Magnetic and magneto-optical properties of oxide glasses
... and B terms up to room temperature. Far from the resonance, responsible for FR, A and C terms relate as B2kT=hn0 ; where n0 is the resonance frequency. At T ¼ 300 K and n0 ¼ 50000 cm1 (l0 ¼ 200 nm) this ratio is E0.8 102. The relative value of term B cannot be estimated in general case, but usua ...
... and B terms up to room temperature. Far from the resonance, responsible for FR, A and C terms relate as B2kT=hn0 ; where n0 is the resonance frequency. At T ¼ 300 K and n0 ¼ 50000 cm1 (l0 ¼ 200 nm) this ratio is E0.8 102. The relative value of term B cannot be estimated in general case, but usua ...
Paper
... Shapiro-like steps on the current-voltage characteristic is calculated and analyzed for the transverse geometry at low temperatures. A simple physical picture of the vortex motion in a washboard periodic pinning potential, tilted due to the presence of the dimensionless dc driving force, is elucidat ...
... Shapiro-like steps on the current-voltage characteristic is calculated and analyzed for the transverse geometry at low temperatures. A simple physical picture of the vortex motion in a washboard periodic pinning potential, tilted due to the presence of the dimensionless dc driving force, is elucidat ...
Resonant X-Ray Scattering Studies of Ruthenium Oxides and
... Transition metal oxides have been intensively studied in the last years due to their interesting physical phenomena resulting from the complex interplay between spin, charge, lattice and orbital degrees of freedom. However, the strong coupling between the various degrees of freedom makes an understa ...
... Transition metal oxides have been intensively studied in the last years due to their interesting physical phenomena resulting from the complex interplay between spin, charge, lattice and orbital degrees of freedom. However, the strong coupling between the various degrees of freedom makes an understa ...
High hole and electron mobilities using Strained Si
... provides a quantum well for the electron in the surface as seen in the Fig 3. Thus, the fraction of the electron wavefunction that exists in the Si cap will be high due to the band offset but could be varied by changing hSi cap. A thick layer of Si should cause all of the electron wavefunction to re ...
... provides a quantum well for the electron in the surface as seen in the Fig 3. Thus, the fraction of the electron wavefunction that exists in the Si cap will be high due to the band offset but could be varied by changing hSi cap. A thick layer of Si should cause all of the electron wavefunction to re ...
Phase diagram of ultrathin ferromagnetic films with perpendicular
... stripe-domain structure, with widths L 5. Considering the two inequivalent types of stripe domains to form a single unit, this structure may be thought of as a two-dimensional smectic crystal. It is subject to a weak stripe orientation energy. With increasing temperature the domain system changes fr ...
... stripe-domain structure, with widths L 5. Considering the two inequivalent types of stripe domains to form a single unit, this structure may be thought of as a two-dimensional smectic crystal. It is subject to a weak stripe orientation energy. With increasing temperature the domain system changes fr ...
Comparison of Functionals for Metal Hexaboride Band Structure
... comprise the structural framework. Boron-boron and metal-boron bonds clearly influence the electronic properties extant in the hexaboride suite [3] and are explored in more detail in this work. Electronic properties are generally controlled by the behavior of electrons within a small energy range (~ ...
... comprise the structural framework. Boron-boron and metal-boron bonds clearly influence the electronic properties extant in the hexaboride suite [3] and are explored in more detail in this work. Electronic properties are generally controlled by the behavior of electrons within a small energy range (~ ...
magnetic moment and magnetization - Andrew.cmu.edu
... We now examine systems where the electrons responsible for the dipoles exist in localized states assigned to a particular atom. In systems (typically ionic) where the atomic orbitals responsible for the magnetic dipole moments are localized on specific atoms in a solid, discrete magnetic states can ...
... We now examine systems where the electrons responsible for the dipoles exist in localized states assigned to a particular atom. In systems (typically ionic) where the atomic orbitals responsible for the magnetic dipole moments are localized on specific atoms in a solid, discrete magnetic states can ...
Short Questions and Answers
... Comment on the statement “Heisenberg’s uncertainty principle is valid for all kinds of particles” Ans.: Heisenberg’s uncertainty principle is valid for all kinds of particles. For the atomic particles, there is always some uncertainty in the measurement of two conjugate quantities (whose product has ...
... Comment on the statement “Heisenberg’s uncertainty principle is valid for all kinds of particles” Ans.: Heisenberg’s uncertainty principle is valid for all kinds of particles. For the atomic particles, there is always some uncertainty in the measurement of two conjugate quantities (whose product has ...
