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报道了系列欠掺杂La2-xSrxCuO4(x=0·063,0·070,0·090,0·110,0·125)单晶的零场和加磁场情况下ab面和c方向的热导率与温度的关系曲线,测量温度范围从2到45K.研究发现ab面和c方向的热导率都受到磁场的压制.而且在磁场的作用下,热导压制率随温度变化的关系和场致反铁磁有序的增强与温度的依赖关系有高度相似性.认为磁场引起的ab面的热导压制主要是电子热导的变化所致,而c方向的压制则可能主要来源于声子热导的变化,它们均可能与磁场诱导下欠掺杂La2-xSrxCuO4中的某种电荷有序和磁有序的增强密切相关.
We report the zero fields of a series of undoped La2-xSrxCuO4 (x = 0.063,0,070,0.090,0.110,0 · 125) single crystals and the thermal conductance in the ab plane and the c direction in the presence of a magnetic field The relationship between temperature and the rate of temperature, the measurement temperature range from 2 to 45 K. The study found that ab plane and c direction of the thermal conductivity are subject to the magnetic field suppression. And the role of the magnetic field, the thermal conductivity of the rate of change with temperature and field Induced enhancement of anti-ferromagnetic order has a high degree of similarity with the temperature dependence.It is believed that the magnetic conduction-induced ab plane thermal conduction is mainly caused by the change of electron thermal conductivity, while the c-direction compression may be mainly from the phonon Thermal conductivity changes, they are likely to be under the magnetic field induced under-doped La2-xSrxCuO4 in a charge-order and magnetic order enhancement is closely related.