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相关论文: Quantum linear magnetoresistance in NbTe2

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We report on measurements and a detailed analysis of the reversible magnetization of superconducting NbSe2 single crystals. By comparing the experimental data with Ginzburg Landau theory we show that superconductivity in NbSe2 cannot be…

超导电性 · 物理学 2010-07-21 M. Zehetmayer , H. W. Weber

The present work aims to address the electronic and magnetic properties of the intermetallic compound GdPd$_2$Bi through a comprehensive study of the structural, magnetic, electrical and thermal transport on a polycrystalline sample,…

In several parent iron-pnictide compounds the resistivity has an extended range of linear magnetic field dependence. We argue that there is a simple and natural explanation of this behavior. Spin density wave transition leads to…

超导电性 · 物理学 2013-09-02 A. E. Koshelev

Because of their complex Fermi surfaces, the identification of the physical phenomena contributing to electronic scattering in the Fe-based superconductors is a difficult task. Here, we report on the electrical resistivity,…

We study the quasiclassical magnetotransport of non-interacting fermions in two dimensions moving in a random array of strong scatterers (antidots, impurities or defects) on the background of a smooth random potential. We demonstrate that…

无序系统与神经网络 · 物理学 2009-11-07 A. D. Mirlin , D. G. Polyakov , F. Evers , P. Woelfle

We report the crystal growth by chemical vapor transport together with a thorough structural and magnetic characterization of the quasi-2D magnets (Fe$_{1-x}$Ni$_x$)$_2$P$_2$S$_6$ with $x_\textrm{Ni} = \textrm{0, 0.3, 0.5, 0.7, 0.9 & 1}$.…

Crystalline defects can modify quantum interactions in solids, causing unintuitive, even favourable, properties such as quantum Hall effect or superconducting vortex pinning. Here we present another example of this notion - an unexpected…

A magnetotransport study in magnetically doped (Cd,Mn)Te 2D quantum wells reveals an apparent metal-insulator transition as well as an anomalous intermediate phase just on its metallic side. This phase is characterized by colossal…

介观与纳米尺度物理 · 物理学 2010-01-10 J. Jaroszynski , T. Andrearczyk , G. Karczewski , J. Wróbel , T. Wojtowicz , Dragana Popovic , T. Dietl

By means of the first-principles calculations, we have studied in details the structural, elastic and electronic properties of the new tetragonal CaBe2Ge2-type 5.2K superconductor SrPt2As2 in comparison with two hypothetical SrPt2As2…

超导电性 · 物理学 2011-01-28 I. R. Shein , A. L. Ivanovskii

Commensurability oscillations in the magnetoresistivity of a two-dimensional electron gas in a two-dimensional lateral superlattice are studied in the framework of quasiclassical transport theory. It is assumed that the impurity scattering…

无序系统与神经网络 · 物理学 2009-11-07 A. D. Mirlin , E. Tsitsishvili , P. Woelfle

We report measurements on single crystals of orthorhombic CeNiGe2, which is found to exhibit highly anisotropic magnetic and transport properties. The magnetization ratio M(H//b)/M(H^b) at 2 K is observed to be about 18 at 4 T and the…

强关联电子 · 物理学 2009-11-07 M. H. Jung , N. Harrison , A. H. Lacerda , P. G. Pagliuso , J. L. Sarrao , J. D. Thompson

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

Intrinsic, two-dimensional (2D) ferromagnetic semiconductors are an important class of materials for spintronics applications. Cr$_2$X$_2$Te$_6$ (X = Si and Ge) semiconductors show 2D Ising-like ferromagnetism, which is preserved in…

强关联电子 · 物理学 2019-01-10 Yu Liu , C. Petrovic

Stoichiometric SnTe is theoretically a small gap semiconductor that undergoes a ferroelectric distortion on cooling. In reality however, crystals are always non-stoichiometric and metallic; the ferroelectric transition is therefore more…

We report two-dimensional quantum transport and Dirac fermions in YbMnBi2 single crystals. YbMnBi2 is a layered material with anisotropic conductivity and magnetic order below 290 K. Magnetotransport properties, nonzero Berry phase and…

介观与纳米尺度物理 · 物理学 2016-04-05 Aifeng Wang , I. Zaliznyak , Weijun Ren , Lijun Wu , D. Graf , V. O. Garlea , J. B. Warren , E. Bozin , Yimei Zhu , C. Petrovic

A new frontier in condensed matter physics is to stack atomically thin layered-materials with different properties and create intriguing phenomena which do not exist in any of the constituent layers. Transition metal dichalcogenide…

In this letter we report the observation of extremely large non-saturating linear magnetoresistance (MR) in Antimony(Sb) crystal. An extremely large magnetoresistance (XMR) of 43000% at 2K and large unsaturating MR$\sim\ $70% at room…

材料科学 · 物理学 2020-01-06 Mukesh Kumar Dasoundhi , Indu Rajput , Devendra Kumar , Archana Lakhani

Transition-metal dichalcogenides (WTe$_2$ and MoTe$_2$) have drawn much attention, recently, because of the nonsaturating extremely large magnetoresistance (XMR) observed in these compounds in addition to the predictions of likely type-II…

We performed the angle dependent magnetoresistance (MR), Hall effect measurements, the temperature dependent magneto-thermoelectric power (TEP) S(T) measurements, and the first-principles calculations to study the electronic properties of…

强关联电子 · 物理学 2017-06-21 F. C. Chen , H. Y. Lv , X. Luo , W. J. Lu , Q. L. Pei , G. T. Lin , Y. Y. Han , X. B. Zhu , W. H. Song , Y. P. Sun

Slow oscillations of the interlayer magnetoresistance observed in the layered organic metal $\beta $-(BEDT-TTF)$_2$IBr$_2$ are shown to originate from the slight warping of its Fermi surface rather than from independent small cyclotron…

凝聚态物理 · 物理学 2016-08-31 M. V. Kartsovnik , P. D. Grigoriev , W. Biberacher , N. D. Kushch , P. Wyder
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