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Control of band structure of FeSe single crystals via biaxial strain

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 نشر من قبل Masamichi Nakajima
 تاريخ النشر 2021
  مجال البحث فيزياء
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We performed systematic transport measurements on FeSe single crystals with applying in-plane biaxial strain $varepsilon$ ranging from -0.96% to 0.23%. Biaxial strain was introduced by firmly gluing samples to various substrate materials with different thermal expansion. With increasing $varepsilon$, structural and superconducting transition temperatures monotonically increased and decreased, respectively. We analyzed magneto-transport results using a compensated three-carrier model. The evaluated densities of hole and electron carriers systematically changed with strain. This indicates that we succeeded in controlling the band structure of single-crystalline FeSe.



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