نتایج جستجو برای: saturation magnetization

تعداد نتایج: 64601  

Journal: :Journal of nanoscience and nanotechnology 2012
Ke-Xia Liu Fang Lan Wen Jiang Xiao-Bo Zeng Hao Hu Yao Wu Zhong-Wei Gu

Superparamagnetic iron oxide nanoparticles (SPIONs) with high saturation magnetization are successfully synthesized via thermal decomposition method by doping Mn and Zn elements simultaneously. The synthesis procedure was modified according to the thermal stabilities of the precursors, in order to ensure that the stoichiometry of the synthesized samples can be retained exactly from the starting...

2011
A. N. Popova

Nanoparticles of iron-cobalt have attracted great interest in recent years because of their unique physical and chemical properties because of their industrial importance in preparing magnetic recording materials, pigments, catalysts, etc. With an objective to develop magnetic materials with high saturation magnetization Fe-Co nanosysytems were synthesized by method of chemical reduction reacti...

2017
Soraya Sangiao César Magén Darius Mofakhami Grégoire de Loubens José María De Teresa

In this work, we present a detailed investigation of the magnetic properties of cobalt nanospheres grown on cantilever tips by focused electron beam induced deposition (FEBID). The cantilevers are extremely soft and the cobalt nanospheres are optimized for magnetic resonance force microscopy (MRFM) experiments, which implies that the cobalt nanospheres must be as small as possible while bearing...

Journal: :Magnetic resonance in medicine 2011
Peter C M van Zijl Nirbhay N Yadav

Chemical exchange saturation transfer (CEST) imaging is a relatively new magnetic resonance imaging contrast approach in which exogenous or endogenous compounds containing either exchangeable protons or exchangeable molecules are selectively saturated and after transfer of this saturation, detected indirectly through the water signal with enhanced sensitivity. The focus of this review is on bas...

2011
Costel Constantin Kangkang Wang Abhijit Chinchore Han-Jong Chia John Markert Arthur R. Smith

The structural, magnetic, and electronic properties of dilute Mn-doped scandium nitride thin films grown by radio frequency N-plasma molecular beam epitaxy are explored. The results indicate a small magnetization extending up to as high as 350K. There is a slight dependence on the manganese concentration, with the lower Mn concentration showing a larger saturation magnetization.

2001
Hidekazu Tanaka Toshio Ono Hiroko Aruga Katori Hiroyuki Mitamura Fumihiro Ishikawa

The crystal structure of Cs2CuBr4 is the same as that of Cs2CuCl4, which has been characterized as a spin1 2 quasi-two-dimensional frustrated system. The magnetic properties of Cs2CuBr4 were investigated by magnetization and specific heat measurements. The phase transition at zero magnetic field was detected at TN = 1.4 K. It was observed that the magnetization curve has a plateau at about one-...

2013
Volodymyr P. Kravchuk Oleksii M. Volkov Denis D. Sheka Yuri Gaididei

The magnetization behavior of long nanowires with square cross section under the influence of strong perpendicular spin-polarized current is studied theoretically. The study is based on Landau-Lifshitz-Slonczewski phenomenology. Without the current the wire is magnetized uniformly along its axis. For small currents the wire magnetization remains uniform, but it inclines with respect to the wire...

2003
M. T. Batchelor X. - W. Guan N. Oelkers Z. - J. Ying

We investigate the quantum phase diagram of the exactly solved mixed spin-(1 2 , 1) ladder via the thermodynamic Bethe ansatz (TBA). In the absence of a magnetic field the model exhibits three quantum phases associated with su(2), su(4) and su(6) symmetries. In the presence of a strong magnetic field, there is a third and full saturation magnetization plateaux within the strong antiferromagneti...

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