Method for probing the magnetic state of nanomaterials encapsulated in carbon nanotubes | Zendy

Satoru Konabe | Zendy; Susumu Okada | Zendy

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Method for probing the magnetic state of nanomaterials encapsulated in carbon nanotubes

Author(s) -

Satoru Konabe,

Susumu Okada

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3556274

Subject(s) - carbon nanotube , exciton , spins , ferromagnetism , excited state , materials science , bethe–salpeter equation , exchange interaction , nanomaterials , condensed matter physics , optical properties of carbon nanotubes , chemical physics , absorption (acoustics) , molecular physics , nanotechnology , atomic physics , nanotube , chemistry , bound state , physics , quantum mechanics , composite material

We propose a method for optically probing the magnetic states of metallic atoms encapsulated in single-walled carbon nanotubes. The absorption spectrum is calculated by solving the Bethe–Salpeter equation, which includes the effects of magnetic atoms, under the tight-binding approximation. Due to the exchange interaction between excitons and polarized spins in ferromagnets, triplet excitons acquire a finite oscillator strength and can thus be excited by light. This mechanism is promising for detecting magnetic ordering of materials encapsulated in carbon nanotubes

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