[Th-A1-G] Control of crystal phase & interface

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[Th-A1-G-03] Superconductivity and Suppressed Monoclinic Distortion in FeTe Films Enabled by Higher-Order Epitaxy

〇Yuki Sato¹, Soma Nagahama², Shunsuke Kitou², Hajime Sagayama³, Ilya Belopolski¹, Ryutaro Yoshimi^1,2, Minoru Kawamura¹, Atsushi Tsukazaki^2,4, Naoya Kanazawa², Takuya Nomoto⁵, Ryutaro Arita^1,2, Taka-hisa Arima^1,2, Masashi Kawasaki^1,2, Yoshinori Tokura^1,2 (1. RIKEN (Japan), 2. The Univ. of Tokyo (Japan), 3. High Energy Accelerator Research Organization (Japan), 4. Tohoku University (Japan), 5. Tokyo Metropolitan University (Japan))

We report 5:6 commensurate higher-order epitaxial FeTe films on CdTe substrate. FeTe films exhibit properties which are absent in bulk crystals: strong suppression of monoclinic distortion and emergent superconductivity.