[PDF] Top 20 Magnetic and structural transitions in the iron chalcogenide high Tc superconductor: K0 8Fe1 76Se2 00

... Rb and K/Tl) are tilted by 4045 away from the c-axis. A conclusion arrived at by using powders and assuming that V zz points along the c-axis. However, the low point symme- try of the 16i site (1) allows V zz to make an ... See full document

... in high magnetic fi ...the iron pnictide superconductors, where the nematic state is directly observable on the Fermi surface, 14 and suggests that the physics underlying both the superconductivity ... See full document

... of iron-based superconductors, which shows the doping dependence of magnetic, structural, and superconduct- ing ...of high-quality single crystals, which enable systematic studies using ... See full document

... Oxygen contents are well known to be charge reservoir in superconductor. Oxygen content reduction lowers the number of oxygen atom in Cu-O chains in the unit cell. The average oxygen content is found to be ≈ 6.85 ... See full document

... of magnetic free energies with temperature in bcc and fcc iron and thus drive the α (bcc) - γ (fcc) - δ (bcc) phase transitions of ...the magnetic free energy contribution is responsible for ... See full document

... a high photon ...electro- magnetic radiation from accelerated, charged particles [ 109 ...a high photon flux in a narrow energy range (with ... See full document

... nanostructured iron(II) acetate; termogravimetry and differential scanning calorimetry; spectroscopy Mössbauer ...metals, iron cations are widely used for doping of several semiconductors, due to its ... See full document

... stoichiometric high-Tc superconductor CaKFe4 As4 Abstract We present a comprehensive study of the critical current densities and the superconducting vortex phase diagram in the stoichiometric ... See full document

... The UV–Vis absorption and fluorescence properties were studied in dichloro- methane at room temperature. To obtain insight into the spectroscopic characteristics, the electronic absorption spectrum calculations were ... See full document

... that magnetic state shows two sharp jumps of the screening length both below and above ...meta-magnetic transitions in the sample. The response of the material at very high field (>20Koe) ... See full document

... unlike magnetic moments, secondly, the positive contribution of the Ag element to the coupling process in the CuO layer which responsible for the superconductivity, leads to an increase in the c-lattice parameter, ... See full document

... and iron based superconductors are similar in occurrence of unusual normal state properties which are outside the framework of Fermi liquid ...make iron pnictides ...FeSCs iron spins order only the ... See full document

... the magnetic interaction between Fe atoms, causing the value of Ms (saturated magnetization) ...the magnetic particles become better through mechanical milling process to suppress Eddy current ...Fe ... See full document

... Vibrational Modes in Nanocrystalline Iron 4.1 Introduction The term “nanostructured” is broadly applied to materials with features on the nanometer scale. Structural modulations in this range have been ... See full document

... In present study, two individual composition regions of borosilicate glasses were in- vestigated in order to test the possible quantitative use of NMR and FTIR spectroscopy. The first type contains a limited ... See full document

... In other class of the scenarios, a fluctuation of the order parameter is considered as an origin of the pseudo gap. The fluctuation induced pseudo gap has been investigated from the old days. 15 Then, the quasi one ... See full document

... (Received on: March 19, 2013) ABSTRACT Using the theoretical formalism of B. Bucher et al. (PRL, 70, 2012) (1993), we have evaluated the temperature dependent Hall Coefficient R H for high T C ... See full document

... 20 temperature it is possible to cool the sample using liquid helium, which has its boiling point at 4.2 K. Niobium oxidizes easily to a variety of oxides and in this way it is capped by a thin Nb 2 O 5 layer, which ... See full document

... The high temperature superconductor of CuBa 2 Ca 2 Cu 3 O 8+ δ (Cu-1223) was synthesized experimentally by solid-state ...of superconductor if it was a high phase or low ...the high ... See full document

... In fact the majority of the volume of the sample in the tetragonal phase was filled by small clusters having orthorhombic short-range order, extending over several unit [r] ... See full document