Experimental study of cooling enhancement using a Fe3O4 magnetic nanofluid, in an applied magnetic field

We present measurements of the in-plane (ρab) and out-of-plane (ρc) resistivity in BSCCO single crystals. The resistivities are measured simultaneously on the same sample by means of a multi-terminal technique. Results are presented in the normal state and in the superconducting state, both in presence and in absence of an applied magnetic field. We underline the main differences with standard four probe measurements, showing in which cases the new method is strictly needed to avoid erroneous results. The technique is also able to test the locality of the dynamic: we present an accurate experimental analysis of the temperature and magnetic field ranges where the dynamic is local or non local. We finally show that above Tc this method gives results reliable enough to allow for a detailed study of the excess conductivity. We find that the data do not follow simple Aslamazov-Larkin laws in temperature ranges wider 1K, and that an accurate description of the data over a wide temperature range must include the effects of a short-wavelength cutoff in the fluctuational spectrum.

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Studies in magnetochemical engineering: Part V. An experimental study of fluidized beds with screen packing and applied magnetic field

Powder Technology ◽

10.1016/0032-5910(88)80011-1 ◽

1988 ◽

Vol 56 (4) ◽

pp. 279-292 ◽

Cited By ~ 7

Author(s):

R.D. Colberg ◽

Y.A. Liu

Keyword(s):

Magnetic Field ◽

Experimental Study ◽

Applied Magnetic Field ◽

Fluidized Beds ◽

Screen Packing

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Experimental study of the subcooled flow boiling heat transfer of magnetic nanofluid in a vertical tube under magnetic field

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-019-09057-z ◽

2019 ◽

Vol 140 (6) ◽

pp. 2805-2816 ◽

Cited By ~ 2

Author(s):

Sajjad Ahangar Zonouzi ◽

Rahmatollah Khodabandeh ◽

Habibollah Safarzadeh ◽

Habib Aminfar ◽

Mousa Mohammadpourfard ◽

...

Keyword(s):

Magnetic Field ◽

Heat Transfer ◽

Experimental Study ◽

Boiling Heat Transfer ◽

Flow Boiling ◽

Vertical Tube ◽

Subcooled Flow Boiling ◽

Magnetic Nanofluid ◽

Subcooled Flow ◽

Flow Boiling Heat Transfer

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Резонансные ступени тока в джозефсоновских структурах с прослойкой из материала, обладающего сильным спин-орбитальным взаимодействием

Физика твердого тела ◽

10.21883/ftt.2020.09.49758.03h ◽

2020 ◽

Vol 62 (9) ◽

pp. 1385

Author(s):

К.И. Константинян ◽

Г.А. Овсянников ◽

А.М. Петржик ◽

А.В. Шадрин ◽

Ю.В. Кислинский ◽

...

Keyword(s):

Magnetic Field ◽

Experimental Study ◽

Microwave Irradiation ◽

Interaction Energy ◽

High Spin ◽

Barrier Layer ◽

Applied Magnetic Field ◽

Orbit Interaction ◽

Spin Orbit ◽

Shapiro Steps

We report on results of experimental study of mesa heterostructures Nb/Au/Sr2IrO4/YBa2Cu3Ox with the barrier layer of Sr2IrO4, a material known as Mott antiferromagnetic insulator with high spin-orbit interaction energy, ESO ~ 0.4 eV. Under the influence of magnetic field H<15 Oe the resonant steps were registered at voltages Vn  1/L, inversely proportional to the width of the structures L. In contrast to the equidistant Fiske steps, changing the polarity of biasing current I, an asymmetry in Vn has been observed with a difference of voltage spacing between the steps. A change of applied magnetic field H has no effect of the voltages positions Vn , but the amplitudes of steps oscillate. Under microwave irradiation the Shapiro steps were observed demonstrating an oscillating behavior with power of applied microwaves.

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