scholarly journals Numerical study of the frequency and temperature dependence of the ac magnetic susceptibility in presence of a static magnetic field in HTS

1999 ◽  
Vol 9 (2) ◽  
pp. 2223-2226 ◽  
Author(s):  
D. Di Gioacchino ◽  
P. Tripodi ◽  
F. Celani ◽  
A.M. Testa ◽  
S. Pace
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Static Magnetic Field ◽  
Numerical Study ◽  
Ac Magnetic Susceptibility

scholarly journals Slow magnetisation relaxation in tetraoxolene-bridged rare earth complexes

2017 ◽  
Vol 46 (40) ◽  
pp. 13756-13767 ◽  
Author(s):  
Maja A. Dunstan ◽  
Elodie Rousset ◽  
Marie-Emmanuelle Boulon ◽  
Robert W. Gable ◽  
Lorenzo Sorace ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Rare Earth ◽  
Slow Relaxation ◽  
Rare Earth Complexes ◽  
Zero Field ◽  
Ac Magnetic Susceptibility ◽  
Quantum Tunnelling ◽  
Dc Magnetic Field

Two tetraoxolene-bridged dinuclear Dy(iii) complexes exhibit slow relaxation in ac magnetic susceptibility studies with zero-field quantum tunnelling of the magnetisation that is suppressed by the application of a dc magnetic field.

A numerical study on the effect of static magnetic field on the hemodynamics of magnetic fluid in biological porous media

2020 ◽  
Vol 141 (5) ◽  
pp. 1543-1558
Author(s):  
Seyed Mahdi Hosseinikhah ◽  
Borhan Beigzadeh ◽  
Majid Siavashi ◽  
Mahdi Halabian
Keyword(s):  
Magnetic Field ◽  
Porous Media ◽  
Static Magnetic Field ◽  
Magnetic Fluid ◽  
Numerical Study

scholarly journals Alternating current magnetic susceptibility of a ferronematic

2017 ◽  
Vol 8 ◽  
pp. 2515-2520 ◽  
Author(s):  
Natália Tomašovičová ◽  
Jozef Kováč ◽  
Veronika Gdovinová ◽  
Nándor Éber ◽  
Tibor Tóth-Katona ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Soft Matter ◽  
Experimental Studies ◽  
Bias Field ◽  
Information Storage ◽  
Isotropic Phase ◽  
Ac Magnetic Susceptibility ◽  
Bias Magnetic Field ◽  
Dc Bias

We report on experimental studies focusing on the dynamic ac magnetic susceptibility of a ferronematic. It has been shown recently, that in the isotropic phase of a ferronematic, a weak dc bias magnetic field of a few oersteds increases the ac magnetic susceptibility. This increment vanishes irreversibly if the substance is cooled down to the nematic phase, but can be reinduced by applying the dc bias field again in the isotropic phase [Tomašovičová, N. et al. Soft Matter 2016, 12, 5780–5786]. The effect has no analogue in the neat host liquid crystal. Here, we demonstrate that by doubling the concentration of the magnetic nanoparticles, the range of the dc bias magnetic field to which the ferronematic is sensitive without saturation can be increased by about two orders of magnitude. This finding paves a way to application possibilities, such as low magnetic field sensors, or basic logical elements for information storage.

scholarly journals The AC Multi-Harmonic Magnetic Susceptibility Measurement Setup at the LNF-INFN

2014 ◽  
Vol 568-570 ◽  
pp. 82-89 ◽  
Author(s):  
Sheng Hao Wang ◽  
Augusto Marcelli ◽  
Daniele Di Gioacchino ◽  
Zi Yu Wu
Keyword(s):  
Magnetic Field ◽  
Magnetic Susceptibility ◽  
Materials Science ◽  
Superconducting Magnet ◽  
Magnetic Response ◽  
Ac Magnetic Susceptibility ◽  
Frequency Range ◽  
Control Data ◽  
Dc Magnetic Field ◽  
User Friendly

The AC magnetic susceptibility is a fundamental method in materials science, which allows to probe the dynamic magnetic response of magnetic materials and superconductors. The LAMPS laboratory at the Laboratori Nazionali di Frascati of the INFN hosts an AC multi-harmonic magnetometer that allows performing experiments with an AC magnetic field ranging from 0.1 to 20 Gauss and in the frequency range from 17 to 2070 Hz. A DC magnetic field from 0 to 8 T produced by a superconducting magnet can be applied, while data may be collected in the temperature range 4.2-300 K using a liquid He cryostat under different temperature cycles setups. The first seven AC magnetic multi-harmonic susceptibility components can be measured with a magnetic sensitivity of 1x10-6 emu and a temperature precision of 0.01 K. Here we will describe in detail about schematic of the magnetometer, special attention will be dedicated to the instruments control, data acquisition framework and the user-friendly LabVIEW-based software platform.

Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field

2004 ◽  
Vol 272-276 ◽  
pp. 1231-1232
Author(s):  
K. Suenaga ◽  
G. Oomi ◽  
Y. Uwatoko ◽  
T. Sakai ◽  
K. Saito ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Static Magnetic Field
Sign in / Sign up

Export Citation Format

Share Document