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Title: Fabrication of double mesa structures by E-beam lithography from high temperature superconducting Bi2Sr2CaCu2O 8+? (Bi2212) for powerful terahertz emission
Authors: Demirhan, Yasemin
Türkoğlu, Fulya
Köseoğlu, Hasan
Minematsu, M.
Araki, H.
Miyakawa, Nobuaki
Özyüzer, Lütfi
Keywords: Solid state device structures
Argon gas
Terahertz emissions
Electron beams
Mesa structure
Issue Date: 2011
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Demirhan, Y., Türkoğlu, F., Köseoğlu, H., Minematsu, M., Araki, H., Miyakawa, N., and Özyüzer, L. (2011 August 13-20). Fabrication of double mesa structures by E-beam lithography from high temperature superconducting Bi2Sr2CaCu2O 8+δ (Bi2212) for powerful terahertz emission. Paper presented at the 30th URSI General Assembly and Scientific Symposium. doi:10.1109/URSIGASS.2011.6050679
Abstract: We work on a frequency tunable solid state device to meet the needs of continuous, coherent, powerful terahertz emission sources that fill practically important terahertz gap. High temperature superconducting (HTS) coherently oscillating Josephson junctions in Bi2Sr2CaCu 2O8+δ (Bi2212) crystal make this approach very promising. Since doping dependence of Bi2212 is an important parameter, Bi2212 crystals are annealed in vacuum or purified argon gas flow at 425°C. For further processing we pattern both single and double rectangular mesa structures by using electron beam lithography on the cleaved surface of the crystal. Resistance-temperature (R-T), and current-voltage behavior (I-V) measurements achieved. © 2011 IEEE.
Description: 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011; Istanbul; Turkey; 13 August 2011 through 20 August 2011
ISBN: 9781424451173
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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