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A remarkably quantitative understanding of the electrical and mechanical properties of metal wires with a thickness on the scale of a nanometer has been obtained within the free-electron model using semiclassical techniques. Convergent…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 C. A. Stafford , F. Kassubek , H. Grabert

Using empirical scheme, atomic structure of a new exotic class of silicon nanoclusters was elaborated upon the central icosahedral core (Si-IC) and pentagonal petals (Si-PP) growing from Si-IC vertexes. It was shown that Si-IC/Si-PP…

Materials Science · Physics 2007-09-17 Pavel V. Avramov , Leonid A. Chernozatonskii , Pavel B. Sorokin , Mark S. Gordon

The localization of the valence electron of $H$, $Li$ and $Na$ atoms enclosed by three different fullerene molecules is studied. The structure of the fullerene molecules is used to calculate the equilibrium position of the endohedrally atom…

Chemical Physics · Physics 2016-05-04 Eloisa Cuestas , Pablo Serra

Azurite, Cu3(CO3)2(OH)2, has been considered an ideal example of a one-dimensional (1D) diamond chain antiferromagnet. Early studies of this material imply the presence of an ordered antiferromagnetic phase below $T_N \sim 1.9$ K while…

A computation methodology based on ab initio evolutionary algorithms and the spin-polarized density functional theory was developed to predict two-dimensional (2D) magnetic materials. Its application to a model system borophene reveals an…

Magnetic carbon nano-structures have potential applications in the field of spintronics as they exhibit valuable magnetic properties. Symmetrically sized small fullerene dimers are substitutional doped with nitrogen (electron rich) and…

Chemical Physics · Physics 2020-06-05 Sandeep Kaur , Amrish Sharma , Hitesh Sharma , Shobhna Dhiman , Isha Mudahar

Silicon anodes offer high energy densities for next-generation lithium-ion batteries; however, their application is limited by severe volume expansion during cycling. Making silicon porous or nanostructured mitigates this expansion but…

To investigate cylindrical ultrathin copper nanowires, we performed atomistic simulations using the steepest descent method. The stable structures of the cylindrical ultrathin copper nanowires were multi-shell packs composed of coaxial…

Materials Science · Physics 2007-05-23 Ho Jung Hwang , Jeong Won Kang

Hybrid elastic and spin waves hold promises for energy-efficient and versatile generation and detection of magnetic signals, with potentially long coherence times. Here we report on the combined elastic and magnetic dynamics in a…

Mesoscale and Nanoscale Physics · Physics 2024-06-26 P. Carrara , M. Brioschi , R. Silvani , A. O. Adeyeye , G. Panaccione , G. Gubbiotti , G. Rossi , R. Cucini

Spherical neodymium-iron-boron magnets are perman-ent magnets that can be assembled into a variety of structures due to their high magnetic strength. A one-dimensional chain of these magnets responds to mechanical loadings in a manner…

Soft Condensed Matter · Physics 2013-12-05 Dominic Vella , Emmanuel du Pontavice , Cameron L. Hall , Alain Goriely

From new neutron powder diffraction experiments on the chiral cubic ($P2{_1}3$) magnet manganese germanide MnGe, we analyse all of the possible crystal symmetry-allowed magnetic superstructures that are determined successfully from the…

Strongly Correlated Electrons · Physics 2023-01-18 V. Pomjakushin , I. Plokhikh , J. S. White , Y. Fujishiro , N. Kanazawa , Y. Tokura , E. Pomjakushina

Half-metals, featuring ideal 100\% spin polarization, are widely regarded as key materials for spintronic and quantum technologies; however, the half-metallic state is intrinsically fragile, as it relies on a delicate balance of exchange…

Materials Science · Physics 2026-01-13 San-Dong Guo , Pan Zhou

We report bulk superconductivity (SC) in Eu$_{0.2}$Sr$_{0.8}$(Fe$_{0.86}$Co$_{0.14}$)$_{2}$As$_{2}$ single crystals by means of electrical resistivity, magnetic susceptibility, and specific heat measurements with $T$$_{\mathrm{c}}$ $\simeq$…

Superconductivity · Physics 2012-01-05 R. Sarkar , R. Nath , P. Khuntia , H. S. Jeevan , P. Gegenwart , M. Baenitz

We performed a systematic search for low-energy structures of binary iron silicide over a wide range of compositions using the crystal structure prediction method based on adaptive genetic algorithm. 36 structures with formation energies…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Zejin Yang , Shunqing Wu , Xin Zhao , Manh Cuong Nguyen , Shu Yu , Tongqi Wen , Ling Tang , Fuxiang Li , Kai-Ming Ho , Cai-Zhuang Wang

The magnetic properties of EuAlSi, a compound comprising a honeycomb lattice of Al and Si atoms and a triangular lattice of Eu atoms, are presented. Moreover, we have prepared the Eu1-xSrxAlSi solid solution, to study the evolution of the…

Strongly Correlated Electrons · Physics 2024-12-18 Dorota I. Walicka , Olivier Blacque , Karolina Gornicka , Jonathan S. White , Tomasz Klimczuk , Fabian O. von Rohr

Half-metals and spin gapless semiconductors are promising candidates for spintronic applications due to the complete (100%) spin polarization of electrons around the Fermi level. Based on recent experimental and theoretical findings of…

Mesoscale and Nanoscale Physics · Physics 2016-04-25 Guoying Gao , Guangqian Ding , Jie Li , Kailun Yao , Menghao Wu , Meichun Qian

Developing electrode materials with exceptional electrical conductivity, robust chemical stability, rapid charge and discharge rates, and high storage capacity is essential for advancing high-performance metal-ion batteries. This study…

Materials Science · Physics 2025-04-30 Irina I. Piyanzina , Regina M. Burganova , Sadegh Kaviani , Oleg V. Nedopekin , Hayk Zakaryan

Skyrmions, spin spirals, and other chiral magnetization structures developing in materials with intrinsic Dzyaloshinsky-Moriya Interaction display unique properties that have been the subject of intense research in thin-film geometries.…

Mesoscale and Nanoscale Physics · Physics 2021-03-11 Swapneel Amit Pathak , Riccardo Hertel

EuB6 is a low carrier density ferromagnet which exhibits large magnetoresistance, positive or negative depending on temperature. The formation of magnetic polarons just above the magnetic critical temperature has been suggested by spin-flip…

Strongly Correlated Electrons · Physics 2009-11-10 M. J. Calderon , L. G. L. Wegener , P. B. Littlewood

It has recently been possible to synthesize ordered assemblies composed of magnetic superatomic clusters Ni9Te6(PEt3)8 separated by C60 and study their magnetic behavior. We have carried out theoretical studies on model systems consisting…

Mesoscale and Nanoscale Physics · Physics 2016-12-30 Pallabi Sutradhar , Vikas Chauhan , Shiv N. Khanna , Jayasimha Atulasimha