Magnetic dissipation and fluctuations in individual nanomagnets measured by ultrasensitive cantilever magnetometry

被引：129
|
作者：
Stipe, BC
Mamin, HJ
Stowe, TD
Kenny, TW
Rugar, D
机构：
[1] IBM Res Div, Almaden Res Ctr, San Jose, CA 95120 USA
[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
[3] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.86.2874
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Cantilever magnetometry with moment resolution better than 10(4) mu (B) was used to study individual nanomagnets. By using the fluctuation-dissipation theorem to interpret measurements of field-induced cantilever damping, the low frequency spectral density of magnetic fluctuations could be determined with resolution better than 1 mu (B) Hz(-1/2). Cobalt nanowires exhibited significant magnetic dissipation and the associated magnetic fluctuations were found to have 1/f frequency dependence. In individual submicron rare-earth alloy magnets, the dissipation/fluctuation was very small and not distinguishable from that of a bare silicon cantilever.
引用
收藏
页码：2874 / 2877
页数：4
相关论文
共 50 条
  • [41] First order reversal curves (FORC) analysis of individual magnetic nanostructures using micro-Hall magnetometry
    Pohlit, Merlin
    Eibisch, Paul
    Akbari, Maryam
    Porrati, Fabrizio
    Huth, Michael
    Mueller, Jens
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11):
  • [42] Fractal dissipation of small-scale magnetic fluctuations in solar wind turbulence as seen by CLUSTER
    Kiyani, K.
    Chapman, S.
    Khotyaintsev, Y.
    Dunlop, M.
    Sahraoui, F.
    TWELFTH INTERNATIONAL SOLAR WIND CONFERENCE, 2010, 1216 : 136 - +
  • [43] Magnetic Anisotropy of Individual Nanomagnets Embedded in Biological Systems Determined by Axi-asymmetric X-ray Transmission Microscopy
    Marcano, Lourdes
    Orue, Inaki
    Gandia, David
    Gandarias, Lucia
    Weigand, Markus
    Marius Abrudan, Radu
    Garcia-Prieto, Ana
    Garcia-Arribas, Alfredo
    Muela, Alicia
    Luisa Fdez-Gubieda, M.
    Valencia, Sergio
    ACS NANO, 2022, 16 (05) : 7398 - 7408
  • [44] Individual variation in macronutrient regulation measured by proton magnetic resonance spectroscopy of human plasma
    Park, Youngja
    Kim, Seoung Bum
    Wang, Bing
    Blanco, Roberto A.
    Le, Ngoc-Anh
    Wu, Shaoxiong
    Accardi, Carolyn J.
    Alexander, R. Wayne
    Ziegler, Thomas R.
    Jones, Dean P.
    AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 2009, 297 (01) : R202 - R209
  • [45] Influence of variable thermal conductivity and dissipation on magnetic Carreau fluid flow along a micro-cantilever sensor in a squeezing regime
    Muhammed, Rafeek K., V
    Basha, Hussain
    Reddy, G. Janardhana
    Shankar, Usha
    Beg, O. Anwar
    WAVES IN RANDOM AND COMPLEX MEDIA, 2022,
  • [46] Controlling magnetic moment and its fluctuations in individual semimagnetic quantum dots with different exchange interactions
    Dorozhkin, PS
    Kulakovskii, VD
    Chernenko, AV
    Brichkin, AS
    Ivanov, SV
    Toropov, AA
    APPLIED PHYSICS LETTERS, 2005, 86 (06) : 1 - 3
  • [47] Analysis of cerebral hemodynamic fluctuations measured simultaneously by magnetic resonance imaging and near-infrared spectroscopy
    Toronov, V
    Wolf, M
    Michalos, A
    Gratton, E
    Webb, A
    Hueber, D
    Fantini, S
    BIOMEDICAL TOPICAL MEETINGS, TECHNICAL DIGEST, 2000, 38 : 461 - 463
  • [48] Individual Test Point Fluctuations of Macular Sensitivity in Healthy Eyes and Eyes With Age-Related Macular Degeneration Measured With Microperimetry
    Salgueiro Barboni, Mirella Telles
    Szepessy, Zsuzsanna
    Ventura, Dora Fix
    Nemeth, Janos
    TRANSLATIONAL VISION SCIENCE & TECHNOLOGY, 2018, 7 (02):
  • [49] Two-dimensional correlation functions for density and magnetic field fluctuations in magnetosheath turbulence measured by the Cluster spacecraft
    He, J. -S.
    Marsch, E.
    Tu, C. -Y.
    Zong, Q. -G.
    Yao, S.
    Tian, H.
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2011, 116
  • [50] TIME FLUCTUATIONS OF CHARGED AND NEUTRAL COSMIC-RAY COMPONENT FLUXES AS MEASURED IN THE REGION OF THE BRAZILIAN MAGNETIC ANOMALY
    BAZILEVSKAYA, GA
    BUIVAN, NA
    KVASHNIN, AN
    MARTIN, IM
    MIZIN, SV
    PODGORNY, AI
    STOZHKOV, YI
    TURTELLI, A
    NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS, 1994, 17 (02): : 223 - 235
12345