Contributors: GuiDe Tang, guangheng Wu, Wei-Hua Qi, Fengxia Hu, Li Ma, Zhuang-Zhi Li
... This study explains the electrical-transport and magnetic properties of Ni1-xCux alloys based on a new itinerant electron model for magnetic metals (IEM model) and a Weiss electron pair model (WEP model) [Physics Reports (2018), 758: 1-56]. The concepts of free electron (FE) and itinerant electron (IE) have been used for many years. What is the deference between the roles played by IEs and FEs in a magnetic metal or an alloy? This is very important to understand the valence electron structure. Herein, the valence electrons were classified into FEs, IEs, and local electrons (LEs) in a magnetic metal or an alloy. The FE concentration was estimated using the observed magnetic moments of the NiCu alloys. The temperature dependences of the resistivity of Ni1-xCux alloys with x 0.281 were fitted using an equivalent circuit with two channels. One of the channels corresponded to FEs and the other one to IEs. In addition, the dependence of Curie temperature of the Ni1-xCux alloys on the Cu content was explained using the WEP model.
Data for: Substrate heating effects on structural and ferromagnetic resonance properties of Co40Fe40B20 thin films
Contributors: Michael Heben, Adam Phillips, John Jones, Daniel Georgiev, Gail Brown
... Data files contain sample name and raw data of first derivative ferromagnetic resonance experiments. The pxp data files are igor pro files which have all of the plots and raw data used to fit the curves. Vibrating sample magnetometry curves are included as well for most samples. The ferromagnetic material being studied was Co40Fe40B20.
Data for: Influence of dipole interaction radius and dilution on phase transition in kagome artificial spin ice
Contributors: Petr Andriushchenko
... Wang-Landau modeling data of kagome artificial spin ice with dipole interaction cutoff radius (8 and 14 nearest neighbors). Also Wang-Landau modeling data of diluted kagome artificial spin ice with dipole interaction cutoff radius (14 nearest neighbors).
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Contributors: Loi Nguyen, Robert Cava
... The magnetic properties of Ba3TiRu2O9 , whose crystal structure is based on stacked triangular planar lattices of MO6 dimers and single MO6 octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be -29.5 K and 1.82 μB/f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.
Contributors: Simone Quondam Antonio, Ermanno Cardelli, Riccardo Donnini, Antonio Faba
... The authors intend to share the scripts that implement the magnetic model of the cubic grain they have developed and used to perform the simulations reported.
Contributors: Ioannis Panagiotopoulos, Dimitrios Kostopoulos
... Microwave assisted reversal of a nanocap.
Data for: Magnetic ordering in the nano-laminar ternary Mn2AlB2 using neutron and X - ray diffraction
Contributors: Daniel Potashnikov, Israel Felner, Amit Keren, Andreas Hoser, Sankalp Kota, Michel Barsoum, Oleg Rivin, Asaf Pesach, Louisiane Verger
... The following data contains the measured and Rietvelt refined results of the room temperature powder X-ray diffraction and neutron powder diffraction of Mn2Al11B2. The data is divided into 2 folders: XRD and NPD for the X-ray diffraction data and neutron diffraction data, respectively. The NPD data is split into different folders labeled by the temperature, at which the measurement was made. Each folder contains the raw data (.dat) file, the refinement control file used in the FULLPROF program (.pcr), and the files outputted after the refinement process (.out, .sum, .cif, .mcif).
Data for: Design of high resistivity light-rare-earth-based PrFe1.93 magnetostrictive alloys: Si doping and high-pressure annealing
Contributors: Chengchao Hu, Wenjian Lu, Wei Li, Tiannan Yang, Huaiyong Li, Peng Fu, Zhao Zhang, Wei-Feng Rao, Hairui Bai, Jigong Hao
... XRD+M-H+Electrical resistivity+Magnetostriction
Data for: Modulation in magnetic exchange interaction, core shell structure and Hopkinson’s peak with chromium substitution into Ni0.75Co0.25Fe2O4 nano particles
Contributors: uday bhasker sontu, musugu Venkata Ramana Reddy
... all characterization except DC conductivity