#################################################### # Takeshi Egami # requesting 6 days days, at minimum=5 days days # beamline 33ID, Superlattice in the superconducting cuprate # instrument 33ID-D kappa #################################################### # top:/home/www/beamtime-requests/req01075.txt # UNICAT Member Beam Time Request #1075 # created Tue Dec 12 09:22:10 CST 2006 #################################################### apsrun: 2007-01 beamline: 33ID collaboration: No collaborator_Paul: ON contact: egami@utk.edu days: 6 days description: We will confirm the newly discovered superlattice in YBCO-1248 of the 2*sqrt(2) x 2*sqrt(2) type, and study more carefully its temperature dependence, using the YBCO-1248 single crystal synthsized under pressure. The measurement last time shows the intensity of the superlattic peaks DECREASES below the pseudo-gap temperature, directly implying the involvement of the superlattice in superconductivity. This is the first time the intemediate phase between the Mott-Hubbard insulator and the Fermi-liquid phase other than the famous stripe phase was discovered, and has tremendous implications. We will use the kapper goniometer and 16.9 keV. GUP for this project has been submitted. equipment_required: Displex, energy sensitive detector experiment: Superlattice in the superconducting cuprate foreign_nationals: Konstantin Lokshin Madhusudan Ojha hazards: None anticipated. instrument: 33ID-D kappa instrument_other: minimumdays: 5 days name: Takeshi Egami nonmembers: submit: Submit unacceptable_dates: March 5-8 (March Meeting) z34ID_details: #REMOTE_HOST: egamipc1.engr.utk.edu #REMOTE_ADDR: 160.36.8.120 #CONTENT_LENGTH: 1164 #HTTP_REFERER: http://www.uni.aps.anl.gov/admin/unireq.html #HTTP_USER_AGENT: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)