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Related papers: Electronic structure and Magnetism in BaMn$_2$As$_…

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Density functional calculations are used to study magnetic and electronic properties of the spinel ferrites, ZnFe$_2$O$_4$ and MnFe$_2$O$_4$. Correct magnetic orderings are obtained. ZnFe$_2$O$_4$ is predicted to be a small gap insulator in…

Condensed Matter · Physics 2009-11-07 D. J. Singh , M. Gupta , R. Gupta

We have studied the crystal and magnetic structures of the magnetoelectric materials RMn2O5 (R = Tb, Ho, Dy) using neutron diffraction as a function of temperature. All three materials display incommensurate antiferromagnetic ordering below…

Strongly Correlated Electrons · Physics 2009-11-11 G. R. Blake , L. C. Chapon , P. G. Radaelli , S. Park , N. Hur , S-W. Cheong , J. Rodriguez-Carvajal

We report a new member of topological insulator (TI) family i.e., Mn$_2$Sb$_2$Te$_5$, which belongs to MnSb$_2$Te$_4$ family and is a sister compound of Mn$_2$Bi$_2$Te$_5$. An antiferromagnetic layer of (MnTe)$_2$ has been inserted between…

Materials Science · Physics 2023-10-17 Ankush Saxena , V. P. S. Awana

We have used single crystal X-ray diffraction methods to establish the crystal structures of a compound in the Pd-Mn-Si system and in the Pd-Mn-Ge system. The title compounds have structures related to the Fe$_2$P structure type and are…

Materials Science · Physics 2007-06-16 Srinivasa Thimmaiah , Claudia Felser , Ram Seshadri

We have investigated electronic structures of a room temperature diluted magnetic semiconductor : Co-doped anatase $\rm TiO_{2}$. We have obtained the half-metallic ground state in the local-spin-density approximation(LSDA) but the…

Materials Science · Physics 2009-11-07 Min Sik Park , S. K. Kwon , B. I. Min

The results of the electronic structure calculations performed on SmN by using the LDA+U method with and without including the spin-orbit coupling are presented. Within the LDA+U approach, a N(2$p$) band polarization of $\simeq 0.3\ \mu_B$…

Materials Science · Physics 2015-06-23 C. Morari , F. Beiuşeanu , I. Di Marco , L. Peters , E. Burzo , S Mican , L. Chioncel

A microscopic magnetic model for the spin-1/2 Heisenberg chain compound CuSe2O5 is developed based on the results of a joint experimental and theoretical study. Magnetic susceptibility and specific heat data give evidence for quasi-1D…

Strongly Correlated Electrons · Physics 2009-11-20 O. Janson , W. Schnelle , M. Schmidt , Yu. Prots , S. -L. Drechsler , S. K. Filatov , H. Rosner

Electronic structure and chemical bonding in TiX2 (X=S, Se, Te), TMxTiSe2 (TM=Cr, Mn, Cu) and CrxTi1-xSe2 were studied by x-ray resonance photoemission and absorption spectroscopy. These methods are detected to be strong sensitive to…

Strongly Correlated Electrons · Physics 2015-05-28 A. S. Shkvarin , Yu. M. Yarmoshenko , M. V. Yablonskikh , N. A. Skorikov , A. I. Merentsov , A. N. Titov

Magnetic topological materials are a class of compounds which can host massless electrons controlled by the magnetic order. One such compound is EuZn$_2$Sb$_2$, which has recently garnered interest due to its strong interplay between the Eu…

Strongly Correlated Electrons · Physics 2026-02-17 Yu Wei Soh , Hsiang Lee , Eugen Weschke , Shinichi Nishihaya , Mikhael T. Sayat , Masaki Uchida , Jian-Rui Soh

Growth of BaMn2As2 crystals using both MnAs and Sn fluxes is reported. Room temperature crystallography, anisotropic isothermal magnetization M versus field H and magnetic susceptibility chi versus temperature T, electrical resistivity in…

Superconductivity · Physics 2010-11-12 Yogesh Singh , A. Ellern , D. C. Johnston

A detailed theoretical study on the electronic structure and magnetic properties of half-metallic ferromagnet CrO$_2$ was carried out by means of relativistic full-potential linear muffin-tin orbital method within the generalized gradient…

Materials Science · Physics 2009-11-11 V. Kanchana , G. Vaitheeswaran , M. Alouani

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

The electronic structure of Me[N(CN)$_2$]$_2$ (Me=Mn, Fe, Co, Ni, Cu) molecular magnets has been investigated using x-ray emission spectroscopy (XES) and x-ray photoelectron spectroscopy (XPS) as well as theoretical density-functional-based…

Tl2Mn2O7 exhibits important differences with other colossal magnetoresistance (CMR) compounds, like the Mn-perovskites, in its crystal structure and electronic properties, indicating the possibility of different mechanisms for CMR being…

Strongly Correlated Electrons · Physics 2007-05-23 C. I. Ventura , M. A. Gusmao , .

Here we present a detailed investigation of the Co and Ir local electronic structures in La1.5A0.5CoIrO6 (A = Ba, Ca) compounds in order to unravel the orbital hybridization mechanism in these CoIr-based double perovskites. Our results of…

New fluoropnictides BaMnPnF with Pn = As, Sb, Bi, are synthesized by stoichiometric reaction of elements with BaF\_2. The compounds crystallize in the tetragonal P4/nmm (No. 129, Z = 2) space group, with the ZrCuSiAs-type structure, as…

Strongly Correlated Electrons · Physics 2013-07-09 Bayrammurad Saparov , David J. Singh , V. Ovidiu Garlea , Athena S. Sefat

The electronic structures of the heavy-fermion superconductor CeRh$_2$As$_2$ with the local inversion symmetry breaking and the reference material LaRh$_2$As$_2$ have been investigated by using experimental optical conductivity…

Strongly Correlated Electrons · Physics 2024-02-28 Shin-ichi Kimura , Jörg Sichelschmidt , Seunghyun Khim

Results of the first principles study on the electronic structure and magnetism of the superconducting weak ferromagnet Y$_4$Co$_3$, are presented. Using the full potential Korringa-Kohn-Rostoker (FP-KKR) method, densities of states,…

Superconductivity · Physics 2011-03-15 Bartlomiej Wiendlocha , Janusz Tobola , Stanislaw Kaprzyk , Andrzej Kolodziejczyk

Electronic structure and magnetic properties for iron-selenide KFe$_2$Se$_2$ are studied by first-principles calculations. The ground state is stripe-like antiferromagnetic with calculated 2.26 $\mu_B$ magnetic moment on Fe atoms; and the…

Superconductivity · Physics 2015-05-20 Chao Cao , Jianhui Dai
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