Molecular magnetic properties via formal annihilation of paramagnetic contribution to electronic current density

We have found the correlation between nanoscopic phase separation in the copper-oxygen planes of YBCO and TlBCCO and the transport and magnetic properties of these materials in the a-b planes such as: the temperature dependence of the critical current density Jc( T ), the temperature dependence of the superfluid density ns( T )∝1/λ2( T ) at low temperatures, the temperature dependence of the normalized logarithmic relaxation rate S(T), and the dependence of the effective energy barrier against vortex motion on the current density Ueff( J ). These properties are controlled by the ratio of the amount of an underdoped filamentary phase to that of an optimally doped one.

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Adiabatic Electronic Motion in Forming Covalent Bond

10.26434/chemrxiv.7221953.v1 ◽

2018 ◽

Author(s):

Michihiro Okuyama ◽

Fumihiko Sakata

Keyword(s):

Current Density ◽

Covalent Bond ◽

Displacement Current ◽

Dynamical Process ◽

Electronic Density ◽

Electronic Current ◽

Electronic Motion ◽

Null Value ◽

Current Densities ◽

The One

<div>In studying a dynamical process of the chemical reaction, it is decisive to get appropriate information from an electronic current density. To this end, we divide one-body electronic density into a couple of densities, that is, an electronic sharing density and an electronic contraction density. Since the one-body electronic current density defi ned directly through the microscopic electronic wave function gives null value under the Born-Oppenheimer molecular dynamics, we propose to employ the Maxwell's displacement current density de fined by means of the one-body electronic density obtained under the same approximation. Applying the electronic sharing and the electronic contraction current densities to a hydrogen molecule, we show these densities give important physical quantities for analyzing a dynamical process of the covalent bond.</div>

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Changing the Critical Current Density and Magnetic Properties of YBa $_2$ Cu $_3$ O $_7$ by Using Large Antidots

IEEE Transactions on Applied Superconductivity ◽

10.1109/tasc.2018.2808439 ◽

2018 ◽

Vol 28 (4) ◽

pp. 1-5 ◽

Cited By ~ 5

Author(s):

Antony Jones ◽

Jonathan George ◽

Sergey A. Fedoseev ◽

Simon K. H. Lam ◽

Jia Du ◽

...

Keyword(s):

Magnetic Properties ◽

Critical Current Density ◽

Critical Current ◽

Current Density

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Influence of current density on crystalline structure and magnetic properties of electrodeposited Co-rich CoNiW alloys

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2013.05.066 ◽

2013 ◽

Vol 141 (1) ◽

pp. 576-581 ◽

Cited By ~ 18

Author(s):

A.M.P. Sakita ◽

E.C. Passamani ◽

H. Kumar ◽

D.R. Cornejo ◽

C.S. Fugivara ◽

...

Keyword(s):

Magnetic Properties ◽

Crystalline Structure ◽

Current Density

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Magnetic Investigations of Superconductive, Polycrystalline (RE)1Ba2Cu3O7−x Compounds (RE = Y, Gd, Ho, Dy)

MRS Proceedings ◽

10.1557/proc-99-361 ◽

1987 ◽

Vol 99 ◽

Author(s):

J. R. Thompson ◽

L. A. Boatner ◽

J. Brynestad ◽

D. K. Christen ◽

Y. C. Kim ◽

...

Keyword(s):

Magnetic Properties ◽

Rare Earth ◽

Critical Current Density ◽

Critical Current ◽

Current Density ◽

Substantial Degree

ABSTRACTMagnetic properties have been investigated for several rare-earth based, polycrystalline samples of high Tc superconductive “123” compounds with magnetic onset temperatures between 90 and 95 K. Analysis of the susceptibility × of samples based on Gd, Ho, and Dy indicates that the superconductive and magnetic properties are independent of one another to a substantial degree. Studies of the critical current density Jc are reported.

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Current density effect on magnetic properties of nanocrystalline electroplated Ni80Fe20/Cu composite wires

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2005.08.012 ◽

2006 ◽

Vol 302 (1) ◽

pp. 113-117 ◽

Cited By ~ 15

Author(s):

H.L. Seet ◽

X.P. Li ◽

Z.J. Zhao ◽

L.C. Wong ◽

H.M. Zheng ◽

...

Keyword(s):

Magnetic Properties ◽

Current Density ◽

Density Effect ◽

Composite Wires

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Influence of Organic Additive Benzene Sulfamide on the Magnetic Behavior of Electrodeposited CoMnP Thin Film Alloys

Sensor Letters ◽

10.1166/sl.2019.4163 ◽

2019 ◽

Vol 17 (11) ◽

pp. 909-912

Author(s):

M.RM. Krishnappa ◽

K.V. Kannan Nithin

Keyword(s):

Thin Films ◽

Magnetic Properties ◽

Current Density ◽

Ph Value ◽

Magnetic Behavior ◽

Organic Additive ◽

Additive Concentration ◽

Electro Deposition ◽

Nano Crystalline ◽

Micro Cracks

Electro deposition of CoMnP thin films was carried out for different concentrations of organic additive Benzene sulfamide at a constant bath pH value and for various current density. Magnetic properties such as coercivity, saturation magnetization and the surface morphology were investigated for electrodeposited CoMnP thin films. The characteristics of the CoMnP thin films were found to attain enhanced values, because of the variation in the concentration of the bath solution. The Scanning Electron Microscope (SEM) micrographs of the CoMnP thin films for various bath compositions and additive concentration exhibited different micro cracks. From the X-ray diffraction pattern, structure of the CoMnP alloy films was analyzed and it was found to be Hesagonal Close Packed (HCP) structures with the dominant microstructure and all the co-deposited thin films were found to exhibit Nano crystalline structure. The magnetic properties of the specimens were characterized using Vibrating Sample Magnetometer (VSM). Adhesion and hardness of the electroplated films influenced by organic additive Benzene Sulfamide were also investigated. The magnetic properties were highly influenced by the addition of the organic additive Benzene Sulfamide for various bath composition and bath conditions. Under best condition involving addition of 0.2 M of NaH2PO2 and 2 g/L of Benzene Sulfamide acid at current density 5 mA/cm2 and time of deposition 60 Minutes, the thickness of the film was found to be 4.6 micrometer with coercivity 1500 Oe.

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