title: Zhang et al. Reply.
authors.affiliation: Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan.
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Zhang
authors.affiliation: Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan.
authors.forename: Ping-Yuan
authors.initials: PY
authors.lastname: Lo
authors.affiliation: Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan.
authors.forename: Heng-Na
authors.initials: HN
authors.lastname: Xiong
authors.affiliation: Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan.
authors.forename: Matisse Wei-Yuan
authors.initials: MW
authors.lastname: Tu
authors.affiliation: Center for Emergent Matter Science, RIKEN, Saitama 351-0198, Japan.|Physics Department, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA.
authors.forename: Franco
authors.initials: F
authors.lastname: Nori