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Materials exhibiting electronic inhomogeneities at the nanometer scale have enormous potential for applications. Magnetic polarons are one such type of inhomogeneity which link the electronic, magnetic and lattice degrees of freedom in…

Complex magneto structural behaviour of rare rich intermetallic Tb$_3$Co is reported in this study. Below the 84K (T$_N$), it undergoes a first order magnetic transition 72K confirmed from specific heat and magnetization measurements.…

Materials Science · Physics 2019-08-23 Srikanta Goswami , P. D. Babu , R. Rawat

Owing to their exceptional chemical and electronic tunability, metal-organic frameworks can be designed to develop magnetic ground states making a range of applications feasible, from magnetic gas separation to the implementation of…

A detailed investigation of Ba$_2$MnGe$_2$O$_7$ was performed in its low-temperature magnetoelectric state combining neutron diffraction with magnetization measurements on single crystals. In the paramagnetic state at 10 K, polarized…

Strongly Correlated Electrons · Physics 2023-03-07 A. Sazonov , H. Thoma , R. Dutta , M. Meven , A. Gukasov , R. Fittipaldi , V. Granata , T. Masuda , B. Náfrádi , V. Hutanu

We report muon spin rotation ($\mu$SR) and neutron diffraction on the rare-earth based magnets (Mo$_{2/3}$RE$_{1/3}$)$_2$AlC, also predicted as parent materials for 2D derivatives, where RE = Nd, Gd (only ($\mu$SR), Tb, Dy, Ho and Er. By…

Element-specific x-ray resonant magnetic scattering investigations were performed to determine the magnetic structure of Eu in EuRh2As2. In the temperature range from 46 K down to 6 K, an incommensurate antiferromagnetic (ICM)structure with…

Strongly Correlated Electrons · Physics 2010-11-17 S. Nandi , A. Kreyssig , Y. Lee , Yogesh Singh , J. W. Kim , D. C. Johnston , B. N. Harmon , A. I. Goldman

Magnetism in 2D atomic sheets has attracted considerable interest as its existence could allow the development of electronic and spintronic devices. The existence of magnetism is not sufficient for devices, however, as states must be…

Materials Science · Physics 2012-12-04 Eduardo Machado-Charry , Paul Boulanger , Luigi Genovese , Normand Mousseau , Pascal Pochet

Polarized and unpolarized neutron diffraction has been used to search for magnetic order in YBa$_2$Cu$_3$O$_{6+x}$ superconductors. Most of the measurements were made on a high quality crystal of YBa$_2$Cu$_3$O$_{6.6}$. It is shown that…

Superconductivity · Physics 2009-11-07 H. A. Mook , Pengcheng Dai , S. M. Hayden , A. Hiess , J. W. Lynn , S. -H. Lee , F. Dogan

Ferrites, magnetic materials primarily composed of iron oxides, exhibit diverse magnetic behaviors, including diamagnetism, paramagnetism, ferromagnetism, antiferromagnetism, ferrimagnetism, and superparamagnetism. This paper explores the…

Materials Science · Physics 2024-06-18 Maryam M. Ahmed , Nagwa Abu-Elsaad

Spin and orbital magnetic moments of cationic iron, cobalt, and nickel clusters have been determined from x-ray magnetic circular dichroism spectroscopy. In the size regime of $n = 10 - 15$ atoms, these clusters show strong ferromagnetism…

Atomic and Molecular Clusters · Physics 2014-12-01 A. Langenberg , K. Hirsch , A. Lawicki , V. Zamudio-Bayer , M. Niemeyer , P. Chmiela , B. Langbehn , A. Terasaki , B. v. Issendorff , J. T. Lau

We have identified TbOF as a unique frustrated and mixed-anion lattice, hosting unconventional magnetism. By means of magnetization, specific heat and neutron diffraction measurements down to 90 mK, as well as DFT calculations, we present a…

Atomically thin two dimensional magnets have given rise to emergent phenomena due to magnetic exchange and spin-orbit coupling showing a great promise for realizing ultrathin device structures. In this paper, we critically examine the…

Mesoscale and Nanoscale Physics · Physics 2021-12-22 Duo Wang , Xin Chen , Biplab Sanyal

We investigate magnetism in amorphous carbon as suggested by the recently reported ferromagnetism in a new form of amorphous carbon. We use spin constrained first-principles simulations to obtain amorphous carbon structures with the desired…

Materials Science · Physics 2018-07-18 Yuki Sakai , James R. Chelikowsky , Marvin L. Cohen

We explain a profound complexity of magnetic interactions of some technologically relevant gadolinium intermetallics using an ab-initio electronic structure theory which includes disordered local moments and strong $f$-electron…

Conventional magnetism occurs in systems which contain transition metals or rare earth ions with partially filled $d$ or $f$ shells. It is theoretically predicted that compounds of groups IA and IIA with IV and V, in some structural phases,…

Materials Science · Physics 2017-03-28 Seyed Mojtaba Rezaei Sani , Omid Khakpour

Noncollinear magnetic moments in antiferromagnets (AFM) lead to a complex behavior of electrical transport, even to a decreasing resistivity due to an increasing temperature. Proper treatment of such phenomena is required for understanding…

Materials Science · Physics 2020-06-19 David Wagenknecht , Karel Výborný , Karel Carva , Ilja Turek

Several doped 6H hexagonal ruthenates, having the general formula Ba3MRu2O9, have been studied over a significant period of time in order to understand the unusual magnetism of ruthenium metal. However, among them, the M=Fe compound appears…

In low-dimensional magnets, thermal agitation and spatial disorders generate strong spin fluctuations that suppress the long-range magnetic ordering. We develop an analytical equation for the equilibrium magnetization of two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-12-08 Essa M. Ibrahim , Ping Tang , Shufeng Zhang

The ferrimagnetic insulator Mn3Si2Te6, which features a Curie temperature Tc at 78 K and a delicate yet consequential magnetic frustration, exhibits colossal magnetoresistance (CMR) when the magnetic field is applied along the magnetic hard…

Strongly Correlated Electrons · Physics 2022-11-02 Feng Ye , Masaaki Matsuda , Zachary Morgan , Todd Sherline , Yifei Ni , Hengdi Zhao , G. Cao

A multitude of observed boron-based materials have outstanding superconducting, mechanical, and refractory properties. Yet, the structure, the composition, and the very existence of some reported metal boride (M-B) compounds have been a…

Materials Science · Physics 2014-10-03 A. G. Van Der Geest , A. N. Kolmogorov
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