Direct observation of the current distribution in thin superconducting
... Biot-Savart law. Such direct measurement of current distributions have already been reported in studies of superconductors. Xing et al.15 used a scanning Hall probe with a 25 mm resolution to obtain field maps a distance 0.25 mm above a square Y-Ba-Cu-O thin film, and by inversion found current flow ...
... Biot-Savart law. Such direct measurement of current distributions have already been reported in studies of superconductors. Xing et al.15 used a scanning Hall probe with a 25 mm resolution to obtain field maps a distance 0.25 mm above a square Y-Ba-Cu-O thin film, and by inversion found current flow ...
Chapter 2 power point File
... Scales are used by scientists to measure samples and to find out specific information A meter scale measures things that are large (length of a car), a centimeter measures things that are small (the length of a book), and a millimeter measures things that are microscopic or really small (like the th ...
... Scales are used by scientists to measure samples and to find out specific information A meter scale measures things that are large (length of a car), a centimeter measures things that are small (the length of a book), and a millimeter measures things that are microscopic or really small (like the th ...
Magnetic Base Station Deceptions, a magnetovariational analysis
... Reliability of high resolution airborne and shipborne magnetic surveys depends on accurate removal of temporal variations from the recorded total magnetic field intensity data. At mid latitudes, one or a few base stations are typically located within or near the survey area and are used to monitor a ...
... Reliability of high resolution airborne and shipborne magnetic surveys depends on accurate removal of temporal variations from the recorded total magnetic field intensity data. At mid latitudes, one or a few base stations are typically located within or near the survey area and are used to monitor a ...
Electric and Magnetic Fields
... ignals from galaxies, satellites, and television stations are electromagnetic waves. The properties of electric and magnetic fields were studied over most of the last century. In 1820 Oersted did his work on magnetic fields, and eleven years later Faraday discovered induction. In that year James Cle ...
... ignals from galaxies, satellites, and television stations are electromagnetic waves. The properties of electric and magnetic fields were studied over most of the last century. In 1820 Oersted did his work on magnetic fields, and eleven years later Faraday discovered induction. In that year James Cle ...
Chapter 20: Magnetic field and forces What will we learn in this
... The forces that two straight parallel conductors exert on each other form the basis for the official SI definition of the ampere: Definition of 1 ampere: One ampere is that unvarying current which, if present in each of two parallel conductors of infinite length and 1 meter apart in vacuum causes a ...
... The forces that two straight parallel conductors exert on each other form the basis for the official SI definition of the ampere: Definition of 1 ampere: One ampere is that unvarying current which, if present in each of two parallel conductors of infinite length and 1 meter apart in vacuum causes a ...
Short Questions and Answers
... What is the concept of wave-particle duality? Ans: On the basis of existing experimental facts like interference, diffraction and polarization it is clear that EM radiation possess wave nature. On the other hand there are experimental evidences like photoelectric effect, emission and absorption spec ...
... What is the concept of wave-particle duality? Ans: On the basis of existing experimental facts like interference, diffraction and polarization it is clear that EM radiation possess wave nature. On the other hand there are experimental evidences like photoelectric effect, emission and absorption spec ...
Natural Explanation for the Anthropic Coincidences
... billions of years were needed for stars to form and assemble the nuclei of these elements out of neutrons and protons. When the more massive stars expended their hydrogen fuel, they exploded as supernovae, spraying the manufactured elements into space. Once in space, the material cooled and accumula ...
... billions of years were needed for stars to form and assemble the nuclei of these elements out of neutrons and protons. When the more massive stars expended their hydrogen fuel, they exploded as supernovae, spraying the manufactured elements into space. Once in space, the material cooled and accumula ...
Chapter 2 Basic definitions of geomagnetism
... A very strong local anomaly has been found near Kursk, 400 km south of Moscow. It is 250 km long, and composed of two parallel strips running from NE to SW. The horizontal intensity varies from 20 000 to 80 000 nT and the vertical intensity from 40 000 to 180 000 nT. The declination varies from 100o ...
