Department of Physics and Astronomy Magnetic and Magneto
... a cubic structure with 80 atoms per unit cell. It has a wide band-gap energy (3.75 eV), large carrier density when doped with Sn and is transparent in the visible region. All these properties make In2O3 well-suited for the purposes of device applications [2123]. Multiferroic oxides are another possi ...
... a cubic structure with 80 atoms per unit cell. It has a wide band-gap energy (3.75 eV), large carrier density when doped with Sn and is transparent in the visible region. All these properties make In2O3 well-suited for the purposes of device applications [2123]. Multiferroic oxides are another possi ...
Freezing and Melting Transitions under Mesoscalic Confinement
... nucleus has to be formed first. The highest temperature Tn, at which a spherically shaped crystal seed can be nucleated, can be estimated from the condition that, at this temperature, the channel is able to accommodate a nucleus of the critical size.1 The nucleation process is effective at sufficiently ...
... nucleus has to be formed first. The highest temperature Tn, at which a spherically shaped crystal seed can be nucleated, can be estimated from the condition that, at this temperature, the channel is able to accommodate a nucleus of the critical size.1 The nucleation process is effective at sufficiently ...
Charge, spin and orbital order in the candidate multiferroic material
... A rapid evolution of digitally stored information was achieved in the last half of the 20th century. This process started during the Second World War with the development of early computers, using vacuum tubes for calculations, punched tape for external storage and relays for internal data storage. ...
... A rapid evolution of digitally stored information was achieved in the last half of the 20th century. This process started during the Second World War with the development of early computers, using vacuum tubes for calculations, punched tape for external storage and relays for internal data storage. ...
Supporting Information
... the host Zn-Cr-LDH material are investigated with XANES spectroscopy at Zn K-edge and Cr K-edge. The Zn K-edge XANES spectra of the as-prepared ZCW and ZCV nanohybrids and their calcined derivatives are plotted in Fig. S2a, as compared with those of the pristine Zn-CrLDH and bulk ZnO. The as-prepare ...
... the host Zn-Cr-LDH material are investigated with XANES spectroscopy at Zn K-edge and Cr K-edge. The Zn K-edge XANES spectra of the as-prepared ZCW and ZCV nanohybrids and their calcined derivatives are plotted in Fig. S2a, as compared with those of the pristine Zn-CrLDH and bulk ZnO. The as-prepare ...
Molecular Bistability in Transition Metal Complexes: Electric
... compound marks the beginning of a very deep research in this field. Actually, this effect is found essentially for iron(II), iron(III) and cobalt(II) complexes, but also occasionally in complexes of nickel(II), cobalt(III) and manganese(III). However, the majority of known spin crossover complexes t ...
... compound marks the beginning of a very deep research in this field. Actually, this effect is found essentially for iron(II), iron(III) and cobalt(II) complexes, but also occasionally in complexes of nickel(II), cobalt(III) and manganese(III). However, the majority of known spin crossover complexes t ...
The birth of topological insulators
... Certain insulators have exotic metallic states on their surfaces. These states are formed by topological effects that also render the electrons travelling on such surfaces insensitive to scattering by impurities. Such topological insulators may provide new routes to generating novel phases and parti ...
... Certain insulators have exotic metallic states on their surfaces. These states are formed by topological effects that also render the electrons travelling on such surfaces insensitive to scattering by impurities. Such topological insulators may provide new routes to generating novel phases and parti ...
The birth of topological insulators
... Certain insulators have exotic metallic states on their surfaces. These states are formed by topological effects that also render the electrons travelling on such surfaces insensitive to scattering by impurities. Such topological insulators may provide new routes to generating novel phases and parti ...
... Certain insulators have exotic metallic states on their surfaces. These states are formed by topological effects that also render the electrons travelling on such surfaces insensitive to scattering by impurities. Such topological insulators may provide new routes to generating novel phases and parti ...
Quantum Theory of Condensed Matter (260 Pages)
... I am indeed honored to have been given the opportunity to lead this 24th Solvay Conference on Physics. It is true, as David suggested, that I was rather hesitant at first to take on this responsibility. The prospect of trying to choose fifty participants to represent a field as broad as condensed ma ...
... I am indeed honored to have been given the opportunity to lead this 24th Solvay Conference on Physics. It is true, as David suggested, that I was rather hesitant at first to take on this responsibility. The prospect of trying to choose fifty participants to represent a field as broad as condensed ma ...
- White Rose Research Online
... true in copper(II) chemistry, where genuine, experimentally verified Jahn-Teller compressions are almost unheard of.12 This reflects a small additional stabilisation of 3dz2 by mixing with the metal 4s orbital, which has the same a1g symmetry as 3dz2 in the Oh and D4h point groups. Jahn-Teller compr ...
