Effect of magnetic and geometric properties on the time of magnetic relaxation of superparamagnetic core-shell nanoparticles

被引：0
作者：
Afremov, Leonid [1 ]
Il'syushin, Ilia [1 ]
机构：
[1] Far Easter Fed Univ, Sch Nat Sci, Vladivostok, Russia
来源：
ADVANCES IN TEXTILE ENGINEERING AND MATERIALS III, PTS 1 AND 2 | 2013年 / 821-822卷
关键词：
superparamagnetic particles; core-shell nanoparticles; relaxation time; magnetic states; critical field; metastable magnetic states; interphase exchange interaction; PARTICLES; FIELD; OXIDE;
D O I：
10.4028/www.scientific.net/AMR.821-822.1336
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Within the frame of two-phase superparamagnetic nanoparticles the effect of magnetic and geometric properties of superparamagnetic nanoparicles on the time of their magnetic relaxation has been defined. With increasing of volume, elongation of nanoparticle and relative volume of inclusions the time of relaxation grows rapidly. Metastability conditions of magnetic states have been developed. Growth of exchange constant magnitude of interphase interaction results in increasing of relaxation time regardless of exchange constant sign.
引用
收藏
页码：1336 / +
页数：2
相关论文
共 20 条
  • [1] Afremov L.L., 1996, THE PHYSICS OF METAL, V87, P12
  • [2] Magnetic dual-phase state of superparamagnetic particles in the field of mechanical stresses
    Afremov, Leonid
    Il'yushin, Ilia
    [J]. ADVANCED MATERIALS AND ENGINEERING MATERIALS II, 2013, 683 : 377 - +
  • [3] Magnetic states of heterophase particle in the field of mechanical stresses
    Afremov, Leonid
    Kirienko, Yury
    [J]. ADVANCED MATERIALS AND PROCESSES II, PTS 1-3, 2012, 557-559 : 735 - +
  • [4] Afremov LL, 1996, FIZ MET METALLOVED+, V82, P17
  • [5] Afremov LL, 1996, FIZ MET METALLOVED+, V82, P5
  • [6] Asymmetric hysteresis loops and its dependence on magnetic anisotropy in exchange biased Co/CoO core-shell nanoparticles
    Chandra, Sayan
    Khurshid, Hafsa
    Manh-Huong Phan
    Srikanth, Hariharan
    [J]. APPLIED PHYSICS LETTERS, 2012, 101 (23)
  • [7] Superparamagnetic core-shell polymer particles for efficient purification of his-tagged proteins
    Fang, Weijun
    Chen, Xiaolan
    Zheng, Nanfeng
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (39) : 8624 - 8630
  • [8] Biosensing based on light absorption of nanoscaled gold and silver particles
    Frederix, F
    Friedt, JM
    Choi, KH
    Laureyn, W
    Campitelli, A
    Mondelaers, D
    Maes, G
    Borghs, G
    [J]. ANALYTICAL CHEMISTRY, 2003, 75 (24) : 6894 - 6900
  • [9] Antibacterial properties of nanoparticles
    Hajipour, Mohammad J.
    Fromm, Katharina M.
    Ashkarran, Ali Akbar
    Jimenez de Aberasturi, Dorleta
    Ruiz de Larramendi, Idoia
    Rojo, Teofilo
    Serpooshan, Vahid
    Parak, Wolfgang J.
    Mahmoudi, Morteza
    [J]. TRENDS IN BIOTECHNOLOGY, 2012, 30 (10) : 499 - 511
  • [10] Study of UV Transmission through a Few Edible Oils and Chicken Oil
    Kumar, K. Anil
    Viswanathan, K.
    [J]. JOURNAL OF SPECTROSCOPY, 2013, 2013
12