Local spin dynamics at low temperature in the slowly relaxing molecular chain [Dy(hfac)3{NIT(C6H4OPh)}]: A μ+ spin relaxation study | Zendy

Paolo Arosio | Zendy; M. Corti | Zendy; Manuel Mariani | Zendy; Francesco Orsini | Zendy; Lapo Bogani | Zendy; Andréa Caneschi | Zendy; J. Lago | Zendy; A. Lascialfari | Zendy

Open Access

Local spin dynamics at low temperature in the slowly relaxing molecular chain [Dy(hfac)3{NIT(C6H4OPh)}]: A μ+ spin relaxation study

Author(s) -

Paolo Arosio,

M. Corti,

Manuel Mariani,

Francesco Orsini,

Lapo Bogani,

Andréa Caneschi,

J. Lago,

A. Lascialfari

Publication year - 2015

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4916024

Subject(s) - muon spin spectroscopy , condensed matter physics , relaxation (psychology) , spins , magnetization , magnetic field , chemistry , muon , physics , spin (aerodynamics) , atomic physics , thermodynamics , nuclear physics , quantum mechanics , psychology , social psychology , superconductivity

The spin dynamics of the molecular magnetic chain [Dy(hfac)3{NIT(C6H4OPh)}] were investigated by means of the Muon Spin Relaxation (μ+SR) technique. This system consists of a magnetic lattice of alternating Dy(III) ions and radical spins, and exhibits single-chain-magnet behavior. The magnetic properties of [Dy(hfac)3{NIT(C6H4OPh)}] have been studied by measuring the magnetization vs. temperature at different applied magnetic fields (H = 5, 3500, and 16500 Oe) and by performing μ+SR experiments vs. temperature in zero field and in a longitudinal applied magnetic field H = 3500 Oe. The muon asymmetry P(t) was fitted by the sum of three components, two stretched-exponential decays with fast and intermediate relaxation times, and a third slow exponential decay. The temperature dependence of the spin dynamics has been determined by analyzing the muon longitudinal relaxation rate λinterm(T), associated with the intermediate relaxing component. The experimental λinterm(T) data were fitted with a corrected pheno...

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