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Conducting tin halides with a layered organic-based perovskite structure
THE discovery1 of high-temperature superconductivity in layered copper oxide perovskites has generated considerable fundamental and technological interest in this class of materials. Only a few otherExpand
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Conducting Layered Organic-inorganic Halides Containing <110>-Oriented Perovskite Sheets
Single crystals of the layered organic-inorganic perovskites, [NH2C(I=NH2]2(CH3NH3)m SnmI3m+2, were prepared by an aqueous solution growth technique. In contrast to the recently discovered family,Expand
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Infrared properties of high Tc superconductors
Over the past several years a coherent phenomenology of the high {Tc} cuprate superconductors has begun to emerge. Infrared measurements have contributed several important ingredients to this pictureExpand
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Transport, Optical, and Magnetic Properties of the Conducting Halide Perovskite CH3NH3SnI3
Abstract A low-temperature (T ≤ 100°C) solution technique is described for the preparation of polycrystalline and single crystal samples of the conducting halide perovskite, CH3NH3SnI3. Transport,Expand
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Raman measurements of YBa2Cu3Ox as a function of oxygen content
Abstract We report polarized Raman measurements on single crystals of YBa2Cu3Ox, Y123-Ox, as a function of oxygen content. For x=7 the usual five, c-axis polarized modes are observed; mode #5 occursExpand
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Enhanced magnetoresistance in sintered granular manganite/insulator systems
We report significant enhancements of magnetoresistance in granular (La0.67Ca0.33MnO3)x/(SrTiO3)1−x. The system exhibits a conduction threshold at x=xc∼60%, around which magnetoresistance versus xExpand
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Superfast Vortex Creep in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} Crystals with Columnar Defects: Evidence for Variable-Range Vortex Hopping
We observe a large peak in the vortex creep rate of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} crystals with columnar defects. The peak appears at the crossover from the regime where vortices are wellExpand
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Superfast Vortex Creep in YBa 2 Cu 3 O 7 2 d Crystals with Columnar Defects : Evidence for Variable-Range Vortex Hopping
We observe a large peak in the vortex creep rate of YBa 2Cu3O72d crystals with columnar defects The peak appears at the crossover from the regime where vortices are well localized on column to aExpand
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Resistive transition of crystalline Y1Ba2Cu3O7−x in magnetic fields
Abstract Transport and a.c. susceptibility data on a crystalline sample of Y 1 Ba 2 Cu 3 O 7− x in fields up to 9 T along the c-axis are presented. Careful study of the I–V curves and the frequencyExpand
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