Electron impact ionization of M-shell atoms

Haque, A. K. F.; Uddin, Md. Azhar; Basak, A. K.; Karim, K. R.; Saha, Bidhan C.; Malik, F.B.

doi:10.1088/0031-8949/74/3/014

Cited by 24 publications

(37 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Young's modulus extrapolated from the tensile stress-strain curve was about 20.8 GPa. Haque and Saif [8] produced 30 and 50 nm thick free-standing Al by sputtering process. Their TEM observation did not show any pores or voids within the material.…”

Section: Nanolayered Materials Applications Important Attributes Systemsmentioning

confidence: 99%

Mechanical Behavior of Multilayered Nanoscale Metal‐Ceramic Composites

et al. 2005

View full text Add to dashboard Cite

Single and multilayered structures at nano‐length scale are very attractive materials due to their high strength, toughness, and wear resistance relative to conventional laminated composites. In this study, single layered Al, SiC, and multilayered Al/SiC composites were synthesized by DC/RF magnetron sputtering. The microstructure of the multilayered structures was characterized by scanning electron microscopy (SEM). The elastic and plastic behavior of single and multilayered materials was investigated by nanoindentation and tensile testing. For nanoindentation, an analytical model was employed to subtract the contribution of the Si substrate, in order to extract the true modulus of the films. Finite element simulations were employed to confirm the analytical predictions and to investigate the anisotropic elastic behavior of the multilayered composite. It was concluded that while indentation provides reasonable Young's modulus and hardness values in monolithic layers, it does not provide the true modulus of the multilayered materials because of their inherent anisotropy.

show abstract

Section: Nanolayered Materials Applications Important Attributes Systemsmentioning

confidence: 99%

Mechanical Behavior of Multilayered Nanoscale Metal‐Ceramic Composites

et al. 2005

View full text Add to dashboard Cite

show abstract

“…Tm T (15) where T m is defined by (8), κ N = T (µ ↑ m ↑ +µ ↓ m ↓ )/π 2 is the heat conductivity of the N phase, and T F is the Fermi temperature. The functional forms of G( 1 k F a , m r ) and T m ( 1 k F a , m r ) will be discussed shortly.…”

Section: Results and Disscusionmentioning

confidence: 99%

“…The functional forms of G and T m in (15) have been determined by the method of leastsquares fit. They are valid for the whole BCS regime and reproduce the above results very accurately: The resulting functional dependence of κ/κ N on the temperature and interaction strength is depicted in Fig.…”

Section: Results and Disscusionmentioning

confidence: 99%

“…In this connection, extensive studies have been reported that propose various candidates for the pairing state, including the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state [1,2], the BCSnormal phase separation [3], the Sarma state [4], the p-wave pairing state [5,6] and the deformed Fermi surface superfluid [7]. Of central importance is the phase separation of a superfluid (SF) paired core surrounded by a polarized normal (N) phase, where, in addition to theoretical studies [8][9][10][11][12][13][14][15][16][17][18][19], important experimental work has been carried out [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dependence of interface conductivity on relevant physical parameters in polarized Fermi mixtures

Ebrahimian

Mehrafarin

Afzali

2012

Physica C: Superconductivity

View full text Add to dashboard Cite

We consider a mass-asymmetric polarized Fermi system in the presence of Hartree-Fock (HF) potentials. We concentrate on the BCS regime with various interaction strengths and numerically obtain the allowed values of the chemical and HF potentials, as well as the mass ratio. The functional dependence of the heat conductivity of the N-SF interface on relevant physical parameters, namely the temperature, the mass ratio, and the interaction strength, is obtained. In particular, we show that the interface conductivity starts to drop with decreasing temperature at the temperature, T m , where the mean kinetic energy of the particles is just sufficient to overcome the SF gap. We obtain T m as a function of the mass ratio and the interaction strength. The variation of the heat conductivity, at fixed temperature, with the HF potentials and the imbalance chemical potential is also obtained. Finally, because the range of relevant temperatures increases for larger values of the mass ratio, we consider the 6 Li-40 K mixture separately by taking the temperature dependence of the pair potential into account.

show abstract

“…Our approach is motivated by the observation that the condensate mode is squeezed [55] where the squeezing parameter scales with the system size to have no thermodynamic effect. By variational calculation of the ground state wave function, the pair state has been found to be a multimode squeezed vacuum state [56].…”

Section: Introductionmentioning

confidence: 99%

Bose condensation of squeezed light

Morawetz

2019

Phys. Rev. B

View full text Add to dashboard Cite

Light with a chemical potential and no mass is shown to possess a general phase-transition curve to Bose-Einstein condensation. This limiting density and temperature range is found by the diverging in-medium potential range of effective interaction. The inverse expansion series of the effective interaction from Bethe-Salpeter equation is employed exceeding the ladder approximation. While usually the absorption and emission with Dye molecules is considered, here it is proposed that squeezing can create also such a mean interaction leading to a chemical potential. The equivalence of squeezed light with a complex Bogoliubov transformation of interacting Bose system with finite lifetime is established with the help of which an effective gap is deduced where the squeezing parameter is related to an equivalent gap by |∆(ω)| = ω/(coth 2|z(ω)| − 1). This gap phase creates a finite condensate in agreement with the general limiting density and temperature range. In this sense it is shown that squeezing induces the same effect on light as an interaction leading to possible condensation. The phase diagram for condensation is presented due to squeezing and the appearance of two gaps is discussed.

show abstract

Electron impact ionization of M-shell atoms

Cited by 24 publications

References 44 publications

Mechanical Behavior of Multilayered Nanoscale Metal‐Ceramic Composites

Mechanical Behavior of Multilayered Nanoscale Metal‐Ceramic Composites

Dependence of interface conductivity on relevant physical parameters in polarized Fermi mixtures

Bose condensation of squeezed light

Contact Info

Product

Resources

About