On ferromagnetism, paramagnetism and cohesive energy of transition metals and their alloys

1951 ◽  
Vol 12 (3) ◽  
pp. 418-429 ◽  
Author(s):  
T.G. Owe Berg
Keyword(s):  
Transition Metals ◽  
Cohesive Energy

scholarly journals Correlations of Equilibrium Properties and Electronic Structure of Pure Metals

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2932
Author(s):  
Jianhong Dai ◽  
Dongye He ◽  
Yan Song
Keyword(s):  
Electronic Structure ◽  
Transition Metals ◽  
Bulk Modulus ◽  
Critical Point ◽  
First Principles ◽  
Cohesive Energy ◽  
First Principles Calculations ◽  
Structure Parameter ◽  
Valence Transition ◽  
Pure Metals

First principles calculations were carried out to study the equilibrium properties of metals, including the electrons at bonding critical point; ebcp; cohesive energy; Ecoh; bulk modulus; B; and, atomic volume; V. 44 pure metals, including the s valence (alkali), p valence (groups III to V), and d valence (transition) metals were selected. In the present work, the electronic structure parameter ebcp has been considered to be a bridge connecting with the equilibrium properties of metals, and relationships between ebcp and equilibrium properties (V; Ecoh; and B) are established. It is easy to estimate the equilibrium properties (Ecoh; V, and B) of pure metals through proposed formulas. The relationships that were derived in the present work might provide a method to study the intrinsic mechanisms of the equilibrium properties of alloys and to develop new alloys.

COMPARISON OF THREE EQUATIONS OF STATE FOR TRANSITION METALS

2011 ◽  
Vol 25 (21) ◽  
pp. 2813-2821 ◽  
Author(s):  
RONGGANG TIAN ◽  
JIUXUN SUN ◽  
FEI YU ◽  
WEI YANG ◽  
XINYING XUE
Keyword(s):  
Equation Of State ◽  
Transition Metals ◽  
Compression Ratio ◽  
Cohesive Energy ◽  
Equations Of State ◽  
Energy Data ◽  
Practical Applications ◽  
Best Fitting ◽  
Compression Data

A modified generalized Morse (mGM) equation of state (EOS) is proposed that can incorporate the cohesive energy data correctly. It is compared with a four-parameter modified Rose EOS (MR EOS) which is proposed by following the Rose's approach and the Vinet EOS. The MR, mGM and Vinet EOSs are applied to five transition metals to fit all experimental compression data available. The results show that for all pressure ranges the mGM EOS gives the best fitting results. From the comparison of variation of pressure and energy versus compression ratio between MR and mGM EOS, it is clear that the pressure and energy of the MR EOS oscillate both in the neighborhood of (V/V0) ≈ 0.005 and in the range (V/V0) > 1. Such oscillations are physically incorrect, and the tendency of the mGM EOS are physically correct both in the neighborhood of (V/V0) ≈ 0.005 and in the range (V/V0) > 1. Generally speaking, the mGM EOS has evident advantage among the three EOSs, and the MR EOS's practical applications are seriously limited because of the physically incorrect oscillations.

Precipitation in silicon: Microanalysis

1988 ◽  
Vol 46 ◽  
pp. 474-475
Author(s):  
R.W. Carpenter
Keyword(s):  
Transition Metals ◽  
Spatial Resolution ◽  
Thin Foil ◽  
Precipitation Reaction ◽  
High Current ◽  
Reaction Products ◽  
Carbon And Nitrogen ◽  
Dielectric Layers ◽  
Precipitation Processes ◽  
Areas Of Interest

Interest in precipitation processes in silicon appears to be centered on transition metals (for intrinsic and extrinsic gettering), and oxygen and carbon in thermally aged materials, and on oxygen, carbon, and nitrogen in ion implanted materials to form buried dielectric layers. A steadily increasing number of applications of microanalysis to these problems are appearing. but still far less than the number of imaging/diffraction investigations. Microanalysis applications appear to be paced by instrumentation development. The precipitation reaction products are small and the presence of carbon is often an important consideration. Small high current probes are important and cryogenic specimen holders are required for consistent suppression of contamination buildup on specimen areas of interest. Focussed probes useful for microanalysis should be in the range of 0.1 to 1nA, and estimates of spatial resolution to be expected for thin foil specimens can be made from the curves shown in Fig. 1.

MAGNETIC STUDIES OF Clb-COMPOUNDS OF TRANSITION METALS

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-74-C1-75 ◽  
Author(s):  
K. ENDO ◽  
Y. FUJITA ◽  
R. KIMURA ◽  
T. OHOYAMA ◽  
M. TERADA
Keyword(s):  
Transition Metals ◽  
Magnetic Studies
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