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Related papers: Electronic and Magnetic Properties of Febr2

200 papers

We here study electronic structure and magnetic properties of bcc Co$_{x}$Fe$_{1-x}$, Cr$_{x}$Fe$_{1-x}$ and Mn$_{x}$Fe$_{1-x}$ in their ferromagnetic phases using Augmented Space Recursion technique coupled with tight-binding linearized…

Materials Science · Physics 2019-08-17 Subhradip Ghosh , Chhanda Basu Chaudhuri , Biplab Sanyal , Abhijit Mookerjee

We show on the basis of electronic structure calculations that the uranium 5$f$ magnetic moment in URu$_2$Si$_2$ exhibits a unique Ising behavior, which surprisingly, arises from itinerant electronic states. The origin of the unusual Ising…

Strongly Correlated Electrons · Physics 2015-06-19 Miroslaw Werwinski , Jan Rusz , John A. Mydosh , Peter M. Oppeneer

The role of orbital differentiation on the emergence of superconductivity in the Fe-based superconductors remains an open question to the scientific community. In this investigation, we employ a suitable microscopic spin probe technique,…

Superconductivity · Physics 2014-02-11 P. F. S. Rosa , C. Adriano , T. M. Garitezi , T. Grant , Z. Fisk , R. R. Urbano , P. G. Pagliuso

Using electron spin resonance, lattice position and dynamic properties of Mn2+ ions were studied in 0.5 and 2 % manganese doped SrTiO3 ceramics prepared by conventional mixed oxide method. The measurements showed that Mn2+ ions substitute…

Soft Condensed Matter · Physics 2009-11-13 V. V. Laguta , I. V. Kondakova , I. P. Bykov , M. D. Glinchuk , P. M. Vilarinho , A. Tkach , L. Jastrabik

The interaction between the itinerant spins in metals and localized spins in magnetic insulators thus far has only been explored in collinear spin systems, such as garnets. Here, we report the spin-Hall magnetoresistance (SMR) sensitive to…

Materials Science · Physics 2016-10-17 A. Aqeel , N. Vlietstra , A. Roy , M. Mostovoy , B. J. van Wees , T. T. M. Palstra

The recent observation of magnetization plateaus in rare-earth metallic tetraborides has drawn a lot of attention to this class of materials. In this work, we investigate the electronic structure of one such canonical system…

Strongly Correlated Electrons · Physics 2024-02-27 Ismail Sk , Joydeep Chatterjee , A. Taraphder , Nandan Pakhira

Resonant elastic X-ray scattering (REXS) at the Eu $M_5$ edge reveals an antiferromagnetic structure in layered EuCd$_2$Sb$_2$ at temperatures below $T_\textrm{N}$ = 7.4 K with a magnetic propagation vector of $(0,0,1/2)$ and spins in the…

Strongly Correlated Electrons · Physics 2018-08-22 J. -R. Soh , C. Donnerer , K. M. Hughes , E. Schierle , E. Weschke , D. Prabhakaran , A. T. Boothroyd

The magnetic and electronic properties of the layered Zintl-phase compound EuAl$_2$Ge$_2$ crystallizing in the trigonal CaAl$_2$Si$_2$-type structure are reported. Our neutron-diffraction measurements show that EuAl$_2$Ge$_2$ undergoes…

Based on crystal chemistry rationale and calculations within the density functional theory DFT, the U:B system is complemented with additional binary compounds UB3, U2B6, and UB6 possessing two-dimensional 2D and 3D boron substructures.…

Materials Science · Physics 2020-02-18 Samir F. Matar

Based on density functional calculations, we report on the orbital order and microscopic magnetic model of FeNCN, a prototype compound for orbital-only models. Despite having a similar energy scale, the spin and orbital degrees of freedom…

Strongly Correlated Electrons · Physics 2011-06-21 Alexander A. Tsirlin , Klaus Koepernik , Helge Rosner

The spin dynamics and magnetic excitations of the slightly distorted triangular s = 3/2 system alpha-CaCr2O4 are investigated by means of Raman spectroscopy and electron spin resonance (ESR) to elucidate its peculiar magnetic properties.…

We investigate the interplay of spin-orbit coupling, electronic correlations, and lattice distortions in the $5d^1$ double perovskite Ba$_2$MgReO$_6$. Combining density-functional theory (DFT) and dynamical mean-field theory (DMFT), we…

Strongly Correlated Electrons · Physics 2023-12-18 Maximilian E. Merkel , Aria Mansouri Tehrani , Claude Ederer

We have investigated the electronic and magnetic structures of Sr2FeMoO6 employing site-specific direct probes, namely x-ray absorption spectroscopy with linearly and circularly polarized photons. In contrast to some previous suggestions,…

Strongly Correlated Electrons · Physics 2009-11-07 Sugata Ray , Ashwani Kumar , D. D. Sarma , R. Cimino , S. Turchini , S. Zennaro , N. Zema , .

Magnetic excitations are important quantum phenomena in magnetic systems and have been widely studied in individual magnetic atoms and molecules as well as their assembled structures over the past few decades. Using scanning tunneling…

Electron-electron interactions are at the origin of many exotic electronic properties of materials which have emerged from recent experimental observations. The main important phenomena discovered are related with electronic magnetic…

Strongly Correlated Electrons · Physics 2015-05-19 Henri Alloul

In multiferroic TbMn$_2$O$_5$, the behavior of the terbium ions forms a crucial part of the magneto-electric coupling. The result is a magnetically induced reversal of the electric polarization at 2 T. In this article we present the first…

Strongly Correlated Electrons · Physics 2011-06-27 R. D. Johnson , C. Mazzoli , S. R. Bland , C-H. Du , P. D. Hatton

We have studied the local electronic structure of LaMn0.5Co0.5O3 using soft-x-ray absorption spectroscopy at the Co-L_3,2 and Mn-L_3,2 edges. We found a high-spin Co^{2+}--Mn^{4+} valence state for samples with the optimal Curie…

Strongly Correlated Electrons · Physics 2008-03-18 T. Burnus , Z. Hu , H. H. Hsieh , V. L. J. Joly , P. A. Joy , M. W. Haverkort , Hua Wu , A. Tanaka , H. -J. Lin , C. T. Chen , L. H. Tjeng

The magnetic and electronic properties of the magnetically doped topological insulator Bi$_{\rm 2-x}$Mn$_{\rm x}$Te$_3$ were studied using electron spin resonance (ESR) and measurements of static magnetization and electrical transport. The…

Strongly Correlated Electrons · Physics 2016-09-28 S. Zimmermann , F. Steckel , C. Hess , H. W. Ji , Y. S. Hor , R. J. Cava , B. Büchner , V. Kataev

Unlike the ferropnictide superconductors, which crystallize in a tetragonal crystal structure, binary FeAs forms in an orthorhombic crystal structure, where the local atomic environment resembles a highly distorted variant of the FeAs4…

Other Condensed Matter · Physics 2015-03-17 J. R. Jeffries , N. P. Butch , H. Cynn , S. R. Saha , K. Kirshenbaum , S. T. Weir , Y. K. Vohra , J. Paglione

Results of magnetic field and temperature dependent neutron diffraction and magnetization measurements on oxy-arsenate Rb$_{2}$Fe$_{2}$O(AsO$_{4}$)$_{2}$ are reported. The crystal structure of this compound contains pseudo-one-dimensional…

Strongly Correlated Electrons · Physics 2015-06-18 V. O. Garlea , L. D. Sanjeewa , M. A. McGuire , P. Kumar , D. Sulejmanovic , J. He , S. -J Hwu