Unveiling the hidden nematicity and spin subsystem in FeSe
Abstrak
Iron-based superconductors: Hidden nematic and magnetic fluctuations in iron selenide Ultrafast spectroscopy unveils hidden nematic fluctuations and a spin subsystem in the iron-based superconductor iron selenide. Layered iron-based materials recently emerged as a new class of high temperature superconductor. The mechanism of superconductivity in these materials, however, is a contentious issue. Nematic ordering is thought to be a key ingredient, but the apparent absence of magnetic ordering in iron selenide, which is the iron-based superconductor with the simplest structure, has caused confusion over what drives the nematicity. An international team of researchers led by Chih-Wei Luo and Jenh-Yih Juang from National Chiao Tung University use polarized ultrafast spectroscopy to unveil a hidden spin subsystem in FeSe, along with both nematic and magnetic fluctuations at relatively high temperatures, providing insights into the driving factors of nematicity in this fascinating material.
Topik & Kata Kunci
Penulis (10)
Chih-Wei Luo
Po Chung Cheng
Shun-Hung Wang
Jen-Che Chiang
Jiunn-Yuan Lin
Kaung-Hsiung Wu
Jenh-Yih Juang
Dmitry A. Chareev
Olga S. Volkova
Alexander N. Vasiliev
Akses Cepat
- Tahun Terbit
- 2017
- Sumber Database
- DOAJ
- DOI
- 10.1038/s41535-017-0036-5
- Akses
- Open Access ✓