English
Related papers

Related papers: Magnetism in small bimetallic Mn-Co clusters

200 papers

Theoretical studies on M$_{13}$ (M = Fe, Co, Ni) and M$_{13}$Pt$_n$ (for $n$ = 3, 4, 5, 20) clusters including the spin-orbit coupling are done using density functional theory. The magnetic anisotropy energy (MAE) along with the spin and…

We have used the Stern-Gerlach deflection technique to study magnetism in chromium clusters of 20-133 atoms. Between 60 K and 100 K, we observe that these clusters have large magnetic moments and respond superparamagnetically to applied…

Atomic and Molecular Clusters · Physics 2009-11-13 F. W. Payne , Wei Jiang , L. A. Bloomfield

Compositional effects in NaK alloy clusters have been studied using bond order length strength notation and density functional theory calculations. The results reveal binding energy shifts of the NaK alloy clusters under different elemental…

Materials Science · Physics 2019-08-08 Jing Zhao , Maolin Bo

We investigate the structural conditions for metamagnetism in MnP and related materials using Density Functional Theory. A magnetic stability plot is constructed taking into account the two shortest Mn-Mn distances. We find that a…

Materials Science · Physics 2010-06-23 Z. Gercsi , K. G. Sandeman

We study the composition dependent evolution of geometric and magnetic structures of MnO clusters within density functional theory. A systematic and extensive search through the potential energy surface is performed to identify the correct…

Materials Science · Physics 2018-10-16 Shreemoyee Ganguly , Mukul Kabir , Carmine Autieri , Biplab Sanyal

The spontaneous magnetization as a function of temperature is investigated for a number of disordered Ni-Fe-Mo and Ni-Fe-W alloys using superconducting quantum interference device magnetometry, with a focus on the low-T behavior as well as…

Materials Science · Physics 2015-05-20 Mitali Banerjee , Avinash Singh , A. K. Majumdar , A. K. Nigam

Ni-Mn-Ga is interesting as a prototype of a magnetic shape-memory alloy showing large magnetic field induced strains. We present here results for the magnetic ordering of Mn-rich Ni-Mn-Ga alloys based on both experiments and theory.…

Materials Science · Physics 2009-11-07 J. Enkovaara , O. Heczko , A. Ayuela , R. M. Nieminen

We investigate the effect of Mn substitution in Fe$_2$Ti$_{1-x}$Mn$_x$Sn on electronic structure and magnetic and electrical transport properties. The spin-polarized density of states calculations using density-functional theory (DFT)…

Materials Science · Physics 2025-08-20 Kulbhushan Mishra , Shishir Kumar Pandey , S. Chaudhuri , Rajeev Rawat , P. A. Bhobe

We systematically investigate the structural, electronic and magnetic properties of Mn$_n$ clusters ($n =$ 2$-$20) within the {\it ab-initio} pseudopotential plane wave method using generalized gradient approximation for the…

Atomic and Molecular Clusters · Physics 2008-06-12 Mukul Kabir , Abhijit Mookerjee , D. G. Kanhere

We study the magnetocaloric effect and critical behavior of Co$_2$Cr$_{1-x}$Mn$_x$Al ($x=$ 0.25, 0.5, 0.75) Heusler alloys across the ferromagnetic (FM) transition (T$_{\rm C}$). The Rietveld refinement of x-ray diffraction patterns exhibit…

Materials Science · Physics 2020-01-08 Priyanka Nehla , V. K. Anand , Bastian Klemke , Bella Lake , R. S. Dhaka

Density functional theory (DFT) calculations are used to investigate the electronic and magnetic structures of a two-dimensional (2D) monolayer Li$_{2}$N. It is shown that bulk Li$_{3}$N is a non-magnetic semiconductor. The…

Materials Science · Physics 2017-12-06 Gul Rahman , Altaf Ur Rahman , Saima Kanwal , P. Kratzer

The magnetism in 12.5% and 25% Mn delta-doped cubic GaN has been investigated using the density-functional theory calculations. The results show that the single-layer delta-doping and half-delta-doping structures show robust ground state…

Materials Science · Physics 2009-01-20 Xingtao Jia , Wei Yang , Minghui Qin , Xinglai Zhang , Xindong Cui , Mingai Sun

Density functional theory (DFT) is used to study vibrations, electrical dipole moments, and polarizabilities of NaF clusters. Because of prior experimental and theoretical studies, this is a good model system for tracking the evolution of…

Other Condensed Matter · Physics 2007-05-23 Christian Schmidt , Philip B. Allen , Tunna Baruah , Mark Pederson

Mn doping of group-IV semiconductors (Si/Ge) is achieved by embedding a thin Mn-film as a {\delta}-doped layer in group-IV matrix. The Mn-layer consists of a dense layer of monoatomic Mn-wires, which are oriented perpendicular to the…

Materials Science · Physics 2017-07-04 K. R. Simov , P. -A. Glans , C. A. Jenkins , M. Liberati , P. Reinke1

Magnetic Compton scattering, x-ray magnetic circular dichroism spectroscopy and bulk magnetometry measurements are performed on a set of medium (NiFeCo and NiFeCoCr) and high (NiFeCoCrPd and NiFeCoCrMn) entropy Cantor-Wu alloys. The bulk…

We study the magnetic properties of small Mn ring shaped clusters on a Pt(111) surface in the framework of density functional theory. We find that the Mn atoms possess large magnetic moments, of the order of 4uB/atom, and have dominating…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 M. S. Ribeiro , G. B. Corrêa , A. Bergman , L. Nordström , O. Eriksson , A. B. Klautau

The nature of low-impurity ferromagnetism remains a challenging problem in the solid-state community. Despite initial experiments dating back to the mid-20th century, a comprehensive theoretical explanation and reliable ab initio…

The structure and magnetic properties of Co clusters, comprising from 26 to 2700 atoms, self-organized or not on the graphene/Ir(111) moir\'e, were studied in situ with the help of scanning tunneling microscopy and X-ray magnetic circular…

First principles density functional theory DFT+U calculations and experimental neutron diffraction structure analyses were used to determine the low-temperature crystallographic and magnetic structure of bixbyite Mn2O3. The energies of…

Materials Science · Physics 2013-05-20 Eric Cockayne , Igor Levin , Hui Wu , Anna Llobet

Although the relationship between magnetostriction and magnetic damping is often described phenomenologically, their intrinsic connection remains unclear. In this study, we demonstrate that the magnitude of magnetic damping depends on the…

Materials Science · Physics 2025-12-01 Ivan Kurniawan , Keita Ito , Takeshi Seki , Keisuke Masuda , Yoshio Miura