Measurement of collective excitations in by resonant inelastic x-ray scattering
- New York Univ., New York, NY (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Temple Univ., Philadelphia, PA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Amsterdam (The Netherlands)
- IBM Almaden Research Center, San Jose, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- New York Univ., New York, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland); Chinese Academy of Sciences (CAS), Beijing (China)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Vanadium dioxide is of broad interest as a spin-12 electron system that realizes a metal-insulator transition near room temperature, due to a combination of strongly correlated and itinerant electron physics. Here, resonant inelastic x-ray scattering is used to measure the excitation spectrum of charge and spin degrees of freedom at the vanadium L edge under different polarization and temperature conditions, revealing excitations that differ greatly from those seen in optical measurements. These spectra encode the evolution of short-range energetics across the metal-insulator transition, including the low-temperature appearance of a strong candidate for the singlet-triplet excitation of a vanadium dimer.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- DMR-1420073; W911NF-15-1-0181; AC02-76SF00515; AC02-05CH11231
- OSTI ID:
- 1348931
- Alternate ID(s):
- OSTI ID: 1329510; OSTI ID: 1468335
- Journal Information:
- Physical Review B, Vol. 94, Issue 16; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Resonant inelastic x-ray incarnation of Young’s double-slit experiment
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journal | January 2019 |
Resonant inelastic x-ray incarnation of Young's double-slit experiment | text | January 2019 |
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