English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Cyclotron resonance inside the Mott gap: A fingerprint of emergent neutral fermions

MPS-Authors
/persons/resource/persons244483

Rao,  Peng
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons217476

Sodemann,  Inti
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

1905.08271.pdf
(Preprint), 2MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Rao, P., & Sodemann, I. (2019). Cyclotron resonance inside the Mott gap: A fingerprint of emergent neutral fermions. Physical Review B, 100(15): 155150. doi:10.1103/PhysRevB.100.155150.


Cite as: https://hdl.handle.net/21.11116/0000-0005-88D2-4
Abstract
A major obstacle to identify exotic quantum phases of matter featuring spin-charge separation above one-dimension is the lack of tailored probes allowing to establish their presence in correlated materials. Here we propose an optoelectronic response that could allow to pinpoint the presence of certain spin-charge separated states with emergent neutral gapless fermions in two and three-dimensional materials. We show that even though these states behave like insulators under static electric fields, they can display clear cyclotron resonance peaks in their light absorption spectrum under static magnetic fields, but typically the principal Kohn mode will be missing in comparison to ordinary metals. This distinctive phenomenon could be tested in materials such as triangular lattice organics, three-dimensional mixed valence insulators YbB12 and SmB6, and transition metal dichalcogenides 1T-TaS2 and 1T-TaSe2.