TY - JOUR
T1 - Carrier doping through iodine intercalation into Bi2Sr2CaCu2O8+δ with different δ values
AU - Koike, Yoji
AU - Sasaki, Keiichi
AU - Fujiwara, Akihiko
AU - Watanabe, Kei
AU - Kato, Masatsune
AU - Noji, Takashi
AU - Saito, Yoshitami
N1 - Funding Information:
The authors thank M. Takahashi for the use of a SQUID magnetometer. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas, "Science of High-I:: Superconductivity" given by the Ministry of Education, Science and Culture, Japan. One of the authors (YK) was supported by Toyota Physical and Chemical Research Institute.
PY - 1995
Y1 - 1995
N2 - Variations of the crystal structure, superconductivity, thermoelectric power and magnetic susceptibility with the iodine concentration x have been investigated for iodine-intercalated Bi2Sr2CaCu2O8+δ Ix with 0 ≤ x ≤ 1, using sintered samples of Bi2Sr2CaCu2O8+δ with three different values of 8 for the host samples. It has been concluded that the strange x dependence of Tc is mainly due to the x dependence of the hole concentration in the CuO2 sheets p, owing to charge transfer from iodine to the CuO2 sheets, and that the value of p has an upper limit in the Bi-2212 phase. The amount of holes transferred from iodine to the host material has been estimated as 0.18–0.35 per iodine, suggesting that iodine is intercalated predominantly in the form of I3− molecules.
AB - Variations of the crystal structure, superconductivity, thermoelectric power and magnetic susceptibility with the iodine concentration x have been investigated for iodine-intercalated Bi2Sr2CaCu2O8+δ Ix with 0 ≤ x ≤ 1, using sintered samples of Bi2Sr2CaCu2O8+δ with three different values of 8 for the host samples. It has been concluded that the strange x dependence of Tc is mainly due to the x dependence of the hole concentration in the CuO2 sheets p, owing to charge transfer from iodine to the CuO2 sheets, and that the value of p has an upper limit in the Bi-2212 phase. The amount of holes transferred from iodine to the host material has been estimated as 0.18–0.35 per iodine, suggesting that iodine is intercalated predominantly in the form of I3− molecules.
UR - http://www.scopus.com/inward/record.url?scp=0029288710&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029288710&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(95)00101-8
DO - 10.1016/0921-4534(95)00101-8
M3 - Article
AN - SCOPUS:0029288710
SN - 0921-4534
VL - 245
SP - 332
EP - 340
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 3-4
ER -