Quantum tunneling of magnetization in single domain particles
| Contribuinte(s) |
Universitat de Barcelona |
|---|---|
| Data(s) |
02/03/2012
|
| Resumo |
We present a study of the magnetic relaxation of several ferrofluids composed of particles of about 40 Å in diameter (Fe3O4FeC, CoFe2O4). Our key observation is a nonthermal character of the relaxation below 3 K for the CoFe2O4 ferrofluid and below 1 K for the FeC ferrofluid. The crossover temperature from thermal to nonthermal (quantum) regime is in accordance with theoretical suggestions of macroscopic quantum tunneling of magnetization in single doma in particles |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
American Institute of Physics |
| Direitos |
(c) American Institute of Physics, 1993 |
| Palavras-Chave | #Relaxació magnètica #Magnetisme #Efecte túnel #Matèria condensada #Anisotropia #Magnetic relaxation #Magnetism #Tunneling (Physics) #Condensed matter #Anisotropy |
| Tipo |
info:eu-repo/semantics/article |
