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Title: Generating high-order optical and spin harmonics from ferromagnetic monolayers

Journal Article · · Nature Communications
ORCiD logo [1];  [2];  [1];  [1];  [3]
  1. Indiana State Univ., Terre Haute, IN (United States)
  2. Lanzhou Univ. (China)
  3. Univ. of Missouri-St. Louis, St. Louis, MO (United States)

High-order harmonic generation (HHG) in solids has entered a new phase of intensive research, with envisioned band-structure mapping on an ultrashort time scale. This partly benefits from a flurry of new HHG materials discovered, but so far has missed an important group. HHG in magnetic materials should have profound impact on future magnetic storage technology advances. Here we introduce and demonstrate HHG in ferromagnetic monolayers. We find that HHG carries spin information and sensitively depends on the relativistic spin–orbit coupling; and if they are dispersed into the crystal momentum k space, harmonics originating from real transitions can be k-resolved and carry the band structure information. Geometrically, the HHG signal is sensitive to spatial orientations of monolayers. Different from the optical counterpart, the spin HHG, though probably weak, only appears at even orders, a consequence of SU(2) symmetry. Our findings open an unexplored frontier—magneto-high-order harmonic generation.

Research Organization:
Indiana State Univ., Terre Haute, IN (United States); Lawrence Berkeley National Lab. (LBNL), CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-06ER46304; AC02-05CH11231
OSTI ID:
1511704
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (9)

Directed Self-Assembly of Templatable Block Copolymers by Easily Accessible Magnetic Control journal January 2019
Polarization-state-resolved high-harmonic spectroscopy of solids journal March 2019
All-optical spin switching under different spin configurations journal June 2019
Contribution of Floquet-Bloch states to high-order harmonic generation in solids journal July 2019
Robustness of topologically sensitive harmonic generation in laser-driven linear chains journal May 2019
High harmonic generation in magnetically-doped topological insulators journal September 2019
Magic high-order harmonics from a quasi-one-dimensional hexagonal solid journal March 2019
High-harmonic generation in Su-Schrieffer-Heeger chains journal May 2019
Polarization-state-resolved high-harmonic spectroscopy of solids text January 2019

Figures / Tables (4)


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