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Spin-Flip Optical Excitations in van der Waals Antiferromagnet CrPS4

delete2026-06-13
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PRE
AI
D
Dipankar Jana *
A
Aljoscha Söll
Z
Zdeněk Sofer
M
M. Orlita
C
C. Faugeras
M
Maciej Koperski
M
M. Potemski *
DOI：10.1021/acs.nanolett.6c01101delete
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Abstract

Abstract

En 中文
We investigate the near-infrared optical response of the semiconducting van der Waals antiferromagnet CrPS4 and identify previously unreported spin-entangled optical resonances. The strong and anisotropic magnetic-field dependence of these resonances reflects the underlying magnetic order and confirms the biaxial antiferromagnetic nature of CrPS4. From the magnetic field evolution of the optical transition, we extract key magnetic parameters, including the spin-flop (≈0.9 T) and spin-saturation (≈8 T) fields. These results demonstrate a potential pathway for all-optical probing of spin states in van der Waals antiferromagnets, with relevance for spin-sensitive optoelectronic and magneto-optical devices.
Keywords:
Magnetic properties
Order
Phase transitions
Quantum mechanics
2D antiferromagnets
magnetic anisotropy
spin-entangled exciton

Journal

Nano Letters cover
Nano Letters
IF:
9.1
Papers:
2.7W
Citations:
16.5W

Organization

U
university of chemistry and technology prague
Scholars:
296
Papers: 120
Citations: 0
C
cnrs
Scholars:
2.9K
Papers: 1.3K
Citations: 88
N
National University of Singapore
Scholars:
7.4W
Papers: 6.4W
Citations: 11.4W
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