Interplay of spin-lattice and electronic coupling far above Neel ordering in 2D antiferromagnetic CrPS4 and its interface manifestation

@misc{jangra2026interplay,
  title = {{Interplay of spin-lattice and electronic coupling far above Neel ordering in 2D antiferromagnetic CrPS4 and its interface manifestation}},
  author = {Divya Jangra and Binoy Krishna De and Mukesh Kumar Dasoundhi and Sourav Chowdhury and Pragati Sharma and Kartick Biswas and Arup Basak and Dheeraj Kumar Gupta and Koushik chakraborty and Praveen Kumar Velpula and Pavan Nukala and U. Chandni and Arvind Kumar yogi and Mukul Gupta and Markus Hucker and Vasant G. Sathe},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.11203},
  eprint = {2609.11203},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.11203},
}

TY  - UNPB
TI  - Interplay of spin-lattice and electronic coupling far above Neel ordering in 2D antiferromagnetic CrPS4 and its interface manifestation
AU  - Divya Jangra
AU  - Binoy Krishna De
AU  - Mukesh Kumar Dasoundhi
AU  - Sourav Chowdhury
AU  - Pragati Sharma
AU  - Kartick Biswas
AU  - Arup Basak
AU  - Dheeraj Kumar Gupta
AU  - Koushik chakraborty
AU  - Praveen Kumar Velpula
AU  - Pavan Nukala
AU  - U. Chandni
AU  - Arvind Kumar yogi
AU  - Mukul Gupta
AU  - Markus Hucker
AU  - Vasant G. Sathe
PY  - 2026
DA  - 2026/09/15
PB  - arXiv
DO  - 10.48550/arxiv.2609.11203
UR  - https://arxiv.org/abs/2609.11203
AB  - A short-range spin correlation driven, strongly intercoupled spin-phonon-electronic state far above TN (~38K) is identified in the low dimensional van der Waals antiferromagnet CrPS4. Temperature-dependent Raman spectroscopy reveals spin-phonon coupling persisting up to T*~120K, concomitant with local lattice distortion. The setting of vibronic progression in photoluminescence spectra suggests the strengthening of electron-phonon coupling around T*. Furthermore, both the electrical transport and optoelectronic response also change significantly at T*. The results indicate that spin-phonon coupling above TN in CrPS4 originates from local lattice distortion induced by short range magnetic correlations which in turn enhances the electron-phonon interaction. Furthermore, using a CrPS4/In2Se3 heterostructure, we demonstrate that the anomaly associated with the coupled degrees of freedom in CrPS4 also influences the adjacent In2Se3 layer. The lattice dynamics of In2Se3 is significantly modified across the magnetic anomaly of CrPS4, and the coupled dynamics is observed at T*. These interfacial manifestation opens up new possibilities for achieving correlated multifunctionalities in artificially designed heterostructure.
ER  -