Exceeding natural resonance frequency limit of monodisperse Fe(3)O(4) nanoparticles via superparamagnetic relaxation.
Exceeding natural resonance frequency limit of monodisperse Fe(3)O(4) nanoparticles via superparamagnetic relaxation.
复制标题
通过超顺磁弛豫超越单分散 Fe3O4 纳米颗粒的自然共振频率极限
DOI:
10.1038/srep03161
复制
发表时间:
2013-11-07
影响因子:
4.6
通讯作者:
Cheng ZH
中科院分区:
文献类型:
--
作者:
Song NN;Yang HT;Liu HL;Ren X;Ding HF;Zhang XQ;Cheng ZH
Magnetic nanoparticles have attracted much research interest in the past decades due to their potential applications in microwave devices. Here, we adopted a novel technique to tune cut-off frequency exceeding the natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation. We observed that the cut-off frequency can be enhanced from 5.3 GHz for Fe3O4 to 6.9 GHz forFe3O4@SiO2 core-shell structure superparamagnetic nanoparticles, which are much higher than the natural resonance frequency of 1.3 GHz for Fe3O4 bulk material. This finding not only provides us a new approach to enhance the resonance frequency beyond the Snoek's limit, but also extend the application for superparamagnetic nanoparticles to microwave devices.
登录
查看更多内容
影响因子:
--
作者:
BROWN, WF
通讯作者:
BROWN, WF
影响因子:
38.3
作者:
Kampfrath, T.;Battiato, M.;Muenzenberg, M.
通讯作者:
Muenzenberg, M.
影响因子:
10.8
作者:
Kim, Hyungsuk K. D.;Schelhas, Laura T.;Carman, Gregory P.
通讯作者:
Carman, Gregory P.
DOI:
10.1109/tim.1970.4313932
发表时间:
1970-01-01
影响因子:
5.6
作者:
NICOLSON, AM;ROSS, GF
通讯作者:
ROSS, GF
影响因子:
2.7
作者:
Hasegawa, Daiji;Yang, Haitao;Takahashi, Migaku
通讯作者:
Takahashi, Migaku