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- Title
Analysis of Near-Field Magnetic Responses on ZrTe 5 through Cryogenic Magneto-THz Nano-Imaging.
- Authors
Haeuser, Samuel; Kim, Richard H. J.; Park, Joong-Mok; Chan, Randall K.; Imran, Muhammad; Koschny, Thomas; Wang, Jigang
- Abstract
One manifestation of light-Weyl fermion interaction is the emergence of chiral magnetic effects under magnetic fields. Probing real space magnetic responses at terahertz (THz) scales is challenging but highly desired, as the local responses are less affected by the topologically trivial inhomogeneity that is ubiquitous in spatially averaged measurements. Here, we implement a cryogenic THz microscopy instrument under a magnetic field environment—a task only recently achieved. We explore the technical approach of this system and characterize the magnetic field's influence on our AFM operation by statistical noise analysis. We find evidence for local near-field spatial variations in the topological semimetal ZrTe5 up to a 5-Tesla magnetic field and obtain near-field THz spectra to discuss their implications for future studies on the chiral magnetic effect.
- Subjects
MAGNETIC field effects; CHIRALITY of nuclear particles; SPACE probes; MAGNETIC fields; OPTICAL microscopes; SPATIAL variation
- Publication
Instruments (2410-390X), 2024, Vol 8, Issue 1, p21
- ISSN
2410-390X
- Publication type
Article
- DOI
10.3390/instruments8010021