhang , Dapeng Yu , Xiaosong Wu

Orthorhombic SrIrO3 is a typical spin-orbit-coupling correlated metal that shows diversified physical properties under the external stimuli. Here nonlinear Hall effect and weakly temperature-dependent resistance are observed in a SrIrO3…

The L1_2-phase non-collinear antiferromagnet (AFM) Mn_3Ir has emerged as a pioneering platform for realizing the zero-field anomalous Hall effect (AHE), thereby catalyzing rapid advances in antiferromagnetic spintronics. Despite its…

材料科学 · 物理学 2025-10-01 Xin Gu , Ruoqi Wang , Bo Zhao , Haofu Wen , Kunquan Hong , Shijun Yuan , Taishi Chen , Jinlan Wang

PdCoO$_2$, being highly conductive and anisotropic, is a promising material for fundamental and technological applications. Recently, reduced PdCoO$_2$ thin films were shown to exhibit ferromagnetism after hydrogen annealing. Here, we…

材料科学 · 物理学 2022-04-06 Yiting Liu , Gaurab Rimal , Pratyankara Narasimhan , Seongshik Oh

We investigate the stability of the Hall-MHD system and determine its importance for neutron stars at their birth, when they still consist of differentially rotating plasma permeated by extremely strong magnetic fields. We solve the…

太阳与恒星天体物理 · 物理学 2015-06-04 T. Kondic , G. Ruediger , R. Arlt

Antiferromagnetic Mn$_{3}$Ge with a non-collinear Kagome structures present exciting prospects for exploring Berry curvature driven anomalous Hall effects (AHE). Despite substantial progress in bulk systems, the synthesis of crystalline…

介观与纳米尺度物理 · 物理学 2025-02-05 Indraneel Sinha , Purba Dutta , Nazma Firdosh , Shreyashi Sinha , Nirmal Ganguli , Sujit Manna

We envision that quantum spin Hall effect should be observed in $(111)$-oriented thin films of SnSe and SnTe topological crystalline insulators. Using a tight-binding approach supported by first-principles calculations of the band…

材料科学 · 物理学 2015-07-01 Shiva Safaei , Marta Galicka , Perla Kacman , Ryszard Buczko

Superlattice formation dictates the physical properties of many materials, including the nature of the ground state in magnetic materials. Chemical composition is commonly considered to be the primary determinant of superlattice identity,…

We revealed the electrical transport through surface ferromagnetic states of a nonmagnetic metal PdCoO2. Electronic reconstruction at the Pd-terminated surface of PdCoO2 induces Stoner-like ferromagnetic states, which could lead to…

强关联电子 · 物理学 2020-03-18 T. Harada , K. Sugawara , K. Fujiwara , S. Ito , T. Nojima , T. Takahashi , T. Sato , A. Tsukazaki

Spin Hall magnetoresistance (SMR) measurements provide a way to probe the surface spin structure of insulating magnetic materials. Such measurements produce resistance signals of the form {$\Delta$}R {$\propto$}…

In this work, the BiFeO3 (BFO)/SrRuO3 (SRO) heterostructure was fabricated and the anomalous Hall effect (AHE) was investigated the in BFO/SRO. It is found the nonmonotonic anomalous Hall resistivity behavior in BFO/SRO is originated from…

强关联电子 · 物理学 2019-10-08 Z. Y. Ren , Z. Yuan , L. F. Wang , F. Shao , P. F. Liu , J. Teng , K. K. Meng , X. G. Xu , J. Miao , Y. Jiang

The Heusler compound Co2MnGa is a topological semimetal with intriguing electronic and magnetic properties, making it a promising candidate for spintronic applications. This study systematically investigates the effects of substrate…

Quantum anomalous Hall effect(QAHE) can only be realized at extremely low temperatures in magnetically doped topological insulators(TIs) due to limitations inherent with the doping precess. In an effort to boost the quantization temperature…

介观与纳米尺度物理 · 物理学 2019-06-17 Xiong Yao , Bin Gao , Myung-Geun Han , Deepti Jain , Jisoo Moon , Jae Wook Kim , Yimei Zhu , Sang-Wook Cheong , Seongshik Oh

We report a combined study of imaging the antiferromagnetic (AFM) spin structure and measuring the spin Hall magnetoresistance (SMR) in epitaxial thin films of the insulating non-collinear antiferromagnet SmFeO$_3$. X-ray magnetic linear…

A comprehensive study of magnetoresistance and Hall effect has been performed for the set of the single crystals of non-magnetic metal LuB12 with the Jahn-Teller instability of the boron cage and dynamic charge stripes forming along <110>…

Electron transport combined with magnetism has gained more attention to the spintronics community in the last few decades. Among them, the topological Hall effect (THE), which arises due to the emergent magnetic field of a non-trivial…

材料科学 · 物理学 2025-07-22 Brindaban Ojha , Shaktiranjan Mohanty , Bhuvneshwari Sharma , Subhankar Bedanta

Magnetism and spin-orbit coupling (SOC) are two quintessential ingredients underlying novel topological transport phenomena in itinerant ferromagnets. When spin-polarized bands support nodal points/lines with band degeneracy that can be…

We report the evolution of crystallographic structure, magnetic ordering and electronic transport in thin films of full-Heusler alloy Co$_2$MnSi deposited on (001) MgO with annealing temperatures ($T_A$). By increasing the $T_A$ from…

材料科学 · 物理学 2013-06-03 Himanshu Pandey , R. C. Budhani