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Related papers: Uncovering Electronic Exchange Behavior: Exploring…

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We study model one-dimensional chemical systems (representative of their three-dimensional counterparts) using the strictly-correlated electrons (SCE) functional, which, by construction, becomes asymptotically exact in the limit of infinite…

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

Understanding of the energy exchange between electrons and phonons in metals is important for micro- and nano-manufacturing and system design. The electron-phonon (e-ph) coupling constant is to describe such exchange strength, yet its…

Mesoscale and Nanoscale Physics · Physics 2021-03-17 Wuli Miao , Moran Wang

We introduce Density Functional Theory for inhomogeneous Bose-Fermi mixtures, derive the associated Kohn-Sham equations, and determine the exchange-correlation energy in local density approximation. We solve numerically the Kohn-Sham system…

Condensed Matter · Physics 2009-11-07 Alexander P. Albus , Fabrizio Illuminati , Martin Wilkens

We present a density functional study of Fe doped into the tetrahedral and octahedral cation sites of the wide band gap spinel ZnGa$_2$O$_4$. We calculate the electronic structure for different substitutions and discuss the magnetic and…

Materials Science · Physics 2009-11-11 Leonardo Pisani , Tulika Maitra , Roser Valenti

We report density functional studies of the Fe$_{1-x}$Cu$_x$Se alloy done using supercell and coherent potential approximation methods. Magnetic behavior was investigated using the disordered local moment approach. We find that Cu occurs in…

Superconductivity · Physics 2013-08-08 S. Chadov , D. Schärf , G. H. Fecher , C. Felser , L. Zhang , D. J. Singh

Studies connected with the investigations of non-Fermi liquid (NFL) systems continue to attract interest in condensed matter physics community. Understanding the anomalous physical properties exhibited by such systems and its related…

Strongly Correlated Electrons · Physics 2020-12-30 Karan Singh , Antik Sihi , Sudhir K. Pandey , K. Mukherjee

The study of complex oxides and oxide heterostructures have dominated the field of experimental and theoretical condensed matter research for the better part of the last few decades. Powerful experimental techniques like molecular beam…

Strongly Correlated Electrons · Physics 2021-03-09 Hrishit Banerjee

This Letter presents an investigation on the effects of mutual coupling in a metamaterial comprising two sets of electric-LC (ELC) resonators with different resonance frequencies. Through simulation and experiment, it is found that the two…

By means of first principles calculations we investigate the nature of exchange coupling in ferromagnetic bcc Fe on a microscopic level. Analyzing the basic electronic structure reveals a drastic difference between the $3d$ orbitals of…

The electronic structure and magnetic properties of LiFeAs and FeSe have been studied using hybrid exchange density functional theory. The total energies for a unit cell in LiFeAs and FeSe with different spin states including non-magnetic…

Superconductivity · Physics 2015-03-20 Wei Wu

The revealing properties of transition metal (T)-doped graphene systems are investigated with the use of the first-principles method. The detailed calculations cover the bond length, position and height of adatoms, binding energy,…

Materials Science · Physics 2019-05-06 Ngoc Thanh Thuy Tran , Duy Khanh Nguyen , Shih-Yang Lin , Godfrey Gumbs , Ming Fa-Lin

Magnetic MXenes are turning out to be an important family of materials for exploring 2D magnetism. However, investigations into the inter-dependence of layer thickness, stacking patterns and magnetism in these materials, from a microscopic…

Materials Science · Physics 2022-09-23 Himangshu Sekhar Sarmah , Subhradip Ghosh

The effect of dephasing on electron transport through a benzene molecule is carefully examined using a phenomenological model introduced by B\"{u}ttiker. Within a tight-binding framework all the calculations are performed based on the…

Mesoscale and Nanoscale Physics · Physics 2011-04-14 Moumita Dey , Santanu K. Maiti , S. N. karmakar

We study the role of static and dynamical Coulomb correlation effects on the electronic and magnetic properties of individual Mn, Fe and Co adatoms deposited on the CuN surface. For these purposes, we construct a realistic Anderson model,…

Strongly Correlated Electrons · Physics 2015-06-15 V. V. Mazurenko , S. N. Iskakov , A. N. Rudenko , I. V. Kashin , O. M. Sotnikov , M. V. Valentyuk , A. I. Lichtenstein

We look at two well known examples of interacting systems relating to condensed matter in which we put the strong interacting parameters. At high quark chemical potentials and low temperatures we study the entropy arising from the…

High Energy Physics - Phenomenology · Physics 2011-06-09 David E. Miller , Abdel-Nasser M. Tawfik

We report on an atomic-scale X-ray Photon Correlation Spectroscopy study on Fe-rich FeAl in the B2-ordered regime revealing effective <111>-exchanges of atoms on the Al-sublattice. The diffusion mechanism responsible for these exchanges is…

Materials Science · Physics 2016-06-23 Markus Stana , Manuel Ross , Bogdan Sepiol

The search for sustainable alternatives to established materials is a sensitive topic in materials science. Due to their unique structural and physical characteristics, the composition of metal-organic frameworks (MOFs) can be tuned by the…

We present the results of an ab initio study of magnetic properties of Fe, Co and Ni surfaces. In particular, we discuss their electronic structure and magnetic exchange interactions (Jij), as obtained by means of a combination of density…

Computational Physics · Physics 2015-10-14 S. Keshavarz , Y. O. Kvashnin , I. Di Marco , A. Delin , M. I. Katsnelson , A. I. Lichtenstein , O. Eriksson

Magnetization and magnetic microstructure of top soft magnetic layer (Fe), which is exchange spring coupled to bottom hard magnetic layer ($L1_0$ FePt) is studied using high resolution Kerr microscopy. When the sample (FePt/Fe) is at…

Materials Science · Physics 2021-12-06 Zaineb Hussain , Dileep Kumar , V. Raghavendra Reddy , Ajay Gupta