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Related papers: Surface-induced magnetism in C-doped SnO$_{2}$

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We prove a spontaneous magnetization of the oxygen-terminated ZnO (0001) surface by utilizing a multi-code, SIESTA and KKR, first-principles approach, involving both LSDA+U and selfinteraction corrections (SIC) to treat electron correlation…

Ab initio studies have theoretically predicted room temperature ferromagnetism in crystalline SnO2, ZrO2 and TiO2 doped with non magnetic element from the 1A column as K and Na. Our purpose is to address experimentally the possibility of…

Materials Science · Physics 2011-01-25 S. K. Srivastava , P. Lejay , B. Barbara , S. Pailhès , V. Madigou , G. Bouzerar

We examine the adsorption of a single Ni atom on a monolayer of MgO on a Ag substrate using DFT and DFT+U computational approaches. We find that the electronic and magnetic properties vary considerably across the three binding sites of the…

Materials Science · Physics 2015-06-18 Oliver R. Albertini , Amy Y. Liu , Barbara A. Jones

In this work, we investigate the microscopic origin of magnetism in $\mathrm{SrCoO_3}$ by incorporating electronic correlations within the dynamical mean-field theory (DMFT) framework. We note a remarkable agreement of the calculated…

Strongly Correlated Electrons · Physics 2025-12-16 Jyotsana Sharma , Shivani Bhardwaj , Sudhir K Pandey

Spontaneous magnetization and magnetic susceptibility originated from the pseudovector-type four-point interaction between quarks are calculated in quark matter with zero temperature and finite quark chemical potential by using the…

High Energy Physics - Phenomenology · Physics 2018-05-23 M. Morimoto , Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

Using first-principles density functional theory method, we have investigated the distribution and magnetism of doped Mn atoms in the vicinity of the 3 (112) grain boundary in Ge. We find that at low concentration, the substitutional sites…

Materials Science · Physics 2010-05-24 W. Wang , S. L. Zhang , Z. X. Tian , W. Xiao

Several experimental studies have referred to the grain boundary (GB) defect as the origin of the ferromagnetism in ZnO. However, the mechanism of this hypothesis has never been confirmed. Present study investigates the atomic structure and…

Materials Science · Physics 2016-01-20 S. Assa Aravindh , Udo Schwingenschloegl , Iman S. Roqan

For the purpose of elucidating the gas sensing mechanism of SnO$_2$ for NO and NO$_2$ gases, we calculate the phase diagram of SnO$_2$(110) surface in contact with an O$_2$ and NO gas environment by means of {\it ab initio} thermodynamic…

The possibility that the apparent room temperature ferromagnetism, often measured in Co-doped ZnO, is due to uncompensated spins at the surface of wurtzite CoO nanoclusters is investigated by means of a combination of density functional…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Ruairi Hanafin , Thomas Archer , Stefano Sanvito

The unusual band structure of carbon nanotubes (CNs) results in their remarkable magnetic properties. The application of magnetic field parallel to the tube axis can change the conducting properties of the CN from metallic to semiconducting…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Magdalena Marganska , Marek Szopa , Elzbieta Zipper

We report calculations indicating the presence of a surface magnetic moment for Rh(001), motivated by the detection of a finite moment by magnetic linear dichroism experiments. We show that, while the density functional with the local…

Materials Science · Physics 2009-11-11 N. Stojic , N. Binggeli , M. Altarelli

We realize Mn $\delta$-doping into Si and Si/Ge interfaces using Mn atomic chains on Si(001). Highly sensitive X-ray absorption fine structure techniques reveal that encapsulation at room temperature prevents the formation of silicides /…

We report room temperature ferromagnetism in boron-doped ZnO both experimentally and theoretically. The single phase Zn1-xBxO films deposited under high oxygen pressure by pulsed-laser deposition show ferromagnetic behavior at room…

Materials Science · Physics 2015-05-18 X. G. Xu , H. L. Yang , Y. Wu , D. L. Zhang , S. Z. Wu , J. Miao , Y. Jiang

Magneto-electric effect, that is an appearance of magnetisation induced by electric current is allowed by symmetry in metals with crystal structure without space inversion. The microscopic origin of this effect is spin-orbit coupling of…

Strongly Correlated Electrons · Physics 2024-01-22 V. P. Mineev

Magnetic properties of the Sr-doped BaCoO$_3$ are explained on the basis of ab initio calculations and the analysis of experimental literature. Formation of magnetic clusters bigger than in the parent compound and increase in the blocking…

Strongly Correlated Electrons · Physics 2009-11-11 V. Pardo , J. Rivas , D. Baldomir

A magneto-optically active thin film of Rb$_{j}$Co$_{k}$[Fe(CN)$_{6}$]$_{l}$ $\cdot$$n$H$_{2}$O has been prepared using a sequential assembly method. Upon irradiation with light and at 5 K, the net magnetization of the film increased when…

Other Condensed Matter · Physics 2016-08-16 J. -H. Park , E. Čižmár , M. W. Meisel , Y. D. Huh , F. Frye , S. Lane , D. R. Talham

Thin films of orthorhombic TbMnO3, as well as other orthorhombic manganites, epitaxially grown on cubic SrTiO3 substrates display an induced magnetic moment that is absent in the bulk (antiferromagnetic) counterpart. Here we show that there…

We investigate the magnetization and the magnetostriction of the dipole-octupole quantum spin ice candidate Ce2Hf2O7 down to 50 mK. We find that the magnetization curves observed with the magnetic field applied along all the principal axes…

The low temperature magnetization process of antiferromagnetic spin-S chains doped with mobile spin-(S-1/2) carriers is studied in an exactly solvable model. For sufficiently high magnetic fields the system is in a metallic phase with a…

Strongly Correlated Electrons · Physics 2009-10-31 Holger Frahm , Constantin Sobiella

Room temperature ferromagnetism was observed in In$_2$O$_3 thin films doped with 5 at.% vanadium, prepared by pulsed laser deposition at substrate temperatures ranging from 300 to 600 $\,^{\circ}{\rm C}$. X-ray absorption fine structure…

Materials Science · Physics 2015-06-17 Qi Feng , Harry J Blythe , A Mark Fox , Xiu-Fang Qin , Xiao-Hong Xu , Steve M Heald , Gillian A Gehring
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