Magnetic-Instability-Induced Giant Magnetoelectric Coupling
... induced by hole/electron doping, temperature, magnetic field, pressure, and/or lattice strain. For the first time we here show that spin-state transitions can also be induced by an electric field in the case of magnetoelectric materials that display magnetic instabilities. Materials with pure ionic ...
... induced by hole/electron doping, temperature, magnetic field, pressure, and/or lattice strain. For the first time we here show that spin-state transitions can also be induced by an electric field in the case of magnetoelectric materials that display magnetic instabilities. Materials with pure ionic ...
Photodoping Effects in High Critical Temperature Superconducting
... tors, the visible light can break Cooper pairs in YBa2 Cu3O7 thin films on a short illumination subnanosecond time scale [14–16], and for small photon dose, smaller than 1016 photon/cm2 [17]. At a longer millisecond to hours illumination time scale with a typical 1019 –1023 photon/cm2 photon dose be ...
... tors, the visible light can break Cooper pairs in YBa2 Cu3O7 thin films on a short illumination subnanosecond time scale [14–16], and for small photon dose, smaller than 1016 photon/cm2 [17]. At a longer millisecond to hours illumination time scale with a typical 1019 –1023 photon/cm2 photon dose be ...
Ab initio Electronic Structure Calculations and
... structure. However, recently measured Ni K- and L2,3-edge XAS spectra from Ni3In are not in good agreement with the corresponding theoretical XAS spectra calculated assuming the L1 2 structure. Further, the Ni L2,3-edge XAS spectrum calculated using the D0 19 structure resulted in worse agreement wi ...
... structure. However, recently measured Ni K- and L2,3-edge XAS spectra from Ni3In are not in good agreement with the corresponding theoretical XAS spectra calculated assuming the L1 2 structure. Further, the Ni L2,3-edge XAS spectrum calculated using the D0 19 structure resulted in worse agreement wi ...
Low-Temperature Materials Properties
... of refrigeration, heat transfer, or storage of low temperature helium. In addition as seen in subsequent chapters, many of the properties of helium are understood in terms of physical models that were primarily developed to treat the properties of different materials at low temperatures. The study o ...
... of refrigeration, heat transfer, or storage of low temperature helium. In addition as seen in subsequent chapters, many of the properties of helium are understood in terms of physical models that were primarily developed to treat the properties of different materials at low temperatures. The study o ...
Cross Section of 16 Mbit DRAM and 64 Mbit DRAM
... Parallel to the word lines are Ti/TiN/AlSiCu lines. They contact the wordlines every once in a while to decrease the ohmic resistance. The consist of a layer sequence: Ti, TiN, and Al doped with about 0,5% of Si and Cu. On top of this first metal layer is another one running across the picture. The ...
... Parallel to the word lines are Ti/TiN/AlSiCu lines. They contact the wordlines every once in a while to decrease the ohmic resistance. The consist of a layer sequence: Ti, TiN, and Al doped with about 0,5% of Si and Cu. On top of this first metal layer is another one running across the picture. The ...
2D epitaxial superconductor-semiconductor
... Progress in the emergent field of topological superconductivity relies on synthesis of new material combinations, combining superconductivity, low density, and spin-orbit coupling (SOC). For example, theory [1–4] indicates that the interface between a one-dimensional (1D) semiconductor (Sm) with str ...
... Progress in the emergent field of topological superconductivity relies on synthesis of new material combinations, combining superconductivity, low density, and spin-orbit coupling (SOC). For example, theory [1–4] indicates that the interface between a one-dimensional (1D) semiconductor (Sm) with str ...
Spinless Fermions with Repulsive Interactions
... In the last twenty years various experiments have been performed and theoretical advancement have been made; now we believe the physics of high-temperature superconductivity is captured by doping a mott insulator, which in the case of cuprates can be modeled by electrons hopping on a square lattice ...
... In the last twenty years various experiments have been performed and theoretical advancement have been made; now we believe the physics of high-temperature superconductivity is captured by doping a mott insulator, which in the case of cuprates can be modeled by electrons hopping on a square lattice ...
