Elemental excitations in MoI<sub>3</sub> one-dimensional van der Waals nanowires-Reference-Cited by-同舟云学术

Elemental excitations in MoI₃ one-dimensional van der Waals nanowires

Published:2022-11-28 Issue:22 Volume:121 Page:221901
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:Appl. Phys. Lett.

Author:

Kargar Fariborz¹^ORCID,Barani Zahra¹,Sesing Nicholas R.²^ORCID,Mai Thuc T.³^ORCID,Debnath Topojit⁴^ORCID,Zhang Huairuo⁵⁶^ORCID,Liu Yuhang⁴^ORCID,Zhu Yanbing⁷,Ghosh Subhajit¹^ORCID,Biacchi Adam J.⁸^ORCID,da Jornada Felipe H.⁹^ORCID,Bartels Ludwig¹⁰^ORCID,Adel Tehseen³^ORCID,Hight Walker Angela R.³,Davydov Albert V.⁶^ORCID,Salguero Tina T.²^ORCID,Lake Roger K.⁴^ORCID,Balandin Alexander A.¹^ORCID

Affiliation:

1. Nano-Device Laboratory (NDL) and Phonon Optimized Engineered Materials (POEM) Center, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA

2. Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA

3. Quantum Measurement Division, Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899, USA

4. Laboratory for Terascale and Terahertz Electronics (LATTE), Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA

5. Theiss Research, Inc., La Jolla, California 92037, USA

6. Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

7. Department of Applied Physics, Stanford University, Stanford, California 94305, USA

8. Nanoscale Device Characterization Division, Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899, USA

9. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA

10. Department of Chemistry, University of California, Riverside, California 92521, USA

Abstract

We report the polarization-dependent Raman spectra of exfoliated MoI3, a van der Waals material with a “true one-dimensional” crystal structure that can be exfoliated to individual atomic chains. The temperature evolution of several Raman features reveals an anomalous behavior suggesting a phase transition of magnetic origin. Theoretical considerations indicate that MoI3 is an easy-plane antiferromagnet with alternating spins along the dimerized chains and with inter-chain helical spin ordering. The calculated frequencies of phonons and magnons are consistent with the interpretation of the experimental Raman data. The obtained results shed light on the specifics of the phononic and magnonic states in MoI3 and provide a strong motivation for further study of this unique material with potential for future spintronic applications.

Funder

Office of Naval Research

National Science Foundation

U.S. Department of Commerce

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

Link

https://aip.scitation.org/doi/am-pdf/10.1063/5.0129904

Reference46 articles.

1. One-dimensional van der Waals materials—Advent of a new research field