Optical Raman measurements of low frequency magnons under high pressure
Abstract
The application of giga-Pascal scale pressures has been widely used as a tool to systematically tune the properties of materials in order to access such general questions as the driving mechanisms underlying phase transitions. While there is a large and growing set of experimental tools successfully applied to high-pressure environments, the compatibility between diamond anvil cells and optical probes offers further potential for examining lattice, magnetic, and electronic states, along with their excitations. Here, we describe the construction of a highly efficient optical Raman spectrometer that enables measurements of magnetic excitations in single crystals down to energies of 9 cm−1 (1.1 meV or 13 K) at cryogenic temperatures and under pressures of tens of GPa.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2020
- Source ID
- 10.1063/5.0026311
Entities
People
- Anjana Krishnadas
- Daniel Silevitch
- S. E. Cooper
- T. F. Rosenbaum
- Xiang Li
- Yejun Feng
Organizations
- Air Force Office of Scientific Research
- California Institute of Technology
- Okinawa Institute of Science and Technology