Radioactive isotopes in solid state physics
... superconductors triggered an intense experimental and theoretical research program for these systems. Among them, HgBa2Can- I CUn02n+2+5 represents the family of high temperature superconductors with the highest Tc• An exited nuclear state ofthe isotope 199Hg can be used to characterize on an atomic ...
... superconductors triggered an intense experimental and theoretical research program for these systems. Among them, HgBa2Can- I CUn02n+2+5 represents the family of high temperature superconductors with the highest Tc• An exited nuclear state ofthe isotope 199Hg can be used to characterize on an atomic ...
arXiv:1705.00333v1 [cond-mat.supr
... to a power law 1/r, thus quasi-long-rage order and almost coherent state takes place. It should be noted the scenario of preformed pairs [2, 6, 7]: superconductivity is destroyed due to phase fluctuations at temperature T = Tc but Cooper pairs survive up to temperature T ∗ called the pseudogap tempe ...
... to a power law 1/r, thus quasi-long-rage order and almost coherent state takes place. It should be noted the scenario of preformed pairs [2, 6, 7]: superconductivity is destroyed due to phase fluctuations at temperature T = Tc but Cooper pairs survive up to temperature T ∗ called the pseudogap tempe ...
Magnets and superconductors
... of Università dell’Aquila university, the system uses super magnets that are distributed along the guide way and superconductors that are cooled with liquid nitrogen on board the vehicle. And this brings us to the second point, What is a superconductor? And how is it used in the UAQ4 train? Supercon ...
... of Università dell’Aquila university, the system uses super magnets that are distributed along the guide way and superconductors that are cooled with liquid nitrogen on board the vehicle. And this brings us to the second point, What is a superconductor? And how is it used in the UAQ4 train? Supercon ...
pdf slides
... image of the slice taken with an electron microprobe. The second image shows the magnetized regions in the slice, with red areas showing one direction of magnetization and blue the opposite direction. ...
... image of the slice taken with an electron microprobe. The second image shows the magnetized regions in the slice, with red areas showing one direction of magnetization and blue the opposite direction. ...
Nobel Lecture - APS Link Manager
... effects 共as applied primarily to BaTiO3兲 considered them 共Ginzburg, 1945兲 on the basis of the Landau theory of phase transitions, and this approach subsequently made progress 关see article 5 in Ginzburg 共2003兲兴.5 The ⌿ theory of superconductivity 共Ginzburg and Landau, 1950兲 is, if you like, an applic ...
... effects 共as applied primarily to BaTiO3兲 considered them 共Ginzburg, 1945兲 on the basis of the Landau theory of phase transitions, and this approach subsequently made progress 关see article 5 in Ginzburg 共2003兲兴.5 The ⌿ theory of superconductivity 共Ginzburg and Landau, 1950兲 is, if you like, an applic ...
Gas and moisture barrier on bio-based packaging materials
... polymer coated paperboards was studied [3]. For SiO2 depositions a new precursor, bis(diethylamido) silane, was used. Al2O3 and SiO2 layers were then successfully deposited at low temperature on these fiber-based substrates. The positive effect of the corona pre-treatment of the polymer coated board ...
... polymer coated paperboards was studied [3]. For SiO2 depositions a new precursor, bis(diethylamido) silane, was used. Al2O3 and SiO2 layers were then successfully deposited at low temperature on these fiber-based substrates. The positive effect of the corona pre-treatment of the polymer coated board ...
Solid State Physics (I)
... overlapping between the replica. • Primitive unit cell: unit cell with the smallest volume • Unit cell can form from fundamental vectors, but it can also be constructed by other methods (e. g. Wigner-Seitz primitive cell). • As long as the fundamental vectors are fixed, all the unit cells have the s ...
... overlapping between the replica. • Primitive unit cell: unit cell with the smallest volume • Unit cell can form from fundamental vectors, but it can also be constructed by other methods (e. g. Wigner-Seitz primitive cell). • As long as the fundamental vectors are fixed, all the unit cells have the s ...
An essay on condensed matter physics in the twentieth century
... Each electron was described by a plane wave w q (r) [exp(iqr) and an up- or down-spin function x s ( s 561). Coupled with the Pauli exclusion principle ...
... Each electron was described by a plane wave w q (r) [exp(iqr) and an up- or down-spin function x s ( s 561). Coupled with the Pauli exclusion principle ...
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.