Structure-Spin-Transport Anomaly in Quasi-One-Dimensional Ba(9)Fe(3)Te(15)under High Pressure

Zhang, Jun1,2,3; Jin, Mei-Ling1,8; Li, Xiang4; Wang, Xian-Cheng2; Zhao, Jian-Fa2,3; Liu, Ying5; Duan, Lei2,3; Li, Wen-Min2,3; Cao, Li-Peng2; Chen, Bi-Juan1; Wang, Li-Juan1; Sun, Fei1; Wang, Yong-Gang1; Yang, Liu-Xiang1; Xiao, Yu-Ming6; Deng, Zheng2; Feng, Shao-Min2; Jin, Chang-Qing2,3,7; Zhu, Jin-Long1,8

2020-08

10.1088/0256-307X/37/8/087106

CHINESE PHYSICS LETTERS   影响因子和分区

0256-307X

1741-3540

Recently, a series of novel compounds Ba3MX5(M = Fe, Ti, V; X = Se, Te) with hexagonal crystal structures composed of quasi-1-dimensional (1D) magnetic chains has been synthesized by our research team using high-pressure and high-temperature methods. The initial hexagonal phases persist to the maximum achievable pressure, while spin configurations and magnetic interactions may change dramatically as a result of considerable reductions in interchain separations upon pressurization. These compounds therefore offer unique possibilities for studying the evolution of intrinsic electronic structures in quasi-1D magnetic systems. Here we present a systematic investigation of Ba9Fe3Te15, in which the interchain separations between trimerized 1D chains (similar to 10.2 angstrom) can be effectively modulated by external high pressure. The crystal structure especially along the 1D chains exhibits an abnormal expansion at similar to 5 GPa, which accompanies trimerization entangled anomalous mixed-high-low spin transition. An insulator-metal transition has been observed under high pressure as a result of charge-transfer gap closing. Pressure-induced superconductivity emerges at 26 GPa, where the charge-transfer gap fully closes, 3D electronic configuration forms and local spin fully collapses.

71 27 +a 30 +h 74 62 Fj

SCI ; EI

英语

通讯

National Natural Science Foundation of China[U1930401][11974410][11820101003][11921004][11534016] ; National Key R&D Program of China[2018YFA0305703][2018YFA0305700][2017YFA0302900]

Physics

Physics, Multidisciplinary

WOS:000563177400001

IOP PUBLISHING LTD

20220711662796

Charge transfer ; Electronic structure ; Magnetism ; Metal insulator transition

Magnetism: Basic Concepts and Phenomena:701.2 ; Chemical Reactions:802.2 ; Crystal Lattice:933.1.1

PHYSICS

Web of Science

1.Ctr High Pressure Sci & Technol Adv Res, Beijing 100094, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys, Beijing 100190, Peoples R China
4.Beijing Inst Technol, Sch Phys, Minist Educ, Key Lab Adv Optoelect Quantum Architecture & Meas, Beijing 100081, Peoples R China
5.Xian Modern Chem Res Inst, Xian 710065, Peoples R China
6.Argonne Natl Lab, Adv Photon Source, High Pressure Collaborat Access Team, Argonne, IL 60439 USA
7.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
8.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Zhang, Jun,Jin, Mei-Ling,Li, Xiang,et al. Structure-Spin-Transport Anomaly in Quasi-One-Dimensional Ba(9)Fe(3)Te(15)under High Pressure[J]. CHINESE PHYSICS LETTERS,2020,37(8).

Zhang, Jun.,Jin, Mei-Ling.,Li, Xiang.,Wang, Xian-Cheng.,Zhao, Jian-Fa.,...&Zhu, Jin-Long.(2020).Structure-Spin-Transport Anomaly in Quasi-One-Dimensional Ba(9)Fe(3)Te(15)under High Pressure.CHINESE PHYSICS LETTERS,37(8).

Zhang, Jun,et al."Structure-Spin-Transport Anomaly in Quasi-One-Dimensional Ba(9)Fe(3)Te(15)under High Pressure".CHINESE PHYSICS LETTERS 37.8(2020).