[8a-N404-1~11] 11.1 Fundamental properties

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8a-N404-9] Imaging of Quantum Vortices in High-Tc Cuprates under Transport Current

〇(D)Shunsuke Nishimura¹, Takeyuki Tsuji^2,3, Takayuki Iwasaki³, Mutsuko Hatano³, Kento Sasaki³, Kensuke Kobayashi³ (1.Univ. Tokyo, 2.NIMS, 3.Science Tokyo)

Keywords:

Superconducting Quantum Vortex,Quantum sensor,Hysteresis

In hard type-II superconductors, quantum vortex arrangements are determined by creep motion arising from the competition between the pinning centers and local currents. This interplay has long been investigated as it induces significant hysteretic behaviors in magnetization and AC losses.In this study, we apply currents to strong-pinning type-II cuprate superconducting wires, confirming that quantum vortices emerge both when the current is applied after cooling and when applied during cooling. These results deepen our understanding of hysteretic phenomena related to transport currents in superconductors.