Detail publikačního výsledku

Effective interaction quenching in artificial kagomé spin chains

Salmon, L.; Schanilec, V.; Coraux, J.; Canals, B.; Rougemaille, N.

Originální název

Effective interaction quenching in artificial kagomé spin chains

Anglický název

Effective interaction quenching in artificial kagomé spin chains

Druh

Článek WoS

Originální abstrakt

Achieving thermal equilibrium in two-dimensional lattices of interacting nanomagnets has been a key issue on the route to study exotic phases in artificial frustrated magnets. We revisit this issue in one-dimensional artificial kagome spin chains. Imaging arrested microstates resulting from a field demagnetization protocol and analyzing their pairwise spin correlations in real space, we unveil a nonequilibrated physics. Remarkably, this physics can be reformulated into an at -equilibrium one by rewriting the associated spin Hamiltonian in such a way that one of the coupling constants is quenched. We interpret this quenching mechanism as a kinetic hinderance occurring upon demagnetization, which induces the formation of local flux closure spin configurations that compete with those energetically favored by the magnetostatic interaction coupling the nanomagnets.

Anglický abstrakt

Achieving thermal equilibrium in two-dimensional lattices of interacting nanomagnets has been a key issue on the route to study exotic phases in artificial frustrated magnets. We revisit this issue in one-dimensional artificial kagome spin chains. Imaging arrested microstates resulting from a field demagnetization protocol and analyzing their pairwise spin correlations in real space, we unveil a nonequilibrated physics. Remarkably, this physics can be reformulated into an at -equilibrium one by rewriting the associated spin Hamiltonian in such a way that one of the coupling constants is quenched. We interpret this quenching mechanism as a kinetic hinderance occurring upon demagnetization, which induces the formation of local flux closure spin configurations that compete with those energetically favored by the magnetostatic interaction coupling the nanomagnets.

Klíčová slova

COULOMB PHASE; GEOMETRICAL FRUSTRATION; ICE; MAGNETISM; FRAGMENTATION

Klíčová slova v angličtině

COULOMB PHASE; GEOMETRICAL FRUSTRATION; ICE; MAGNETISM; FRAGMENTATION

Autoři

Salmon, L.; Schanilec, V.; Coraux, J.; Canals, B.; Rougemaille, N.

Rok RIV

2025

Vydáno

22.02.2024

Nakladatel

AMER PHYSICAL SOC

Místo

COLLEGE PK

ISSN

2469-9969

Periodikum

Physical Review B

Svazek

109

Číslo

5

Stát

Spojené státy americké

Strany počet

8

URL

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.109.054425

BibTex

@article{BUT188919,
  author="Salmon, L. and Schanilec, V. and Coraux, J. and Canals, B. and Rougemaille, N.",
  title="Effective interaction quenching in artificial kagomé spin chains",
  journal="Physical Review B",
  year="2024",
  volume="109",
  number="5",
  pages="8",
  doi="10.1103/PhysRevB.109.054425",
  issn="2469-9950",
  url="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.109.054425"
}