【中研院物理所通識演講訊息】張泰榕特聘教授 (榮獲 2025 年國科會傑出研究獎）

中研院物理所特別邀請國立成功大學物理系張泰榕特聘教授（榮獲 2025 年國科會傑出研究獎）蒞臨演講。張教授專精於拓撲材料電子結構與第一性原理計算，本次演講將深入介紹拓撲能帶理論，並分享磁性與非磁性拓撲絕緣體及軌道拓撲（Orbital Topology）的最新前沿研究。誠摯邀請您一同參與！

【講座資訊】

• 講者：張泰榕 特聘教授（國立成功大學物理系）

• 演講題目：Electronic Structure of Topological Materials

• 時間：2026 年 9 月 8 日（二）14:00

• 地點：中央研究院物理研究所 1 樓演講廳

• 接待人：徐晨軒 助研究員

• 演講語言：英文

• 活動網頁：https://www.phys.sinica.edu.tw/lecture_detail.php?id=3243&eng=T

【演講摘要】

Phase transitions are traditionally understood within Landau's framework of spontaneous symmetry breaking. The discovery of topological phases, however, has established a new paradigm in which quantum states are classified by the topology of their electronic wave functions. In this colloquium, I will introduce the basic concepts of topological band theory and discuss how first-principles calculations have guided the discovery of nonmagnetic and magnetic topological insulators. If time permits, I will conclude by presenting our recent work on orbital topology, highlighting a new topological perspective on the orbital Hall effect.

We are pleased to invite Prof. Tay-Rong Chang from National Cheng Kung University to speak at the upcoming IOP Colloquium. Prof. Chang specializes in the electronic structure of topological materials and first-principles calculations and is a recipient of the 2025 NSTC Outstanding Research Award. In this talk, he will introduce topological band theory and share recent research on topological insulators and orbital topology.

【Event Information】

• Speaker: Prof. Tay-Rong Chang / Department of Physics, National Cheng Kung University

• Title: Electronic Structure of Topological Materials

• Date & Time: September 08, 2026 (Tue.) 14:00

• Venue: 1F Auditorium, Institute of Physics, Academia Sinica

• Host: Dr. Chen-Hsuan Hsu

• Language: English

• Link: https://www.phys.sinica.edu.tw/lecture_detail.php?id=3243&eng=T

 【Abstract】

 Phase transitions are traditionally understood within Landau's framework of spontaneous symmetry breaking. The discovery of topological phases, however, has established a new paradigm in which quantum states are classified by the topology of their electronic wave functions. In this colloquium, I will introduce the basic concepts of topological band theory and discuss how first-principles calculations have guided the discovery of nonmagnetic and magnetic topological insulators. If time permits, I will conclude by presenting our recent work on orbital topology, highlighting a new topological perspective on the orbital Hall effect.

We warmly invite you to join us!