Control of band structure of FeSe single crystals via biaxial strain
| Autor: | Setsuko Tajima, Masamichi Nakajima, Y. Ohata |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Superconductivity
Biaxial strain Condensed Matter - Materials Science Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Strain (chemistry) Condensed Matter - Superconductivity Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology Substrate (electronics) Electron 021001 nanoscience & nanotechnology 01 natural sciences Thermal expansion Superconductivity (cond-mat.supr-con) 0103 physical sciences General Materials Science 010306 general physics 0210 nano-technology Electronic band structure |
| Popis: | 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. 9 pages, 12 figures |
| Databáze: | OpenAIRE |
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