Zeeman effect on the zero-phonon line of the NV center in synthetic diamond

✍ Scribed by H. Hanzawa; H. Nishikori; Y. Nisida; S. Sato; T. Nakashima; S. Sasaki; N. Miura

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 246 KB
• Volume: 184
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(93)90337-6

✦ Synopsis

To study the electronic states of an NV center in synthetic type-Ib diamonds, the Zeeman effect of the zero-phonon line (ZPL) in the absorption spectrum has been examined under high magnetic fields B, up to 150 T at 77 K. The absorption peak energies for circularly polarized lights ~r + and ~r-are shifted oppositely and nonlinearly to the magnetic fields for B II [1 0 0] in the Faraday configuration. The Zeeman splitting is 2.2 meV at 150 T, which leads to a g value of 0.22. It has been concluded that the orbital magnetic moment of the doubly degenerate excited state is partially quenched because the orbital degeneracy is lifted by an internal strain.