We have investigated the elastoresistance of two ##IMG## [http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn1.gif] {${\text{FeSe}}_{1-x}$} Te x ( ##IMG## [http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn2.gif] {$x\approx 0.4\text{--}0.5$} ) compounds that have a close chemical composition but differ significantly in electronic properties. The first compound has a negative temperature coefficient of resistance and does not show any phase transitions other than a superconducting one. The elastoresistance of this compound approximately follows the ##IMG## [http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn3.gif] {$1/T$} law which is a special case of the Curie-Weiss law, which is usually observed for Fe(Se,S) with metallic conductivity. The second compound has a metallic type of conductivity and, in addition to the superconducting transition, there is also a phase trans...

中文翻译：

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Fe（Se，Te）弹性增强的多频带效应

我们调查了两个## IMG ##的弹性强度[http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn1.gif] {$ {\ text {FeSe}} _ { 1-x} $} Te x（## IMG ## [http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn2.gif] {$ x \ approx 0.4 \ text { -} 0.5 $}）的化合物，其化学成分相近，但电子特性却有很大差异。第一化合物具有负的电阻温度系数，除超导化合物外不显示任何相变。该化合物的弹性大约遵循## IMG ## [http://ej.iop.org/images/0295-5075/131/5/57001/epl20272ieqn3.gif] {$ 1 / T $}律，即居里-魏斯定律的特殊情况，通常观察到具有金属导电性的Fe（Se，S）。第二种化合物具有金属类型的导电性，并且