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Title: Multimode Jahn-Teller effect in bulk systems: A case of the N V 0 center in diamond

Here, the multimode Jahn-Teller (JT) effect in a bulk system of a neutral nitrogen-vacancy (NV 0) center in diamond is investigated via first-principles density-functional-theory calculations and the intrinsic distortion path (IDP) method. The adiabatic potential energy surface of the electronic ground state of the NV 0 center is calculated based on the local spin-density approximation. Our calculations confirm the presence of the dynamic Jahn-Teller effect in the ground 2E state of the NV 0 center. Within the harmonic approximation, the IDP method provides the reactive path of JT distortion from unstable high-symmetry geometry to stable low-symmetry energy minimum geometry, and it describes the active normal modes participating in the distortion. We find that there is more than one vibrational mode contributing to the distortion, and their contributions change along the IDP. Several vibrational modes with large contributions to JT distortion, especially those modes close to 44 meV, are clearly observed as the phonon sideband in photoluminescence spectra in a series of experiments, indicating that the dynamic Jahn-Teller effect plays an important role in the optical transition of the NV 0 center.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States); Dept. of Electronic Science of Xiamen Univ., Xiamen (China)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  3. Xiamen Univ., Xiamen (China)
  4. Dept. of Electronic Science of Xiamen Univ., Xiamen (China); Duke Univ., Durham, NC (United States)
Publication Date:
Report Number(s):
IS-9644
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:
AC02-07CH11358; 11204257; 21233004
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 16; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1435746
Alternate Identifier(s):
OSTI ID: 1433576