Room-Temperature Ferromagnetism at an Oxide-Nitride Interface

Jin, Qiao1,2,3; Wang, Zhiwen4; Zhang, Qinghua1,2; Yu, Yonghong1,2,3; Lin, Shan1,2,3; Chen, Shengru1,2,3; Qi, Mingqun1,2; Bai, He5; Huon, Amanda6; Li, Qian7; Wang, Le8; Yin, Xinmao9; Tang, Chi Sin10; Wee, Andrew T. S.11; Meng, Fanqi1,2; Zhao, Jiali1,2; Wang, Jia-Ou12; Guo, Haizhong13; Ge, Chen1,2; Wang, Can1,2,3,14; Yan, Wensheng7; Zhu, Tao1,2,5,14; Gu, Lin1,2,3,14; Chambers, Scott A.8; Das, Sujit15; Charlton, Timothy6; Fitzsimmons, Michael R.6,16; Liu, Gang-Qin1,2,3,14; Wang, Shanmin17; Jin, Kui-Juan1,2,3,14; Yang, Hongxin4; Guo, Er-Jia1,2,3,14

2022-01-07

10.1103/PhysRevLett.128.017202

PHYSICAL REVIEW LETTERS   影响因子和分区

0031-9007

1079-7114

Heterointerfaces have led to the discovery of novel electronic and magnetic states because of their strongly entangled electronic degrees of freedom. Single-phase chromium compounds always exhibit antiferromagnetism following the prediction of the Goodenough-Kanamori rules. So far, exchange coupling between chromium ions via heteroanions has not been explored and the associated quantum states are unknown. Here, we report the successful epitaxial synthesis and characterization of chromium oxide (Cr2O3)-chromium nitride (CrN) superlattices. Room-temperature ferromagnetic spin ordering is achieved at the interfaces between these two antiferromagnets, and the magnitude of the effect decays with increasing layer thickness. First-principles calculations indicate that robust ferromagnetic spin interaction between Cr3+ ions via anion-hybridization across the interface yields the lowest total energy. This work opens the door to fundamental understanding of the unexpected and exceptional properties of oxide-nitride interfaces and provides access to hidden phases at low-dimensional quantum heterostructures.

SCI ; EI

英语

NI论文

其他

National Key Basic Research Program of China["2019YFA0308500","2020YFA0309100"] ; National Natural Science Foundation of China[11974390,52025025,52072400] ; Beijing Nova Program of Science and Technology[Z191100001119112] ; Beijing Natural Science Foundation["Z190010","Z200009",2202060] ; Strategic Priority Research Program of Chinese Academy of Sciences["XDB33030200","XDB28030000"] ; U.S. Department of Energy, Office of Science, Basic Energy Sciences[10122]

Physics

Physics, Multidisciplinary

WOS:000750028700001

AMER PHYSICAL SOC

20220311478401

Antiferromagnetism ; Calculations ; Degrees of freedom (mechanics) ; Ferromagnetic materials ; Ferromagnetism ; Metal ions ; Nitrides ; Quantum entanglement

Metallurgy:531.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Magnetic Materials:708.4 ; Inorganic Compounds:804.2 ; Mathematics:921 ; Mechanics:931.1 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China
5.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China
6.Oak Ridge Natl Lab, Neutron Scattering Div, POB 2009, Oak Ridge, TN 37831 USA
7.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
8.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA
9.Shanghai Univ, Phys Dept, Shanghai Key Lab High Temp Superconductors, Shanghai 200444, Peoples R China
10.ASTAR, Inst Mat Res & Engn, 2 Fusionopolis Way, Singapore 138634, Singapore
11.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117551, Singapore
12.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
13.Zhengzhou Univ, Sch Phys & Microelect, Key Lab Mat Phys, Minist Educ, Zhengzhou 450001, Peoples R China
14.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
15.Univ Paris Saclay, Unite Mixte Phys, Thales, CNRS, F-91767 Palaiseau, France
16.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
17.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Jin, Qiao,Wang, Zhiwen,Zhang, Qinghua,et al. Room-Temperature Ferromagnetism at an Oxide-Nitride Interface[J]. PHYSICAL REVIEW LETTERS,2022,128(1).

Jin, Qiao.,Wang, Zhiwen.,Zhang, Qinghua.,Yu, Yonghong.,Lin, Shan.,...&Guo, Er-Jia.(2022).Room-Temperature Ferromagnetism at an Oxide-Nitride Interface.PHYSICAL REVIEW LETTERS,128(1).

Jin, Qiao,et al."Room-Temperature Ferromagnetism at an Oxide-Nitride Interface".PHYSICAL REVIEW LETTERS 128.1(2022).