Observing Spin Systems using COSY
... In the COSY spectrum of the dipeptide (Figure 6), the two amino acid moieties can easily be recognised due to their characteristic fingerprints that were observed in the COSY spectrum of the un-coupled amino acid. The same spin systems observed for the amino acids are translated into the COSY spectr ...
... In the COSY spectrum of the dipeptide (Figure 6), the two amino acid moieties can easily be recognised due to their characteristic fingerprints that were observed in the COSY spectrum of the un-coupled amino acid. The same spin systems observed for the amino acids are translated into the COSY spectr ...
Application Note 7: Observing Spin Systems using COSY
... In the COSY spectrum of the dipeptide (Figure 6), the two amino acid moieties can easily be recognised due to their characteristic fingerprints that were observed in the COSY spectrum of the un-coupled amino acid. The same spin systems observed for the amino acids are translated into the COSY spectr ...
... In the COSY spectrum of the dipeptide (Figure 6), the two amino acid moieties can easily be recognised due to their characteristic fingerprints that were observed in the COSY spectrum of the un-coupled amino acid. The same spin systems observed for the amino acids are translated into the COSY spectr ...
Optical spectroscopy and electronic structure of the face-centered icosahedral quasicrystals Zn- R
... high structural quality of the quasicrystals. The mass density of the QCs was measured by the Micrometrics AccuPyc 1330 setup. The valence electron concentrations, determined from the recorded values, are presented in Table I. The optical surfaces of single-grain QC samples were prepared by a ca ...
... high structural quality of the quasicrystals. The mass density of the QCs was measured by the Micrometrics AccuPyc 1330 setup. The valence electron concentrations, determined from the recorded values, are presented in Table I. The optical surfaces of single-grain QC samples were prepared by a ca ...
Multimode Interferometer for Guided Matter Waves
... is the case when the source is thermal, or for cold fermions, even below the Fermi temperature. The multimode interferometer is built by combining two Y-shaped beam splitters [4], capable of coherently splitting or recombining many incoming transverse modes, and arranging the interferometer geometry ...
... is the case when the source is thermal, or for cold fermions, even below the Fermi temperature. The multimode interferometer is built by combining two Y-shaped beam splitters [4], capable of coherently splitting or recombining many incoming transverse modes, and arranging the interferometer geometry ...
Journal of Non-Crystalline Solids 114 (1989) 813-815
... Where I is the size of the domains, and Pa is the fraction of a-Si. This equation is valid for c~-a~
... Where I is the size of the domains, and Pa is the fraction of a-Si. This equation is valid for c~-a~
K. S. Al Mugren, Y. El Sayed, H. Shoukry, A. El Taher
... compositions; 60P2O5 –30ZnO- 10CuO in mol% (sample A), 55P2O5 – 30ZnO- 15CuO in mol% (sample B) and 50P2O5 – 30ZnO- 20CuO in mol% (sample C) have been melted in alumina crucibles, the temperature was probably between1000 and1100 °C. Composites were cast in a steel mold at room temperature followed b ...
... compositions; 60P2O5 –30ZnO- 10CuO in mol% (sample A), 55P2O5 – 30ZnO- 15CuO in mol% (sample B) and 50P2O5 – 30ZnO- 20CuO in mol% (sample C) have been melted in alumina crucibles, the temperature was probably between1000 and1100 °C. Composites were cast in a steel mold at room temperature followed b ...
A negative permeability material at red light
... μ = n η . The values of n and η (or ε and μ ) of the equivalent homogenized layer of thickness δ are chosen to reproduce the complex values of far-field reflectance and transmittance due to a given film. Optical negative index metamaterials (NIMs), also known as left-handed materials, are artificial ...
... μ = n η . The values of n and η (or ε and μ ) of the equivalent homogenized layer of thickness δ are chosen to reproduce the complex values of far-field reflectance and transmittance due to a given film. Optical negative index metamaterials (NIMs), also known as left-handed materials, are artificial ...
Probing the Electronic Structure of Complex Systems by ARPES
... surface, and escape of the photoelectron into vacuum after transmission through the surface potential barrier. This is the most common approach, in particular when photoemission spectroscopy is used as a tool to map the electronic band structure of solids. However, from the quantummechanical point o ...
... surface, and escape of the photoelectron into vacuum after transmission through the surface potential barrier. This is the most common approach, in particular when photoemission spectroscopy is used as a tool to map the electronic band structure of solids. However, from the quantummechanical point o ...
Energetics of the primary electron transfer reaction revealed by
... The solution of the molecular structure of photosynthetic reaction centers [ l-31 provides detailed information on the organization of this pigmentprotein complex, in which a series of light-induced electron transfer steps initiates bacterial photosynthesis. The dynamics of this process has been inv ...
