Solid-state dewetting of magnetic binary multilayer thin films

被引:29
作者
Esterina, Ria [1 ]
Liu, X. M. [2 ]
Adeyeye, A. O. [1 ,2 ]
Ross, C. A. [1 ,3 ]
Choi, W. K. [1 ,2 ]
机构
[1] Singapore MIT Alliance, Adv Mat Micro & Nanosyst, Singapore 117576, Singapore
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
关键词
SELF-DIFFUSION; CAPILLARY INSTABILITIES; ROOM-TEMPERATURE; NANOPARTICLES; COBALT; OXIDATION; ARRAYS; ENERGY; AIR; PD;
D O I
10.1063/1.4932565
中图分类号
O59 [应用物理学];
学科分类号
摘要
We examined solid-state dewetting behavior of magnetic multilayer thin film in both miscible (CoPd) and immiscible (CoAu) systems and found that CoPd and CoAu dewetting stages follow that of elemental materials. We established that CoPd alloy morphology and dewetting rate lie in between that of the elemental materials. Johnson-Mehl-Avrami analysis was utilized to extract the dewetting activation energy of CoPd. For CoAu, Au-rich particles and Co-rich particles are distinguishable and we are able to predict the interparticle spacings and particle densities for the particles that agree well with the experimental results. We also characterized the magnetic properties of CoPd and CoAu nanoparticles. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:11
相关论文
共 60 条
[1]   SURFACE MAGNETISM IN IRON, COBALT, AND NICKEL [J].
ALDEN, M ;
MIRBT, S ;
SKRIVER, HL ;
ROSENGAARD, NM ;
JOHANSSON, B .
PHYSICAL REVIEW B, 1992, 46 (10) :6303-6312
[2]   Phase transformations in Au(Fe) nano- and microparticles obtained by solid state dewetting of thin Au-Fe bilayer films [J].
Amram, D. ;
Klinger, L. ;
Rabkin, E. .
ACTA MATERIALIA, 2013, 61 (14) :5130-5143
[3]   Anisotropic hole growth during solid-state dewetting of single-crystal Au-Fe thin films [J].
Amram, D. ;
Klinger, L. ;
Rabkin, E. .
ACTA MATERIALIA, 2012, 60 (6-7) :3047-3056
[4]   Surface Ostwald-ripening and evaporation of gold beaded films on sapphire [J].
Beszeda, I ;
Gontier-Moya, EG ;
Imre, AW .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 81 (04) :673-677
[5]   Investigation of mass transfer surface self-diffusion on palladium [J].
Beszeda, I ;
Gontier-Moya, EG ;
Beke, DL .
SURFACE SCIENCE, 2003, 547 (1-2) :229-238
[6]  
Binns C., 2010, INTRO NANOSCIENCE NA, P176
[7]   FERROMAGNETISM IN DILUTE SOLUTIONS OF COBALT IN PALLADIUM [J].
BOZORTH, RM ;
DAVIS, DD ;
WOLFF, PA ;
WERNICK, JH ;
COMPTON, VB .
PHYSICAL REVIEW, 1961, 122 (04) :1157-&
[8]   CORRELATIONS FOR DIFFUSION CONSTANTS [J].
BROWN, AM ;
ASHBY, MF .
ACTA METALLURGICA, 1980, 28 (08) :1085-1101
[9]   ISOTOPE EFFECT AND SELF-DIFFUSION IN FACE-CENTERED CUBIC COBALT [J].
BUSSMANN, W ;
HERZIG, C ;
REMPP, W ;
MAIER, K ;
MEHRER, H .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1979, 56 (01) :87-97
[10]   Broadband Enhancement in Thin-Film Amorphous Silicon Solar Cells Enabled by Nucleated Silver Nanoparticles [J].
Chen, Xi ;
Jia, Baohua ;
Saha, Jhantu K. ;
Cai, Boyuan ;
Stokes, Nicholas ;
Qiao, Qi ;
Wang, Yongqian ;
Shi, Zhengrong ;
Gu, Min .
NANO LETTERS, 2012, 12 (05) :2187-2192