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We report the discovery of a new diluted magnetic semiconductor, Li(Zn,Mn)P, in which charge and spin are introduced independently via lithium off-stoichiometry and the isovalent substitution of Mn2+ for Zn2+, respectively. Isostructural to…

Experimental synthesis of theoretically predicted materials with controlled elemental coordination environments can lead to realization of useful properties, such as facile ion transport or ferroelectric switching. Among such materials are…

In the present work, we systematically studied the effect of Al doping on the phase formation of iron nitride (Fe-N) thin films. Fe-N thin films with different concentration of Al (Al=0, 2, 3, 6, and 12 at.%) were deposited using dc…

Materials Science · Physics 2015-05-21 Akhil Tayal , Mukul Gupta , Nidhi Pandey , Ajay Gupta , M. Horisberger , Jochen Stahn

The structural and magnetic properties of transition metal-doped Mn$_3$SnC are studied with an aim to understand the effect of transition metal atom on magnetostructural properties of the antiperovskite compound. The doped…

Materials Science · Physics 2020-04-03 V. N. Gaonkar , E. T. Dias , A. K. Nigam , K. R. Priolkar

We report on the superconducting performance of the ex-situ SiC doped MgB2 monofilamentary tapes. Polycrystalline powders of MgB2 doped with 5 and 10 wt% SiC were synthesized by conventional solid-state reaction route and characterized for…

Superconductivity · Physics 2014-05-19 Gennaro Romano , Arpita Vajpayee , Maurizio Vignolo , V. P. S. Awana , Carlo Frederghini

The chemical ordering, electrical, optical, and magnetic properties of $Na_{0.5}Bi_{0.5}TiO_{3}$ (NBT) and 25$\%$ dysprosium doped NBT (DyNBT) were investigated in the framework of first-principles calculations using the full potential…

Experimental studies of Zn1-xCoxO as thin films or nanocrystals have found ferromagnetism and Curie temperatures above room temperature and that p- or n-type doping of Zn1-xCoxO can change its magnetic state. Bulk Zn1-xCoxO with a low…

Materials Science · Physics 2013-05-29 Charles H. Patterson

We report a systematic study of superconductivity on Fe1-xZnxSe single crystals synthesized over a broad Zn doping range (x = 0-0.023). High-quality single crystals across all compositions range exhibit superconducting transitions, while…

Resistivity measurements have been made on Mn$_{1-x}$Fe$_x$Si single crystals between 2 and 300K for $x$ = 0, 0.05, 0.08, 0.12 and 0.15. Fe doping is found to depress the magnetic ordering temperature from 30K for $x$ = 0 to below 2K for…

Strongly Correlated Electrons · Physics 2009-08-04 C. Meingast , Q. Zhang , Th. Wolf , F. Hardy , K. Grube , W. Knafo , P. Adelmann , P. Schweiss , H. v. Lohneysen

We investigated the influence of doping antiferromagnetic MnN in polycrystalline MnN/CoFe exchange bias systems, showing high exchange bias of up to 1800 Oe at room temperature. The thermal stability of those systems is limited by nitrogen…

Materials Science · Physics 2021-12-08 Mareike Dunz , Björn Büker , Markus Meinert

We investigate the compositional dependence of the total energy of the mixed crystals (Ga,Mn)As co-doped with As, Sn, and Zn. Using the ab initio LMTO-CPA method we find a correlation between the incorporation of acceptors (Mn, Zn) and…

Materials Science · Physics 2007-05-23 J. Masek , I. Turek , V. Drchal , J. Kudrnovsky , F. Maca

SmFeAsO and the isostructural superconducting SmFeAs(O0.93F0.07) samples were prepared. Characterization by means of Rietveld refinement of X-ray powder diffraction data, scanning electron microscope observation, transmission electron…

We have studied the effect of Al doping on the structural, magnetic and electrical properties of La$_{1-x}$Ba$_x$Mn$_{1-x}$Al$_x$O$_3$ ($0\leq x \leq 0.25$) manganite, annealed in two 750$^oC$ and 1350$^oC$ temperatures. The XRD analysis…

Materials Science · Physics 2021-05-24 J. Ardashti Saleh , I. Abdolhosseini Sarsari , P. Kameli , H. Salamati

We investigate the electronic and magnetic properties of Mn-doped CdTe nanocrystals (NCs) with 2 nm in diameter which can be experimentally synthesized with Mn atoms inside. Using the density-functional theory, we consider two doping cases:…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 C. Echeverría-Arrondo , J. Pérez-Conde , A. Ayuela

We generated arrays of silver wires with a height of one atom and an average width of 11 atoms on the Si(557) surface via self assembly with local $\sqrt{3}\times\sqrt{3}$ order, and investigated the 1D plasmon formation in them using a…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 U. Krieg , Y. Zhang , C. Tegenkamp , H. Pfnür

Pulsed neutron diffraction investigations have been performed in the ferroelectric PZT system, Pb(Zr1-xTix)O3, doped with 1%wt. of Nb2O5, as a function of both temperature and composition. The study has been made in a wide range of…

Materials Science · Physics 2009-10-31 B. Noheda , J. A. Gonzalo , M. Hagen

Cd1-xZnxTe crystals with x in the range of 0.1-0.2 were grown by the high-pressure vertical Bridgman method from pre-synthesized CZT. Resistive graphite heaters were used to control the temperature profiles within the furnaces, and an argon…

Lanthanide-doped Y$_{2}$SiO$_{5}$ microcrystals were prepared using the solution combustion, solid state and sol-gel synthesis techniques. Of these, the sol-gel method yields the most reliable and high-quality X2 phase Y$_{2}$SiO$_{5}$…

Materials Science · Physics 2024-09-26 Jamin L. B. Martin , Lily F. Williams , Michael F. Reid , Jon-Paul R. Wells

In this letter, we have investigated the third-order optical nonlinearities of high-quality Ni doped ZnO nanorods crystallized in wurtzite lattice, prepared by the wet chemical method. In our experiments, we found that the two photon…

The magnetization of Ni_{1-x}Mo_{x} single crystals with x=4,6,8 and 10 % by weight have been measured at 4.2K using a vibrating sample magnetometer and a Superconducting Quantum Interference Device (SQUID). The magnetization of the alloy…

Materials Science · Physics 2019-08-17 S. Ghosh , N. Das , A. Mookerjee
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