Variable normal-state transport properties of Bi2Sr2CaCu2O8-y.
Variable normal-state transport properties of Bi2Sr2CaCu2O8-y.
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Bi2Sr2CaCu2O8-y 的可变常态输运特性。
DOI:
10.1103/physrevb.41.2526
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
Zettl
中科院分区:
文献类型:
--
作者:
Crommie;Liu;Cohen;Zettl
The normal-state thermoelectric power {ital S} and resistivity {rho} of crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8{minus}{ital y}} are strongly influenced by oxygen configuration. In general, the temperature dependences of the coefficients follow simple empirical expressions. For the {ital ab}-plane and {ital c}-axis thermopower, {ital S}{similar to}{ital A}+{ital BT}, while for the {ital ab}-plane resistivity, {rho}{similar to}{ital T}{sup {alpha}} exp({Delta}/{ital k}{sub {ital B}}T). Only {ital A} and {Delta} depend on oxygen configuration. These expressions may hold also for other classes of high-{ital T}{sub {ital c}} superconducting oxides and are suggestive of and place restrictions on normal-state transport models; normal-state transport models should in turn relate to superconductivity mechanisms.