659 research outputs found
Beam Characteristics of a 10W Class Direct Diode Laser System for Materials Processing
Full text linkAbrupt transition in quasiparticle dynamics at optimal doping in a cuprate superconductor system
Full text linkWe report time-resolved measurements of the photoinduced change in
reflectivity, Delta R, in the Bi2Sr2Ca(1-y)Dy(y)Cu2O(8+delta) (BSCCO) system of
cuprate superconductors as a function of hole concentration. We find that the
kinetics of quasiparticle decay and the sign of Delta R both change abruptly
where the superconducting transition temperature Tc is maximal. These
coincident changes suggest that a sharp transition in quasiparticle dynamics
takes place precisely at optimal doping in the BSCCO system.Comment: 10 pages, 4 figure
Development of a 50W Class Direct Diode Laser System for Materials Processing and its Processing Characteristics(Physics, Processes, Instruments & Measurements)
Full text linkDynamic Observation of High Speed Laser-Arc Combination Welding of Thick Steel Plates(Physics, Processes, Instruments & Measurements)
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Social Psychological Studies of the Early Youth in the Shimokita Peninsula of the Northeast Japan (II)
Get PDFSocial Psychological Studies of the Early Youth in the Shimokita Peninsula of the Northeast Japan (I)
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