Abstract The in-plane electrical resistivity and thermoelectric power have been measured on single crystals of La2-xBaxCuO4 at around x=0.125. The room temperature resistivity and thermopower have their maximum values at x=0.125, indicating that the carrier concentration is the minimum and the carriers are most strongly localized at x=0.125. The observed semiconductor-like behaviour can be well described by the weak-localized quasi-two-dimensional state. The steep rise in electric resistivity of the sample at x=0.125 below 70K is attributed to the formation of static stripe-order of holes and spins, which are pinned by the low-temperature tetragonal (LTT) structure, as discovered in La1.48Nd0.4Sr0.12CuO4. The temperature dependence of electric resistivity below 70K is still well described by the formula $\rho \varpropto \ln T$. A definite change in the slope of thermopower is observed at the low-temperature orthorhombic-LTT structural phase transition temperature. The origin of the 1/8 anomaly is discussed in the text.
Received: 12 September 2001
Revised: 29 October 2001
Accepted manuscript online:
PACS:
72.20.Jv
(Charge carriers: generation, recombination, lifetime, and trapping)
Fund: Project supported by the Major State Basic Research Development Programme of China (Grant No 19990646).
Cite this article:
Li Peng-Cheng (李鹏程), Yang Hong-Shun (杨宏顺), Li Zhi-Quan (李志权), Chai Yi-Sheng (柴一晟), Cao Lie-Zhao (曹烈兆) Study on the in-plane electrical resistivity and thermoelectric power in single crystals of La2-xBaxCuO4 2002 Chinese Physics 11 282
Different behavior of upper critical field in Fe1-xSe single crystals Shunli Ni(倪顺利), Wei Hu(胡卫), Peipei Shen(沈沛沛), Zhongxu Wei(魏忠旭), Shaobo Liu(刘少博), Dong Li(李栋), Jie Yuan(袁洁), Li Yu(俞理), Kui Jin(金魁), Fang Zhou(周放), Xiaoli Dong(董晓莉), Zhongxian Zhao(赵忠贤). Chin. Phys. B, 2019, 28(12): 127401.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
