| Title | Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na2BaCo(PO4)2 |
| Author | Sheng，Jieming1,2,3,4  ; Wang，Le1,5; Candini，Andrea6; Jiang，Wenrui1,5; Huang，Lianglong1,5; Xi，Bin7; Zhao，Jize8; Ge，Han1; Zhao，Nan1; Fu，Ying1,5; Ren，Jun1; Yang，Jiong9; Miao，Ping3,4; Tong，Xin3,4; Yu，Dapeng1,5; Wang，Shanmin1; Liu，Qihang1; Kofu，Maiko10; Mole，Richard11; Biasiol，Giorgio12; Yu，Dehong11 ; Zaliznyak，Igor A.13; Mei，Jia Wei1,5,14; Wu，Liusuo1,14
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| Corresponding Author | Yu，Dehong; Zaliznyak，Igor A.; Mei，Jia Wei; Wu，Liusuo |
| Joint first author | Sheng，Jieming; Wang，Le |
| Publication Years | 2022-12-15
|
| DOI | |
| Source Title | |
| ISSN | 0027-8424
|
| EISSN | 1091-6490
|
| Volume | 119Issue:51 |
| Abstract | An interplay of geometrical frustration and strong quantum fluctuations in a spin-1/2 triangular-lattice antiferromagnet (TAF) can lead to exotic quantum states. Here, we report the neutron-scattering, magnetization, specific heat, and magnetocaloric studies of the recently discovered spin-1/2 TAF NaBaCo(PO), which can be described by a spin-1/2 easy axis XXZ model. The zero-field neutron diffraction experiment reveals an incommensurate antiferromagnetic ground state with a significantly reduced ordered moment of about 0.54(2) µ/Co. Different magnetic phase diagrams with magnetic fields in the ab plane and along the easy c-axis were extracted based on the magnetic susceptibility, specific heat, and elastic neutron-scattering results. In addition, two-dimensional (2D) spin dispersion in the triangular plane was observed in the high-field polarized state, and microscopic exchange parameters of the spin Hamiltonian have been determined through the linear spin wave theory. Consistently, quantum critical behaviors with the universality class of d = 2 and νz = 1 were established in the vicinity of the saturation field, where a Bose–Einstein condensation (BEC) of diluted magnons occurs. The newly discovered quantum criticality and fractional magnetization phase in this ideal spin-1/2 TAF present exciting opportunities for exploring exotic quantum phenomena. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | National Key Research and Development Program of China[2021YFA1400400]
; National Key Ramp
; D Program of China[2020YFA0308900]
; National Natural Science Foundation of China[
|
| WOS Research Area | Science & Technology - Other Topics
|
| WOS Subject | Multidisciplinary Sciences
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| WOS Accession No | WOS:000949671800005
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| Publisher | |
| ESI Research Field | BIOLOGY & BIOCHEMISTRY;CLINICAL MEDICINE;MULTIDISCIPLINARY;PLANT & ANIMAL SCIENCE;ENVIRONMENT/ECOLOGY;SOCIAL SCIENCES, GENERAL;MICROBIOLOGY;ECONOMICS BUSINESS;IMMUNOLOGY;MATERIALS SCIENCE;MATHEMATICS;SPACE SCIENCE;MOLECULAR BIOLOGY & GENETICS;PHARMACOLOGY & TOXICOLOGY;CHEMISTRY;PSYCHIATRY/PSYCHOLOGY;NEUROSCIENCE & BEHAVIOR;PHYSICS;GEOSCIENCES;AGRICULTURAL SCIENCES;ENGINEERING
|
| Data Source | Web of Science
|
| Publication Status | 正式出版
|
| Citation statistics |
Cited Times [WOS]:1
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/497211 |
| Department | Department of Physics 前沿与交叉科学研究院 理学院_化学系 |
| Affiliation | 1.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 2.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China 3.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,100049,China 4.Spallation Neutron Source Science Center (CSNS),Dongguan,523803,China 5.Shenzhen Institute for Quantum Science and Engineering,Shenzhen,518055,China 6.Istituto Sintesi Organica e Fotoreattività (ISOF - CNR),Bologna,Via P. Gobetti,101-40129,Italy 7.College of Physics Science and Technology,Yangzhou University,Yangzhou,225002,China 8.School of Physical Science and Technology,Key Laboratory for Magnetism and Magnetic Materials,The Ministry of Education,Lanzhou University,Lanzhou,730000,China 9.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China 10.Japan Proton Accelerator Research Complex (J-PARC) Center,Japan Atomic Energy Agency,Tokai,Ibaraki,319-1195,Japan 11.Australian Nuclear Science and Technology Organisation,Kirrawee,Locked bag 2001, DC,2232,Australia 12.Istituto Officina dei Materiali (IOM - CNR),Laboratorio di Tecnologie Avanzate,Superfici e Catalisi (TASC),Trieste,34149,Italy 13.Condensed Matter Physics and Materials Science Division,Brookhaven National Laboratory,Upton,11973,United States 14.Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China |
| First Author Affilication | Department of Physics; Academy for Advanced Interdisciplinary Studies |
| Corresponding Author Affilication | Department of Physics; Southern University of Science and Technology; |
| First Author's First Affilication | Department of Physics |
| Recommended Citation GB/T 7714 |
Sheng，Jieming,Wang，Le,Candini，Andrea,et al. Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na2BaCo(PO4)2[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2022,119(51).
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| APA |
Sheng，Jieming.,Wang，Le.,Candini，Andrea.,Jiang，Wenrui.,Huang，Lianglong.,...&Wu，Liusuo.(2022).Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na2BaCo(PO4)2.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(51).
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| MLA |
Sheng，Jieming,et al."Two-dimensional quantum universality in the spin-1/2 triangular-lattice quantum antiferromagnet Na2BaCo(PO4)2".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.51(2022).
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