... A very strong local anomaly has been found near Kursk, 400 km south of Moscow. It is 250 km long, and composed of two parallel strips running from NE to SW. The horizontal intensity varies from 20 000 to 80 000 nT and the vertical intensity from 40 000 to 180 000 nT. The declination varies from 100o ...
Magnetic field contribution to the Lorentz model
... The results presented here show the precise manner in which the magnetic field influences the atomic polarizability in the Lorentz model of resonance polarization. Inclusion of the magnetic field in the Lorentz force relation results in a microscopic polarization density that contains both perpendic ...
... The results presented here show the precise manner in which the magnetic field influences the atomic polarizability in the Lorentz model of resonance polarization. Inclusion of the magnetic field in the Lorentz force relation results in a microscopic polarization density that contains both perpendic ...
A new Definition of Graviton (PDF Available)
... To date, there is no way to explain the process that describes how particles as photon absorb gravitons. According to the results of our years-long research we can definitely say that the best way for explain this process is using color charge concept from photon properties. This model might be call ...
... To date, there is no way to explain the process that describes how particles as photon absorb gravitons. According to the results of our years-long research we can definitely say that the best way for explain this process is using color charge concept from photon properties. This model might be call ...
Abstract - Rutgers Physics
... and writes the measured magnetic field, step number, measured magnet current, desired magnet current, steps per inch, wait time, and step size into a text file (BfieldMesaurements.txt). The program also allows for the specification of the “Step Delay” which is related to the stepper motor speed. We ...
... and writes the measured magnetic field, step number, measured magnet current, desired magnet current, steps per inch, wait time, and step size into a text file (BfieldMesaurements.txt). The program also allows for the specification of the “Step Delay” which is related to the stepper motor speed. We ...
Creating arbitrary quantum vibrational states in a carbon nanotube
... The peculiar feature of quantum states is that they can be in a superposition of their basis states. Preparation, manipulation, and measurement of Fock states, which are quantum states with fixed numbers of quanta, and their superpositions are especially important for quantum computation with trappe ...
... The peculiar feature of quantum states is that they can be in a superposition of their basis states. Preparation, manipulation, and measurement of Fock states, which are quantum states with fixed numbers of quanta, and their superpositions are especially important for quantum computation with trappe ...
Chapter 27
... Looking forward at … • the properties of magnets, and how magnets interact with each other. • how to analyze magnetic forces on current-carrying conductors and moving charged particles. • how magnetic field lines are different from electric field lines. • some practical applications of magnetic fiel ...
... Looking forward at … • the properties of magnets, and how magnets interact with each other. • how to analyze magnetic forces on current-carrying conductors and moving charged particles. • how magnetic field lines are different from electric field lines. • some practical applications of magnetic fiel ...
Terahertz modulation of the Faraday effect by laser pulses via the
... measured the Faraday rotation of the transmitted probe for different magnetic fields at a temperature of T =1.7 K (Fig. 3 (a)). The quench was always observed at the time delay of ∆τ ≈13 ps independently of magnetic field. The aforementioned oscillations dominated the signal. Their frequency varies fro ...
... measured the Faraday rotation of the transmitted probe for different magnetic fields at a temperature of T =1.7 K (Fig. 3 (a)). The quench was always observed at the time delay of ∆τ ≈13 ps independently of magnetic field. The aforementioned oscillations dominated the signal. Their frequency varies fro ...
Analysis of Some Reasons of Anomalous Electron Transportation in
... electric field of monotonous character for the following reasons. Increasing of electron drift velocity in the area of heterogeneity of ion concentration of the extent ≈10-2 m (Rgyro≈10-3 m) because of superposition arisen azimuthal component and before existed longitudinal component of an electric ...
