Ultrafast Carrier Dynamics in Ba6Cr2S10 Modified by Toroidal Magnetic Phase Transition

姜丽桐 ¹姜聪颖 ²田义超 ³赵惠 ³张俊 ¹田珍耘 ⁴付少华 ¹梁二军 ⁵望贤成 ³靳常青 ⁶赵继民⁶

扫码查看

作者信息

1. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China
2. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Strong-Field and Ultrafast Photonics Lab,Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China
3. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China
4. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physics & Laboratory of Zhongyuan Light,Zhengzhou University,Zhengzhou 450052,China
5. School of Physics & Laboratory of Zhongyuan Light,Zhengzhou University,Zhengzhou 450052,China
6. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;Songshan Lake Materials Laboratory,Dongguan 523808,China
折叠

Abstract

Ba6Cr2S10 is a recently discovered magnetic material,in which the spins are aligned ferromagnetically in the ab-plane and anti-parallelly in a paired form along the c-axis.It is characterized as a quasi-one dimensional(1D)dimerized structure with a ferrotoroidic order,forming the simplest candidate toroidal magnetic(TM)order and exhibiting an anti-ferromagnetic-like transition at around 10 K.Time-resolved ultrafast dynamics investigation of the novel A-Cr-S(A:metal elements)family of quantum materials has rarely been reported.Here,we investigate the time-resolved pump-probe ultrafast dynamics of a Ba.6Cr2S10 single crystal.A prominent change in the photo-excited carrier dynamics is observed at Tc=10 K,corresponding to the reported TM-paramagnetic phase transition.A potential unknown magnetic transition is also found at T*=29 K.Our results provide new evidence for the TM magnetic transition in Ba6Cr2S10,and shed light on phase transitions in TM quantum materials.

引用本文复制引用

基金项目

国家重点研发计划(2021YFA1400201)

国家重点研发计划(2017YFA0303600)

CAS Project for Young Scientists in Basic Research(YSBR-059)

北京市自然科学基金(4191003)

中国科学院战略规划重点项目(XDB30000000)

CAS Interdisciplinary Innovation Team()

出版年

2024

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDCSCDEI

影响因子：0.515

ISSN：0256-307X

参考文献量34

段落导航