... true in copper(II) chemistry, where genuine, experimentally verified Jahn-Teller compressions are almost unheard of.12 This reflects a small additional stabilisation of 3dz2 by mixing with the metal 4s orbital, which has the same a1g symmetry as 3dz2 in the Oh and D4h point groups. Jahn-Teller compr ...
Magnetic Properties of 3d and 4f Ferromagnets Studied by X
... In the third part of this thesis, the focus is turned to XMCD studies of the rare earth elements Gd, Tb, and Dy. They are a good example of materials in which the magnetic moments of different shells and their interactions play an important role. The largest part of the magnetization is carried by t ...
... In the third part of this thesis, the focus is turned to XMCD studies of the rare earth elements Gd, Tb, and Dy. They are a good example of materials in which the magnetic moments of different shells and their interactions play an important role. The largest part of the magnetization is carried by t ...
Propriétés structurales et dynamiques des sulfates d`alcalins
... I.3 Why does double alkali sulfate family deserve attention? .................................. 11 1.4 Previous studies of double alkali sulfates: are there unresolved questions? ...... 14 I.5 Synopsis .................................................................................................. ...
... I.3 Why does double alkali sulfate family deserve attention? .................................. 11 1.4 Previous studies of double alkali sulfates: are there unresolved questions? ...... 14 I.5 Synopsis .................................................................................................. ...
Electron spin resonance studies of pentavalent and trivalent chromium
... This phenomenon will lead to line broadening in the electron spin resonance as soon as l1E is no longer negligible with respect to hv, i.e. as soon as 1/'t' becomes so with respect to v. As v is of the order of 1010 c/s, sharp resonances will be observed only for 't' > 10-8 s. It has long been known ...
... This phenomenon will lead to line broadening in the electron spin resonance as soon as l1E is no longer negligible with respect to hv, i.e. as soon as 1/'t' becomes so with respect to v. As v is of the order of 1010 c/s, sharp resonances will be observed only for 't' > 10-8 s. It has long been known ...
local copy
... tices, both modes are unstable simultaneously, so that the Eu mode is always less stable. Therefore, one can expect that the symmetry of the polar phase, most likely, will be lower than tetragonal. In phonon spectra of three superlattices, the appearance of three unstable modes with symmetry Eg and ...
... tices, both modes are unstable simultaneously, so that the Eu mode is always less stable. Therefore, one can expect that the symmetry of the polar phase, most likely, will be lower than tetragonal. In phonon spectra of three superlattices, the appearance of three unstable modes with symmetry Eg and ...
physics in canada la physique au canada
... Before small-angle neutron scattering (SANS), studies of polymer structure were, for the most part, limited to light and smallangle x-ray scattering techniques. The unique role of SANS in the case of hydrogenous materials lies in the difference in the coherent scattering length between hydrogen (bH ...
... Before small-angle neutron scattering (SANS), studies of polymer structure were, for the most part, limited to light and smallangle x-ray scattering techniques. The unique role of SANS in the case of hydrogenous materials lies in the difference in the coherent scattering length between hydrogen (bH ...
far from the Fermi liquid regime
... Soon after the discovery of high temperature superconductivity in the cuprates it was realized that the optimally doped compounds showed clear deviations from Fermi liquid behaviour. This was not the first time that a real system seemed to violate Landau’s paradigm. The heavy fermion superconductor ...
... Soon after the discovery of high temperature superconductivity in the cuprates it was realized that the optimally doped compounds showed clear deviations from Fermi liquid behaviour. This was not the first time that a real system seemed to violate Landau’s paradigm. The heavy fermion superconductor ...
CadmiumFurandicarboxylate Coordination Polymers Prepared with
... that MOFs with large pores are of particular interest due to their many applications from catalysis to gas adsorption. It is well reported that bifunctional dicarboxylates served to bridge various metal ions producing many highly porous and catalytically active frameworks.10 Yaghi’s group has develo ...
... that MOFs with large pores are of particular interest due to their many applications from catalysis to gas adsorption. It is well reported that bifunctional dicarboxylates served to bridge various metal ions producing many highly porous and catalytically active frameworks.10 Yaghi’s group has develo ...
colossal magnetoresistance of systems with Magnetic and electric
... −100, 000% for thin films of calcium doped manganese oxide near 77K with applied magnetic fields of 6T . They also remarked that their results had a very strong dependence on the method used to grow the films. Previously, magnetoresistance had been observed in other manganese oxide perovskites [4, 5 ...
... −100, 000% for thin films of calcium doped manganese oxide near 77K with applied magnetic fields of 6T . They also remarked that their results had a very strong dependence on the method used to grow the films. Previously, magnetoresistance had been observed in other manganese oxide perovskites [4, 5 ...
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.