CARRIER DOPING THROUGH IODINE INTERCALATION INTO BI2SR2CACU2O8+DELTA WITH DIFFERENT DELTA-VALUES

被引：9

作者：

KOIKE, Y

SASAKI, K

FUJIWARA, A

WATANABE, K

KATO, M

NOJI, T

SAITO, Y

机构：

[1] Department of Applied Physics, Faculty of Engineering, Tohoku University, Sendai, 980-77, Aramaki Aoba Aoba-ku

来源：

PHYSICA C | 1995年 / 245卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(95)00101-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Variations of the crystal structure, superconductivity, thermoelectric power and magnetic susceptibility with the iodine concentration x have been investigated for iodine-intercalated Bi2Sr2CaCu2O8+deltaIx with 0 less than or equal to x less than or equal to 1, using sintered samples of Bi2Sr2CaCu2O(8+delta) with three different values of delta for the host samples. It has been concluded that the strange x dependence of T-c 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 I-3(-) molecules.

引用

页码：332 / 340

页数：9

共 30 条

[1]

Xiang X.-D., McKeman S., Vareka W.A., Zettl A., Corkill J.L., Barbec T.W., Cohen M.L., Nature, 348, (1990)

[2]

Xiang X.-D., Zettl A., Vareka W.A., Corkill J.L., Barbee T.W., Cohen M.L., Phys. Rev. B, 43, (1991)

[3]

Koike Y., Okubo T., Fujiwara A., Noji T., Saito Y., Solid State Commun, 79, (1991)

[4]

Okubo T., Fujiwara A., Koike Y., Noji T., Saito Y., Intercalation of Br and Li in Bi2Sr2Can−1CunO2n+4, Physica C: Superconductivity, 185-189, (1991)

[5]

Koike Y., Fujiwara A., Okubo T., Noji T., Saito Y., Jpn. J. Appl. Phys. Ser., 7, (1992)

[6]

Mochida M., Koike Y., Sasaki K., Fujiwara A., Noji T., Saito Y., Physica C, 212, (1993)

[7]

Xiang X.-D., Vareka W.A., Zettl A., Corkill J.L., Barbee T.W., Cohen M.L., Kijima N., Gronsky R., Science, 254, (1991)

[8]

Nakashima H., Pooke D.M., Motohira N., Tamura T., Nakayama Y., Kishio K., Kitazawa K., Yamafuji K., Intercalation of Bi2Sr2Can−1CunOy with iodine and other halogens, Physica C: Superconductivity, 185-189, (1991)

[9]

Pooke D., Kishio K., Koga T., Fukuda Y., Sanada N., Nagoshi M., Kitazawa K., Yamafuji K., Physica C, 198, (1992)

[10]

Koike Y., Iwabuchi Y., Hosoya S., Kobayashi N., Fukase T., Physica C, 159, (1989)

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