TY - JOUR
T1 - Switching-current distribution in underdoped La2-xSr xCuO4 intrinsic Josephson junctions
AU - Kitano, H.
AU - Ota, K.
AU - Ishikawa, K.
AU - Itoi, M.
AU - Imai, Y.
AU - Maeda, A.
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research from JSPS and MEXT of Japan and a High-Tech Research Center project for private universities with the matching fund subsidy from MEXT of Japan.
PY - 2010/12
Y1 - 2010/12
N2 - We succeeded in measuring the switching-current distribution, P(I), for the first switch from the zero-voltage state, where only two or three resistive states are included, in the intrinsic Josephson junctions (IJJs) of underdoped La2-xSrxCuO4. We found that the behavior of P(I) below 5 K was very similar to the recent results on IJJs of Bi 2Sr2CaCu2Oy. We discuss the origin of this behavior in terms of the interlayer coupling effects as well as macroscopic quantum tunneling.
AB - We succeeded in measuring the switching-current distribution, P(I), for the first switch from the zero-voltage state, where only two or three resistive states are included, in the intrinsic Josephson junctions (IJJs) of underdoped La2-xSrxCuO4. We found that the behavior of P(I) below 5 K was very similar to the recent results on IJJs of Bi 2Sr2CaCu2Oy. We discuss the origin of this behavior in terms of the interlayer coupling effects as well as macroscopic quantum tunneling.
KW - Intrinsic Josephson junction
KW - LSCO
KW - MQT
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U2 - 10.1016/j.physc.2009.10.103
DO - 10.1016/j.physc.2009.10.103
M3 - Article
AN - SCOPUS:78649698893
SN - 0921-4534
VL - 470
SP - S838-S839
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - SUPPL.1
ER -