scholarly journals Effects of magnetic impurity concentration and hole carriers on ferromagnetic stability of Li(ZnCr)As and Li(ZnCrCu)As

2021 ◽  
Vol 22 ◽  
pp. 103901
Author(s):  
ManFu Wang ◽  
Yan Cui ◽  
Shuang Xing ◽  
HuaLong Tao ◽  
ShiMin Liu ◽  
...  
Keyword(s):  
Impurity Concentration ◽  
Magnetic Impurity

MAGNETIC IMPURITY EFFECTS IN ZIGZAG CARBON NANOTUBES

2007 ◽  
Vol 06 (06) ◽  
pp. 453-459
Author(s):  
ROSTAM MORADIAN ◽  
ALI FATHALIAN
Keyword(s):  
Carbon Nanotubes ◽  
Critical Temperature ◽  
Impurity Concentration ◽  
Exchange Coupling ◽  
Magnetic Impurity ◽  
Coupling Constant ◽  
Impurity Effects ◽  
Impurity Spin ◽  
Band Filling ◽  
Impurity Doping

We investigate effects of magnetic impurity doping on the Curie critical temperature (Tc) of semiconducting carbon nanotubes. Variation of Tc as a function of impurity concentration for different coupling constant (J), and spin value (S) are calculated. We found by increasing J and S, the critical temperature is increased. Also we calculated Tc in terms of band filling for different impurity concentration, exchange coupling and impurity spin magnitude.

The nucleation of cavities at grain boundaries

1987 ◽  
Vol 45 ◽  
pp. 288-291
Author(s):  
P. J. Goodhew
Keyword(s):  
Surface Tension ◽  
Surface Energy ◽  
Grain Boundaries ◽  
Radiation Damage ◽  
Impurity Concentration ◽  
Driving Force ◽  
Nucleation And Growth ◽  
Phase Boundaries ◽  
Cavity Nucleation ◽  
Spherical Bubble

Cavity nucleation and growth at grain and phase boundaries is of concern because it can lead to failure during creep and can lead to embrittlement as a result of radiation damage. Two major types of cavity are usually distinguished: The term bubble is applied to a cavity which contains gas at a pressure which is at least sufficient to support the surface tension (2g/r for a spherical bubble of radius r and surface energy g). The term void is generally applied to any cavity which contains less gas than this, but is not necessarily empty of gas. A void would therefore tend to shrink in the absence of any imposed driving force for growth, whereas a bubble would be stable or would tend to grow. It is widely considered that cavity nucleation always requires the presence of one or more gas atoms. However since it is extremely difficult to prepare experimental materials with a gas impurity concentration lower than their eventual cavity concentration there is little to be gained by debating this point.

Effects of finite impurity concentration in van Hove superconductors

1998 ◽  
Vol 58 (5) ◽  
pp. 2448-2451
Author(s):  
I. Tifrea ◽  
M. Crisan
Keyword(s):  
Impurity Concentration

scholarly journals Attractive Fermi polarons at nonzero temperatures with a finite impurity concentration

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Hui Hu ◽  
Brendan C. Mulkerin ◽  
Jia Wang ◽  
Xia-Ji Liu
Keyword(s):  
Impurity Concentration

Kinetics of the Variation in the Magnetic Impurity Ion Concentration in Pb1–x–ySn x V y Te Alloys upon Doping

2018 ◽  
Vol 52 (7) ◽  
pp. 828-835
Author(s):  
E. P. Skipetrov ◽  
N. S. Konstantinov ◽  
L. A. Skipetrova ◽  
A. V. Knotko ◽  
V. E. Slynko
Keyword(s):  
Magnetic Impurity ◽  
Ion Concentration ◽  
Impurity Ion ◽  
Kinetics Of

Thermodynamics of a magnetic impurity in a small metallic grain

2003 ◽  
Vol 93 (10) ◽  
pp. 8358-8360
Author(s):  
P. Schlottmann
Keyword(s):  
Magnetic Impurity
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