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The magnetic anisotropy of La0.7Sr0.3MnO3 nanopowders was measured as a function of temperature by the modified singular point detection technique. In this method singularities indicating the anisotropy field were determined analyzing ac…

Materials Science · Physics 2015-06-12 I. Radelytskyi , P. Dluzewski , V. Dyakonov , P. Aleshkevych , W. Kowalski , P. Jarocki , H. Szymczak

We report on the structural, electric and magnetic properties of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$ ferromagnetic nanotubes, displaying azimuthal magnetization. The tubes are fabricated using electroless plating in polycarbonate…

We have measured the magnetoresistance of stretched sheets of carbon nanotubes in temperatures ranging from 2 K to 300 K and in magnetic fields up to 9 T, oriented either perpendicular or parallel to the plane of the sheets. The samples…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 E. Cimpoiasu , G. A. Levin , B. White , D. Lashmore

We have studied the magnetic behavior of dextran-coated magnetite (Fe$_3$O$_4$) nanoparticles with median particle size $\left<d\right>=8$ $nm$. Magnetization curves and in-field M\"ossbauer spectroscopy measurements showed that the…

Materials Science · Physics 2007-05-23 E. Lima , A. L. Brandl , A. D. Arelaro , G. F. Goya

We report temperature dependent magnetization and neutron diffraction measurements on the corundum related magnetoelectric antiferromagnet Mn$_{4}$Ta$_{2}$O$_{9}$. Measurements performed on a single crystalline specimen reveal that the…

Strongly Correlated Electrons · Physics 2021-01-20 Soumendra Nath Panja , Pascal Manuel , Sunil Nair

We report on the synthesis of ferromagnetic cobalt nanocubes of various sizes using thermal pyrolysis method and the effect of shape anisotropy on the static and dynamic magnetic properties were studied. Shape anisotropy of approximately 10…

Materials Science · Physics 2010-03-10 D. Srikala , V. N. Singh , A. Banerjee , B. R. Mehta

High fraction of the surface atoms considerably enhances the influence of size and shape on the magnetic and electronic properties of nanoparticles. Shape effects in ferromagnetic nanoparticles are well understood and allow to set and…

Mesoscale and Nanoscale Physics · Physics 2013-08-16 H. Gomonay , S. Kondovych , V. Loktev

Magnetic anisotropy has been measured for the ferromagnetic La0.7Sr0.3CoO3 perovskite from an analysis of the high-field part of the magnetization vs. field curves, i.e., the magnetic saturation regime. These measurements give a magnetic…

Strongly Correlated Electrons · Physics 2009-11-10 J. Mira , J. Rivas , M. Vazquez , M. R. Ibarra , R. Caciuffo , M. A. Senaris Rodriguez

The magnetic and transport properties of La_{0.5}Sr_{0.5}CoO_{3-\delta} film grown on a LaAlO_3 substrate by pulsed-laser deposition are studied. The properties are found to be influenced by the magnetic anisotropy and inhomogeneity.…

Materials Science · Physics 2009-11-10 B. I. Belevtsev , V. B. Krasovitsky , A. S. Panfilov , I. N. Chukanova

Magnetic textures in the ferromagnetic phases of La$_{1-x}$Sr$_x$MnO$_3$ for 0.15 $< x <$ 0.30 have been investigated by Lorentz microscopy combined with small-angle electron diffraction experiments. Various types of magnetic textures…

Strongly Correlated Electrons · Physics 2020-05-05 A. Kotani , H. Nakajima , K. Harada , Y. Ishii , S. Mori

The magnetic properties of carbon nanotube encapsulated nickel nanowires (C.E. nanowires of diameter ~ 10 nm), and its comparison to other forms of Ni are carried out in this work. The saturation magnetization (M_s) and coercivity (H_c) for…

Mesoscale and Nanoscale Physics · Physics 2010-09-21 Paramita Kar Choudhury , S. Banerjee , S. Ramaprabhu , K. P. Ramesh , Reghu Menon

A silicon micromechanical torsional oscillator is used to measure the hysteresis loops of two manganite La_0.67Ca_0.33MnO_3 nanotubes at different temperatures, applying an external field along its main axes. These structures are composed…

Mesoscale and Nanoscale Physics · Physics 2020-05-18 M. I. Dolz , S. D. Calderón Rivero , H. Pastoriza , F. Romá

It was experimentally observed that both magnetic anisotropy and spin-orbit interaction strength change when the magnetization of the nanomagnet is reversed. This indicates a variation in spin-orbit interaction strength depending on whether…

Mesoscale and Nanoscale Physics · Physics 2024-07-10 Vadym Zayets

We investigate submicron ferromagnetic PdNi thin-film strips intended as contact electrodes for carbon nanotube-based spintronic devices. The magnetic anisotropy and micromagnetic structure are measured as function of temperature and aspect…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 D. Steininger , A. K. Huettel , M. Ziola , M. Kiessling , M. Sperl , G. Bayreuther , Ch. Strunk

Through magnetic linear dichroism spectroscopy, the magnetic susceptibility anisotropy of metallic single-walled carbon nanotubes has been extracted and found to be 2-4 times greater than values for semiconducting single-walled carbon…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 T. A. Searles , Y. Imanaka , T. Takamasu , H. Ajiki , J. A. Fagan , E. K. Hobbie , J. Kono

Nanoparticles (size 20, 40 and 60 nm) of Pr_0.5Sr_0.5MnO_3 are prepared by sol-gel technique and their magnetic properties are studied using ferromagnetic resonance and magnetization measurements. A comparison with the properties of the…

Strongly Correlated Electrons · Physics 2007-06-13 S. S. Rao , S. V. Bhat

Motivated in part by experiments performed by M.H. Pan et al. (nanoletters, v.5, p 83, 2005), we have undertaken a theoretical study of the the magnetic properties of two-monolayer thick Co nanoplatelets with an equilateral triangular…

Other Condensed Matter · Physics 2009-11-11 T. O. Strandberg , C. M. Canali , A. H. MacDonald

Magnetization of soft-ferromagnetic nano- and microtubes of nanometer-thin walls (a single-widening rolled-up nanomembranes) is theoretically studied using analytical and numerical approaches including different stress-induced anisotropies.…

Mesoscale and Nanoscale Physics · Physics 2016-09-12 Andrzej Janutka

Phase separated perovskite manganites have competing phases with different crystal structures, magnetic and electronic properties. Hence, strain effects play a critical role in determining the magnetic properties of manganite thin films.…

Strongly Correlated Electrons · Physics 2011-09-13 Hyoungjeen Jeen , Amlan Biswas

The magnetic and transport properties of La$_{0.5}$Sr$_{0.5}$CoO$_{3-\delta}$ film grown on a LaAlO$_3$ substrate by pulsed-laser deposition are studied. The properties are found to be influenced by a combined influence of the magnetic…

Materials Science · Physics 2009-11-07 B. I. Belevtsev , V. B. Krasovitsky , A. S. Panfilov , I. N. Chukanova
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