Quantum metric nonlinear Hall effect in a topological antiferromagnetic heterostructure

被引：117

作者：

Gao, Anyuan ^{[1
]}

Liu, Yu-Fei ^{[1
,2
]}

Qiu, Jian-Xiang ^{[1
]}

Ghosh, Barun ^{[3
]}

Trevisan, Thais V. ^{[4
,5
]}

Onishi, Yugo ^{[6
]}

Hu, Chaowei ^{[7
]}

Qian, Tiema ^{[7
]}

Tien, Hung-Ju ^{[8
]}

Chen, Shao-Wen ^{[2
]}

Huang, Mengqi ^{[9
]}

Berube, Damien ^{[1
]}

Li, Houchen ^{[1
]}

Tzschaschel, Christian ^{[1
]}

Dinh, Thao ^{[1
,2
]}

Sun, Zhe ^{[1
,10
]}

Ho, Sheng-Chin ^{[1
]}

Lien, Shang-Wei ^{[8
]}

Singh, Bahadur ^{[11
]}

Watanabe, Kenji ^{[12
]}

Taniguchi, Takashi ^{[12
]}

Bell, David C. ^{[13
,14
]}

Lin, Hsin ^{[15
]}

Chang, Tay-Rong ^{[8
,16
,17
]}

Du, Chunhui Rita ^{[9
]}

Bansil, Arun ^{[3
]}

Fu, Liang ^{[6
]}

Ni, Ni ^{[7
]}

Orth, Peter P. ^{[4
,5
]}

Ma, Qiong ^{[10
,18
]}

Xu, Su-Yang ^{[1
]}

机构：

[1] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[5] Ames Natl Lab, Ames, IA 50011 USA

[6] MIT, Dept Phys, Cambridge, MA 02139 USA

[7] Univ Calif Los Angeles, Dept Phys & Astron & Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[8] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[9] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[10] Boston Coll, Dept Phys, Chestnut Hill, MA USA

[11] Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Mumbai, India

[12] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, I-1 Namiki, Tsukuba 3050044, Japan

[13] Harvard Univ, Harvard John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[14] Harvard Univ, Ctr Nanoscale Syst, Cambridge, MA 02138 USA

[15] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[16] Ctr Quantum Frontiers Res & Technol QFort, Tainan 701, Taiwan

[17] Phys Div Natl Ctr Theoret Sci, Taipei 10617, Taiwan

[18] Canadian Inst Adv Res, Toronto, ON, Canada

来源：

SCIENCE | 2023年 / 381卷 / 6654期

基金：

美国国家科学基金会; 瑞士国家科学基金会;

关键词：

D O I：

10.1126/science.adf1506

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Quantum geometry in condensed-matter physics has two components: the real part quantum metric and the imaginary part Berry curvature. Whereas the effects of Berry curvature have been observed through phenomena such as the quantum Hall effect in two-dimensional electron gases and the anomalous Hall effect (AHE) in ferromagnets, the quantum metric has rarely been explored. Here, we report a nonlinear Hall effect induced by the quantum metric dipole by interfacing even-layered MnBi2Te4 with black phosphorus. The quantum metric nonlinear Hall effect switches direction upon reversing the antiferromagnetic (AFM) spins and exhibits distinct scaling that is independent of the scattering time. Our results open the door to discovering quantum metric responses predicted theoretically and pave the way for applications that bridge nonlinear electronics with AFM spintronics.

引用

页码：181 / 186

页数：6

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