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相关论文: Anomalous Hall Effect in perpendicularly magnetize…

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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 on giant positive magnetoresistance effect observed in VOx thin films, epitaxially grown on SrTiO3 substrate. The MR effect depends strongly on temperature and oxygen content and is anisotropic. At low temperatures its magnitude…

强关联电子 · 物理学 2009-11-10 A. D. Rata , V. Kataev , D. Khomskii , T. Hibma

Measurements of the Hall effect and the resistivity on precisely-patterned YBCO thin films in magnetic fields B from 0.5 to 6 T oriented parallel to the sample crystallographic c axis reveal a sign reversal of the Hall coefficient for B <=…

超导电性 · 物理学 2009-11-10 I. Puica , W. Lang , W. Goeb , R. Sobolewski

We report a measurement for the anomalous Nernst effects induced by a temperature gradient in [CoSiB/Pt] multilayer films with perpendicular magnetic anisotropy. The Nernst voltage shows a characteristic hysteresis which reflects the…

材料科学 · 物理学 2013-10-01 O. Kelekci , H. N. Lee , T. W. Kim , H. Noh

We demonstrate precise control of magnetism in MnBi2Te4 thin films through careful synthesis by molecular beam epitaxy, achieving minimal defects and accurate layer thickness control. By optimizing Mn-Bi-Te ratios and growth temperatures,…

Temperature-dependence and magnetic field-dependence of the Hall effect and the magnetic property in manganese-oxide thin films are studied. The spontaneous magnetization and the Hall resistivity are obtained for a various of magnetic…

凝聚态物理 · 物理学 2009-10-28 Liang-Jian Zou

We study Hall effect in sputtered NixPt1-x thin films with different Ni concentrations. Temperature, magnetic field and angular dependencies are analyzed and the phase diagram of NiPt thin films is obtained. It is found that films with…

材料科学 · 物理学 2015-03-19 T. Golod , A. Rydh , V. M. Krasnov

The anomalous Hall effect (AHE), a hallmark of time-reversal symmetry breaking, has been reported in rutile RuO2, a debated metallic altermagnetic candidate. Previously, AHE in RuO2 was observed only in strain-relaxed thick films under…

In this work we are investigating the effect of strain in ultrathin Mn-Ga thin films on the magnetic properties at room temperature. Two different Mn-Ga compositions of which one is furthermore doped with Co were grown on Cr buffered MgO…

材料科学 · 物理学 2015-06-16 Albrecht Köhler , Ivan Knez , Daniel Ebke , Claudia Felser , Stuart S. P. Parkin

The mixed-state Hall effect was examined in a Ba(Fe1-xCox)2As2 epitaxial film with a high critical current density. The transverse resistivity {\rho}xy and the longitudinal resistivity {\rho}xx follow power law scaling {\rho}xy =…

We have investigated transport properties of CrO2 thin films deposited on TiO2 and sapphire substrates. The films are good metals down to low temperatures. The residual resistivity is of the order of 6 micro-ohhmcm for films deposited on…

强关联电子 · 物理学 2015-06-15 M. S. Anwar , J. Aarts

The observation of a sizable anomalous Hall effect in magnetic materials with vanishing magnetization has renewed interest in understanding and engineering this phenomenon. Antiferromagnetic antiperovskites are one of emerging material…

The periodic response of magnetoresistance to an externally tunable parameter, such as magnetic field or chemical composition, in the bulk or an artificially designed material has been exploited for technological applications as well as to…

材料科学 · 物理学 2012-09-04 S. Dickert , D. K. Singh , R. Thantirige , M. T. Tuominen

The anomalous Hall coefficient Rs has been studied for the reentrant spin glass system Fe0.7Al0.3 by measuring the magnetization M and the Hall resistivity r_H. We have found that R_s exhibits anomalous temperature dependence at the…

强关联电子 · 物理学 2009-11-07 Taketomo Kageyama , Natsuki Aito , Satoshi Iikubo , Masatoshi Sato

Motivated by the recently observed topological Hall effect in ultra-thin films of SrRuO$_3$ (SRO) grown on SrTiO$_3$ (STO) [001] substrate, we investigate the magnetic ground state and anomalous Hall response of the SRO ultra-thin films by…

材料科学 · 物理学 2020-06-24 K. Samanta , M. Ležaić , M. Merte , F. Freimuth , S. Blügel , Y. Mokrousov

Systematic transport measurements have been performed on a series of La0.67Ca0.33MnO3 (LCMO) thin films with varying degrees of anisotropic strain. The strain is induced via epitaxial growth on NdGaO3(001) substrates and varied by…

强关联电子 · 物理学 2013-12-24 Liuqi Yu , Lingfei Wang , Xiaohang Zhang , W. B. Wu , S. von Molnár , Z. Fisk , P. Xiong

The transverse magnetoresistance of thin films of the Diluted Magnetic Semiconductor Zn$_{1-x}$Co$_{x}$O:Al on glass was studied for temperatures in the range of 5 to 100 K. Measurements were made on thin films grown by rf magnetron…

介观与纳米尺度物理 · 物理学 2017-05-26 R. Martínez-Valdez , H. J. Jiménez-González , L. Angelats-Silva , M. Tomar

In situ transport measurements have been made on ultrathin ($<$100 {\AA} thick) polycrystalline Fe films as a function of temperature and magnetic field for a wide range of disorder strengths. For sheet resistances $R_{xx}$ less than $\sim…

无序系统与神经网络 · 物理学 2009-11-11 P. Mitra , A. F. Hebard , K. A. Muttalib , P. Woelfle

The electrical resistivity, anisotropic magnetoresistance (AMR), and anomalous Hall effect of ferromagnetic Mn5Ge3, Mn5Ge3C0.8, and Mn5Si3C0.8 thin films has been investigated. The data show a behavior characteristic for a ferromagnetic…

介观与纳米尺度物理 · 物理学 2014-09-26 Christoph Sürgers , Gerda Fischer , Patrick Winkel , Hilbert v. Löhneysen

The anomalous Hall effect (AHE) in strongly disordered magnetic systems has been buried in persistent confusion despite its long history. We report the AHE in perpendicularly magnetized L10-MnAl epitaxial films with variable orbital…

强关联电子 · 物理学 2016-05-10 L. J. Zhu , S. H. Nie , J. H. Zhao