... The solution of the molecular structure of photosynthetic reaction centers [ l-31 provides detailed information on the organization of this pigmentprotein complex, in which a series of light-induced electron transfer steps initiates bacterial photosynthesis. The dynamics of this process has been inv ...
- Natural Sciences Publishing
... Figure 4: The relation between ln(α) as a function of photon energy of GexSb40-xSe60 thin films. Thus plotting of ln(α ) vs, hυ, Fig.4 should give straight line with the inverse of its slope equals Et . The calculated values of Et for different film composition are given in Table.1. It is observed t ...
... Figure 4: The relation between ln(α) as a function of photon energy of GexSb40-xSe60 thin films. Thus plotting of ln(α ) vs, hυ, Fig.4 should give straight line with the inverse of its slope equals Et . The calculated values of Et for different film composition are given in Table.1. It is observed t ...
Atomic Spectroscopy
... transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in the process. Emission lines are produced when these transitions from higher energy states to lower energy states oc ...
... transitions from the ground state to a higher energy level. Atoms in the excited state are generally unstable and will rapidly revert to the ground state, losing the acquired energy in the process. Emission lines are produced when these transitions from higher energy states to lower energy states oc ...
Probing dipole-forbidden autoionizing states by isolated attosecond
... amount of data has been obtained and recorded by synchrotron radiations up to the x-ray regimes. Due to the limited brilliance of the light sources, or the limited intensity of the fields, normally only single-photon processes are considered in synchrotron measurements. Although it can be very preci ...
... amount of data has been obtained and recorded by synchrotron radiations up to the x-ray regimes. Due to the limited brilliance of the light sources, or the limited intensity of the fields, normally only single-photon processes are considered in synchrotron measurements. Although it can be very preci ...
A study of the structure and bonding of small aluminum oxide
... The details of the experimental apparatus have been published elsewhere and will only be given briefly.34 The apparatus is composed of a laser vaporization source, a modified Wiley–McLaren time-of-flight ~TOF! mass spectrometer65 and an improved magnetic-bottle TOF electron analyzer.24,66 A pulsed l ...
... The details of the experimental apparatus have been published elsewhere and will only be given briefly.34 The apparatus is composed of a laser vaporization source, a modified Wiley–McLaren time-of-flight ~TOF! mass spectrometer65 and an improved magnetic-bottle TOF electron analyzer.24,66 A pulsed l ...
Microscopic quantum coherence in a photosynthetic-light
... distribution of energies from the inhomogeneous (static) distribution. With appropriate choices of relative delays of the excitation pulses, it is possible to measure only those components of the signal for which the phase evolution during t and t occurs with opposite signs, resulting in cancellatio ...
... distribution of energies from the inhomogeneous (static) distribution. With appropriate choices of relative delays of the excitation pulses, it is possible to measure only those components of the signal for which the phase evolution during t and t occurs with opposite signs, resulting in cancellatio ...
Microwave Spectra, Geometries, and Hyperfine Constants of OCAgX
... extensive search, several lines were identified near 10530 MHz, approximately 250 MHz lower than the position predicted for J ) 4-3 of the described species. The lines were observed readily, requiring only 5 averaging cycles to be distinguished from the background noise. Four lines were found, howev ...
... extensive search, several lines were identified near 10530 MHz, approximately 250 MHz lower than the position predicted for J ) 4-3 of the described species. The lines were observed readily, requiring only 5 averaging cycles to be distinguished from the background noise. Four lines were found, howev ...
Synthesis, Crystal Structure and Magnetic Properties of
... in the ideal fluorite structure (AX2 type), leading to deviations from the ideal bixbyite composition A2 X3 . Unfortunately, it has not been possible to refine the occupation of the 16c (1/8, 1/8, 1/8) position (empty in ideal A2 X3 bixbyite structures) by ‘additional’ anions using X-ray powder meth ...
... in the ideal fluorite structure (AX2 type), leading to deviations from the ideal bixbyite composition A2 X3 . Unfortunately, it has not been possible to refine the occupation of the 16c (1/8, 1/8, 1/8) position (empty in ideal A2 X3 bixbyite structures) by ‘additional’ anions using X-ray powder meth ...
Extraction of thermal and electromagnetic properties in 45Ti
... The set of these unfolded γ -ray spectra, which are organized into a (E, Eγ ) matrix, forms the basis for the extraction of the first-generation γ -ray spectra. Here, the energy distribution of the first (primary) emitted γ -rays in the γ -cascades at various excitation energies is isolated by an it ...
