skip to main content
Idioma:

Spin states, vibrations and spin relaxation in molecular nanomagnets and spin qubits: a critical perspective

Escalera-Moreno, Luis ; Baldoví, José J ; Gaita-Ariño, Alejandro ; Coronado, Eugenio

Chemical science (Cambridge), 2018, Vol.9 (13), p.3265-3275 [Periódico revisado por pares]

England: Royal Society of Chemistry

Texto completo disponível

Citações Citado por
  • Título:
    Spin states, vibrations and spin relaxation in molecular nanomagnets and spin qubits: a critical perspective
  • Autor: Escalera-Moreno, Luis ; Baldoví, José J ; Gaita-Ariño, Alejandro ; Coronado, Eugenio
  • Assuntos: Chemistry ; Coupling (molecular) ; Dysprosium ; Holmium ; Hysteresis ; Magnetic induction ; Magnetic relaxation ; Magnets ; Physical properties ; Solid state physics
  • É parte de: Chemical science (Cambridge), 2018, Vol.9 (13), p.3265-3275
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-3
    content type line 23
    ObjectType-Review-1
    These authors contributed equally to this work.
  • Descrição: Very recently the closely related fields of molecular spin qubits, single ion magnets and single atom magnets have been shaken by unexpected results. We have witnessed a jump in the phase memory times of spin qubits from a few microseconds to almost a millisecond in a vanadium complex, magnetic hysteresis up to 60 K in a dysprosium-based magnetic molecule and magnetic memory up to 30 K in a holmium atom deposited on a surface. With single-molecule magnets being more than two decades old, this rapid improvement in the physical properties is surprising and its explanation deserves urgent attention. The general assumption of focusing uniquely on the energy barrier is clearly insufficient to model magnetic relaxation. Other factors, such as vibrations that couple to spin states, need to be taken into account. In fact, this coupling is currently recognised to be the key factor that accounts for the slow relaxation of magnetisation at higher temperatures. Herein we will present a critical perspective of the recent advances in molecular nanomagnetism towards the goal of integrating spin-phonon interactions into the current computational methodologies of spin relaxation. This presentation will be placed in the context of the well-known models developed in solid state physics, which, as we will explain, are severely limited for molecular systems. Spin-vibration coupling has been proven to be crucial for spin dynamics; theoretical studies are now addressing this experimental challenge.
  • Editor: England: Royal Society of Chemistry
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  5 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.