... electric field of monotonous character for the following reasons. Increasing of electron drift velocity in the area of heterogeneity of ion concentration of the extent ≈10-2 m (Rgyro≈10-3 m) because of superposition arisen azimuthal component and before existed longitudinal component of an electric ...
Electromagnetism
... it can lose its magnetism immediately the current is switched off in the solenoid. If a hard iron, such as steel, is used it will become a permanent magnet when magnetised by the solenoid. This means that when the current in the solenoid is switched off the core keeps its magnetism ...
... it can lose its magnetism immediately the current is switched off in the solenoid. If a hard iron, such as steel, is used it will become a permanent magnet when magnetised by the solenoid. This means that when the current in the solenoid is switched off the core keeps its magnetism ...
Quantization of the Hall conductivity of a two
... Refs. 10 and 26 (see also Refs. 14 and 27). A distinctive feature of the present investigation is the unification of the simple physical picture provided by the drift approximation with linear response theory, which allows us to obtain a new expression for the conductivity. Although the actual contr ...
... Refs. 10 and 26 (see also Refs. 14 and 27). A distinctive feature of the present investigation is the unification of the simple physical picture provided by the drift approximation with linear response theory, which allows us to obtain a new expression for the conductivity. Although the actual contr ...
Condensed matter physics
Condensed matter physics is a branch of physics that deals with the physical properties of condensed phases of matter. Condensed matter physicists seek to understand the behavior of these phases by using physical laws. In particular, these include the laws of quantum mechanics, electromagnetism and statistical mechanics.The most familiar condensed phases are solids and liquids, while more exotic condensed phases include the superconducting phase exhibited by certain materials at low temperature, the ferromagnetic and antiferromagnetic phases of spins on atomic lattices, and the Bose–Einstein condensate found in cold atomic systems. The study of condensed matter physics involves measuring various material properties via experimental probes along with using techniques of theoretical physics to develop mathematical models that help in understanding physical behavior.The diversity of systems and phenomena available for study makes condensed matter physics the most active field of contemporary physics: one third of all American physicists identify themselves as condensed matter physicists, and the Division of Condensed Matter Physics is the largest division at the American Physical Society. The field overlaps with chemistry, materials science, and nanotechnology, and relates closely to atomic physics and biophysics. Theoretical condensed matter physics shares important concepts and techniques with theoretical particle and nuclear physics.A variety of topics in physics such as crystallography, metallurgy, elasticity, magnetism, etc., were treated as distinct areas, until the 1940s when they were grouped together as solid state physics. Around the 1960s, the study of physical properties of liquids was added to this list, forming the basis for the new, related specialty of condensed matter physics. According to physicist Phil Anderson, the term was coined by him and Volker Heine when they changed the name of their group at the Cavendish Laboratories, Cambridge from ""Solid state theory"" to ""Theory of Condensed Matter"" in 1967, as they felt it did not exclude their interests in the study of liquids, nuclear matter and so on. Although Anderson and Heine helped popularize the name ""condensed matter"", it had been present in Europe for some years, most prominently in the form of a journal published in English, French, and German by Springer-Verlag titled Physics of Condensed Matter, which was launched in 1963. The funding environment and Cold War politics of the 1960s and 1970s were also factors that lead some physicists to prefer the name ""condensed matter physics"", which emphasized the commonality of scientific problems encountered by physicists working on solids, liquids, plasmas, and other complex matter, over ""solid state physics"", which was often associated with the industrial applications of metals and semiconductors. The Bell Telephone Laboratories was one of the first institutes to conduct a research program in condensed matter physics.References to ""condensed"" state can be traced to earlier sources. For example, in the introduction to his 1947 ""Kinetic theory of liquids"" book, Yakov Frenkel proposed that ""The kinetic theory of liquids must accordingly be developed as a generalization and extension of the kinetic theory of solid bodies"". As a matter of fact, it would be more correct to unify them under the title of ""condensed bodies"".