Dr. Minn-Tsong Lin (Advanced Materials and Surface Science)
Office:
Rm 625, Physics , NTU
Tel of Office:
+886-2-3366-5173
Laboratory:
Rm 619, 620, Physics , NTU
Tel of Lab.:
+886-2-3366-5168
Latest Research Work
P. J. Hsu, C.I. Lu, Y. H. Chu, B. Y. Wang, C. B. Wu, L. J. Chen, S. S. Wong,and Minn-Tsong Lin*
Spin structures of an exchange-coupled-bilayer system of expanded-face-centered-tetragonal (e-fct) Mn(001) ultrathin films grown on Co/Cu(001) were resolved by means of spin-polarized scanning-tunneling microscopy. With an in-plane spin-sensitive probe, a layered antiferromagnetic-spin ordering of Mn overlayers was evidenced directly. In addition, the spin frustration across the same Mn layer creating a narrow domain wall down to nanometer scale was also observed along the buried step of Co underlayers. According to the micromagnetic simulation, the step-induced domain-wall width is in agreement with the experimental results. Such in-plane layered antiferromagnetic-spin structures of e-fct Mn(001) provide uncompensated spins at the interface with Co underlayers and elucidate the mechanism of the corresponding exchange-bias field observed in the previous studies.
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People / Faculty / Minn-Tsong Lin
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Latest update 2025-02-08 11:52:15