... The set of these unfolded γ -ray spectra, which are organized into a (E, Eγ ) matrix, forms the basis for the extraction of the first-generation γ -ray spectra. Here, the energy distribution of the first (primary) emitted γ -rays in the γ -cascades at various excitation energies is isolated by an it ...
Hydration Number of Sodium Ions Determined by Sodium Magnetic
... and the titration is followed by the chemical shift of the sodium magnetic resonance, or some other suitable probe. From the titration curve, we find a value of 3-4 for the hydration number of sodium and also obtain the equilibrium constant for the hydration. Previously reported hydration number^^-^ ...
... and the titration is followed by the chemical shift of the sodium magnetic resonance, or some other suitable probe. From the titration curve, we find a value of 3-4 for the hydration number of sodium and also obtain the equilibrium constant for the hydration. Previously reported hydration number^^-^ ...
RSC ChemComm Template (PC) - Royal Society of Chemistry
... 705 nm and 825 nm, respectively. Figure S1 compares the fluorescence spectrum of 3 with solutions of the two references – 4, which exhibits the same absorption cross-section at the excitation wavelength than that of 3 (i.e., corrected for the different C60 / C59N absorption partition), and 5, whose ...
... 705 nm and 825 nm, respectively. Figure S1 compares the fluorescence spectrum of 3 with solutions of the two references – 4, which exhibits the same absorption cross-section at the excitation wavelength than that of 3 (i.e., corrected for the different C60 / C59N absorption partition), and 5, whose ...
Landau levels in graphene
... QED effects that cannot be tested in particle physics, but could be in graphene are also gedanken Klein paradox[4] (process of perfect tunneling of relativistic electrons through arbitrary high and wide barriers) and Zitterbewegung[5] (jittery movement of a relativistic electron due to interference ...
... QED effects that cannot be tested in particle physics, but could be in graphene are also gedanken Klein paradox[4] (process of perfect tunneling of relativistic electrons through arbitrary high and wide barriers) and Zitterbewegung[5] (jittery movement of a relativistic electron due to interference ...
Few-Particle Effects in Semiconductor Quantum Dots: Spectrum Calculations on
... [5]. Together with effective mass approximation of semiconductor materials (section 2.1.1) and configuration interaction (CI) (chapter 2.2.2), so called few-carrier system can be solved in reasonable time frame without further approximation [6, 7]. Many works have devoted to the spectra prediction w ...
... [5]. Together with effective mass approximation of semiconductor materials (section 2.1.1) and configuration interaction (CI) (chapter 2.2.2), so called few-carrier system can be solved in reasonable time frame without further approximation [6, 7]. Many works have devoted to the spectra prediction w ...
Jahn−Teller Distortion in the Phosphorescent Excited State of Three
... because of spin-orbit coupling.2 Other complexes have been suggested as selective chemical sensors for volatile organics,3 oxygen,4 and specific ions5 because the phosphorescence is reversibly enhanced or quenched on interaction with these species.6 An understanding of the nature of the luminescent ...
... because of spin-orbit coupling.2 Other complexes have been suggested as selective chemical sensors for volatile organics,3 oxygen,4 and specific ions5 because the phosphorescence is reversibly enhanced or quenched on interaction with these species.6 An understanding of the nature of the luminescent ...
Single-photon multiple ionization processes studied by electron coincidence spectroscopy Per Linusson
... methods (see e.g. Ref. [10] and references therein). In some cases the frozen orbital approximation was in fact completely unsatisfactory [11; 12]. In this context the main topic of this thesis can be understood, which is single-photon multiple ionization. Excluding the well-known Auger effect the e ...
... methods (see e.g. Ref. [10] and references therein). In some cases the frozen orbital approximation was in fact completely unsatisfactory [11; 12]. In this context the main topic of this thesis can be understood, which is single-photon multiple ionization. Excluding the well-known Auger effect the e ...
Mössbauer spectroscopy
Mössbauer spectroscopy is a spectroscopic technique based on the Mössbauer effect. This effect, discovered by Rudolf Mössbauer in 1957, consists in the recoil-free, resonant absorption and emission of gamma rays in solids.Like NMR spectroscopy, Mössbauer spectroscopy probes tiny changes in the energy levels of an atomic nucleus in response to its environment. Typically, three types of nuclear interactions may be observed: an isomeric shift, also known as a chemical shift; quadrupole splitting; and magnetic or hyperfine splitting, also known as the Zeeman effect. Due to the high energy and extremely narrow line widths of gamma rays, Mössbauer spectroscopy is a very sensitive technique in terms of energy (and hence frequency) resolution, capable of detecting change in just a few parts per 1011.