TY - JOUR
T1 - The electrical resistivity of epitaxially deposited chromium films
AU - Sawabu, Masaki
AU - Ohashi, Masashi
AU - Ohashi, Kohei
AU - Miyagawa, Masahiro
AU - Kubota, Takahide
AU - Takanashi, Koki
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/7/26
Y1 - 2017/7/26
N2 - We studied the electrical resistance and crystal structure of epitaxial chromium (Cr) films. The lattice constant of the Cr films is larger than that of the bulk Cr because the sample and the substrate MgO have different lattice constants. An chromium oxide layer having a thickness of 1 nm was found on all films from the result of X-ray reflectivity measurements. Although there is sample dependence in electric resistance of Cr films, it is remarkable that a zero resistance was observed for one film of 50 nm thick. TC is obtained to be 3.2 K, which is about twice the previous reports. The large upper critical field is obtained to be HC2 = 13 kOe, and it suggests that Cr may belongs to a type II superconductor.
AB - We studied the electrical resistance and crystal structure of epitaxial chromium (Cr) films. The lattice constant of the Cr films is larger than that of the bulk Cr because the sample and the substrate MgO have different lattice constants. An chromium oxide layer having a thickness of 1 nm was found on all films from the result of X-ray reflectivity measurements. Although there is sample dependence in electric resistance of Cr films, it is remarkable that a zero resistance was observed for one film of 50 nm thick. TC is obtained to be 3.2 K, which is about twice the previous reports. The large upper critical field is obtained to be HC2 = 13 kOe, and it suggests that Cr may belongs to a type II superconductor.
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U2 - 10.1088/1742-6596/871/1/012002
DO - 10.1088/1742-6596/871/1/012002
M3 - Conference article
AN - SCOPUS:85027968579
SN - 1742-6588
VL - 871
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012002
T2 - 29th International Symposium on Superconductivity, ISS 2016
Y2 - 13 December 2016 through 15 December 2016
ER -