A LOW-TEMPERATURE ULTRAHIGH-VACUUM SCANNING TUNNELING MICROSCOPE SYSTEM AND TUNNELING SPECTRA OF THE BI2212 SUPERCONDUCTOR

Authors
IKEDA K TAKAMUKU K KUBOTA H ITTI R KOSHIZUKA N
Citation
K. Ikeda et al., A LOW-TEMPERATURE ULTRAHIGH-VACUUM SCANNING TUNNELING MICROSCOPE SYSTEM AND TUNNELING SPECTRA OF THE BI2212 SUPERCONDUCTOR, Review of scientific instruments, 64(8), 1993, pp. 2221-2224
Citations number
38
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
Journal title
Review of scientific instruments → ACNP
ISSN journal
00346748
Volume
64
Issue
8
Year of publication
1993
Pages
2221 - 2224
Database
ISI
SICI code
0034-6748(1993)64:8<2221:ALUSTM>2.0.ZU;2-L
Abstract
We designed and constructed an ultrahigh vacuum scanning tunneling mic roscope (UHV-STM) which is available for the measurement of tunneling spectra at low temperature. The sample holder is cooled by thermal con duction to the stage that thermally connects with the refrigerator hea d. We cleaved Bi2Sr2CaCu2Oy (Bi2212 high T(c) superconductor) single c rystals under ultrahigh vacuum conditions, and measured tunneling spec tra of the Bi-O surface at 35 K. The spectra were smeared due to the f act that the STM tip was at high temperature ( > 100 K).