Laser Mössbauer spectroscopy of ^{229}Th
Abstrak
Mössbauer spectroscopy is widely used in biochemistry, geology, and solid-state physics to obtain structural information on materials. Here, we extend this technique into the optical range using a vacuum ultraviolet laser to probe the low-energy nuclear transitions of thorium-229, doped in calcium fluoride crystals. We discover four distinct doping sites for the thorium ions, determine the characteristic electric field gradients emerging in the interaction with the host crystal, and identify the microscopic structure of the two dominant configurations. Site-selective laser excitation allows to study the isomeric state lifetime and laser-induced quenching for all sites. This laser-based Mössbauer spectroscopy provides a powerful probe of the nuclear environment, yielding foundational data for designing future solid-state nuclear clocks.
Topik & Kata Kunci
Penulis (26)
Takahiro Hiraki
Takahiko Masuda
Sayuri Takatori
Fabian Schaden
Michael Bartokos
Kjeld Beeks
Yuta Fukunaga
Andreas Grüneis
Ming Guan
Georgy Kazakov
Thomas LaGrange
Adrian Leitner
Ira Morawetz
Ryoichiro Ogake
Koichi Okai
Martin Pimon
Martin Pressler
Thomas Riebner
Noboru Sasao
Felix Schneider
Thorsten Schumm
Kotaro Shimizu
Luca Toscani de Col
Tomas Sikorsky
Akihiro Yoshimi
Koji Yoshimura
Akses Cepat
- Tahun Terbit
- 2025
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