Determination of magnetic anisotropies, interlayer coupling, and magnetization relaxation in FeCoB/Cr/FeCoB
... Soft magnetic materials have attracted a lot of attention through recent years because of their potential applications in spintronics, magnetic sensors, microwave structures, and high-density magnetic recording devices.1–6 Among these, layered film structures such as exchange biased bilayers have be ...
... Soft magnetic materials have attracted a lot of attention through recent years because of their potential applications in spintronics, magnetic sensors, microwave structures, and high-density magnetic recording devices.1–6 Among these, layered film structures such as exchange biased bilayers have be ...
Contents
... The electron theory of solids explains the structures and properties of solids through their electronic structure. This theory is applicable to all solids both metals and non metals. This theory also explains the bending in solids behavior of conductors and insulators, electrical and thermal conduct ...
... The electron theory of solids explains the structures and properties of solids through their electronic structure. This theory is applicable to all solids both metals and non metals. This theory also explains the bending in solids behavior of conductors and insulators, electrical and thermal conduct ...
magnetic ordering phenomena and dynamic fluctuations in cuprate
... appendix we briefly repeat the most important aspects). At higher doping levels the system moves into a superconducting phase, for which at the optimal doping level xopt ≈ 0.15 the maximum Tc is achieved. The optimal level separates the underdoped and overdoped regimes respectively below and above x ...
... appendix we briefly repeat the most important aspects). At higher doping levels the system moves into a superconducting phase, for which at the optimal doping level xopt ≈ 0.15 the maximum Tc is achieved. The optimal level separates the underdoped and overdoped regimes respectively below and above x ...
Chapter 1. Polymeric Liquid crystals. 1.1. Polymeric Liquid crystals
... LC with linear chain polymers where even if the isotropic phases are completely miscible, the phase separation occurs when the low-molecular system turns to the nematic state. In the case of LCSP no phase separation is possible. That way, the trend of the main chain to form the random coils will con ...
... LC with linear chain polymers where even if the isotropic phases are completely miscible, the phase separation occurs when the low-molecular system turns to the nematic state. In the case of LCSP no phase separation is possible. That way, the trend of the main chain to form the random coils will con ...
The structural and chemical origin of the oxygen redox activity in
... 0.83) and Li1.25–xMn0.5Nb0.25O2 (x = 0.75, 1.0), respectively. To simplify the presentation, the spin densities around metal ions are not drawn in the figures. In all cases, we observe a large spin density from the oxygen ions along the Li–O–Li configuration with the shape of an isolated O 2p orbital, ...
... 0.83) and Li1.25–xMn0.5Nb0.25O2 (x = 0.75, 1.0), respectively. To simplify the presentation, the spin densities around metal ions are not drawn in the figures. In all cases, we observe a large spin density from the oxygen ions along the Li–O–Li configuration with the shape of an isolated O 2p orbital, ...
Electronic structure and electric-field gradient analysis in Ce In 3
... We have calculated the density of states 共DOS兲 in the absence of both spin-polarization 共SP兲 and spin orbit coupling 共SOC兲. This calculation has been performed using the chemical structure; Fig. 1共a兲. This is what we call the nonmagnetic 共NM兲 phase from now on. The SOC was then included in two indiv ...
... We have calculated the density of states 共DOS兲 in the absence of both spin-polarization 共SP兲 and spin orbit coupling 共SOC兲. This calculation has been performed using the chemical structure; Fig. 1共a兲. This is what we call the nonmagnetic 共NM兲 phase from now on. The SOC was then included in two indiv ...
High-temperature superconductivity
High-temperature superconductors (abbreviated high-Tc or HTS) are materials that behave as superconductors at unusually high temperatures. The first high-Tc superconductor was discovered in 1986 by IBM researchers Georg Bednorz and K. Alex Müller, who were awarded the 1987 Nobel Prize in Physics ""for their important break-through in the discovery of superconductivity in ceramic materials"".Whereas ""ordinary"" or metallic superconductors usually have transition temperatures (temperatures below which they superconduct) below 30 K (−243.2 °C), and must be cooled using liquid helium in order to achieve superconductivity, HTS have been observed with transition temperatures as high as 138 K (−135 °C), and can be cooled to superconductivity using liquid nitrogen. Until 2008, only certain compounds of copper and oxygen (so-called ""cuprates"") were believed to have HTS properties, and the term high-temperature superconductor was used interchangeably with cuprate superconductor for compounds such as bismuth strontium calcium copper oxide (BSCCO) and yttrium barium copper oxide (YBCO). However, several iron-based compounds (the iron pnictides) are now known to be superconducting at high temperatures.For an explanation about Tc (the critical temperature for superconductivity), see Superconductivity § Superconducting phase transition and the second bullet item of BCS theory § Successes of the BCS theory.