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相关论文: Anomalous magnetization behavior in Ce(Fe,Si)2

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The magnetic, magneto-transport and ARPES studies of Fe and S co-doped Bi2Se3 were investigated. With doping concentration magneto-resistance (MR) gradually decreases and for a certain doping concentration giant negative MR is observed…

To understand the magnetic properties of Fe$_3$GeTe$_2$, we performed the detailed first-principles study. Contrary to the conventional wisdom, it is unambiguously shown that Fe$_3$GeTe$_2$ is not ferromagnetic but antiferromagnetic…

材料科学 · 物理学 2019-04-10 Seung Woo Jang , Min Yong Jeong , Hongkee Yoon , Siheon Ryee , Myung Joon Han

Electrical control of magnetism of a ferromagnetic semiconductor offers exciting prospects for future spintronic devices for processing and storing information. Here, we report observation of electrically modulated magnetic phase transition…

介观与纳米尺度物理 · 物理学 2020-06-19 Ivan. A. Verzhbitskiy , Hidekazu Kurebayashi , Haixia Cheng , Jun Zhou , Safe Khan , Yuan Ping Feng , Goki Eda

In this work a site diluted antiferromagntic Ising model in the FCC lattice is studied by Monte Carlo simulation. At low temperatures, we find that as the external field is increased the transition from the antiferromagnetic phase to the…

统计力学 · 物理学 2007-05-23 A. J. F. de Souza , F. G. B. Moreira , J. R. L. de Almeida

The present article concludes that a ferromagnetic sample could be considered like a paramagnetic system where the role of magnetic moments plays magnetic domains. Based on this conclusion and taking into account presence of an anisotropic…

材料科学 · 物理学 2016-07-18 R. Khachaturyan , V. Mekhitarian

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

We present results of ac susceptibility measurements highlighting the presence of thermal hysteresis and phase coexistence across the ferro-to antiferromagnetic transition in various CeFe$_2$ based pseudobinary systems. These results…

强关联电子 · 物理学 2009-10-31 Meghmalhar Manekar , S. B. Roy , P. Chaddah

We report the results of our detailed magnetotransport studies on single crystals of the antiferromagnetic heavy-fermion superconductor Ce$_3$PdIn$_{11}$. Electrical resistivity measurements, carried out in different magnetic field…

超导电性 · 物理学 2019-02-26 Debarchan Das , Daniel Gnida , Dariusz Kaczorowski

Using first principles calculations, we analyze structural and magnetic trends as a function of charge doping and pressure in BaFe$_2$As$_2$, and compare to experimentally established facts. We find that density functional theory, while…

超导电性 · 物理学 2015-05-18 M. D. Johannes , I. I. Mazin , D. S. Parker

The structure, magnetic and martensitic properties of Fe doped Ni-Mn-In magnetic shape memory alloys have been studied by differential scanning calorimetry, magnetization, resistivity, X-ray diffraction (XRD) and EXAFS. While…

材料科学 · 物理学 2015-06-23 D. N. Lobo , K. R. Priolkar , S. Emura , A. K. Nigam

FeSi is a curious example of a $d$-electron system that manifests many of the same phenomena associated with $f$-electron Kondo insulators, including conducting surface states with potentially non-trivial topology. Here we investigate the…

Identifying and characterizing systems with coupled and competing interactions is central to the development of physical models that can accurately describe and predict emergent behavior in condensed matter systems. This work demonstrates…

强关联电子 · 物理学 2016-10-19 Andrew F. May , Stuart Calder , David S. Parker , Brian C. Sales , Michael A. McGuire

We report the results of Mn substitution for Ni in CeNi0.8Bi2, (i.e. CeNi0.8-xMnxBi2). All the samples have an antiferromagnetic ordered state below TN = 5.0 K due to localized 4f-magnetic moment on the Ce ions. Besides this…

强关联电子 · 物理学 2015-06-19 Soo-Whan Kim , Kyu Joon Lee , D. T. Adroja , F. Demmel , J. W. Taylor , Myung-Hwa Jung

The recent discovery of ferromagnetic single-layer CrI3 creates ample opportunities for studying fundamental properties of atomically-thin magnets. By using first-principles calculations and model analysis, we show that a lateral strain…

介观与纳米尺度物理 · 物理学 2017-09-19 Fawei Zheng , Jize Zhao , Zheng Liu , Menglei Li , Mei Zhou , Shengbai Zhang , Ping Zhang

In this review, we present a summary of experimental studies of magnetism in Fe-based superconductors. The doping dependent phase diagram shows strong similarities to the generic phase diagram of the cuprates. Parent compounds exhibit…

超导电性 · 物理学 2010-05-19 M. D. Lumsden , A. D. Christianson

Impurity effects on the stability of a ferromagnetic metallic state in a bicritical-state manganite, (La0.7Pr0.3)0.65Ca0.35MnO3, on the verge of metal-insulator transition have been investigated by substituting a variety of transition-metal…

强关联电子 · 物理学 2009-11-13 H. Sakai , K. Ito , R. Kumai , Y. Tokura

CeFe$_2$ is a geometrically frustrated ferromagnet that lies close to an instability at which a subtle change in the lattice symmetry couples to a transition to antiferromagnetism. We use x-ray diffraction, diamond-anvil-cell techniques,…

强关联电子 · 物理学 2012-08-07 Jiyang Wang , Yejun Feng , R. Jaramillo , Jasper van Wezel , P. C. Canfield , T. F. Rosenbaum

We present muon spin rotation ($\mu$SR) and susceptibility measurements on single crystals of isoelectronically doped URu$_{2-x}$T$_x$Si$_2$ (T = Fe, Os) for doping levels up to 50\%. Zero Field (ZF) $\mu$SR measurements show long-lived…

Calculations of the electronic and magnetic properties of the non-magnetic metallic compound YFe$_2$Si$_2$ are reported. These show that at the density functional level a magnetic state involving ordering along the $c$-axis. The electronic…

强关联电子 · 物理学 2016-06-30 D. J. Singh

We investigated the anisotropic magnetic properties of CePd$_2$As$_2$ by magnetic, thermal and electrical transport studies. X-ray diffraction confirmed the tetragonal ThCr$_2$Si$_2$-type structure and the high-quality of the single…

强关联电子 · 物理学 2017-08-09 M. O. Ajeesh , T. Shang , W. B. Jiang , W. Xie , R. D. dos Reis , M. Smidman , C. Geibel , H. Q. Yuan , M. Nicklas