Collisional effects on nonlinear ion drag force for small grains
نویسنده
چکیده
PR/v98/i6/p1632_1A. Ivlev, S. Khrapak, S. Zhdanov, G. Morfill, and G. Joyce, Physical Review Letters 92,1 (May 2004), ISSN 0031-9007, http://link.aps.org/doi/10.1103/PhysRevLett.92. 205007M. Lampe, G. Joyce, G. Ganguli, and V. Gavrishchaka, Phys. Plasmas 7, 3851 (2000),ISSN 1070664X, http://link.aip.org/link/PHPAEN/v7/i10/p3851/s1&Agg;=doiM. Lampe, G. Joyce, and G. Ganguli, IEEE Trans. Plasma Sci. 33, 57 (2005)I. H. Hutchinson, Phys. Plasmas 18, 32111 (2011)R. L. Dewar and D. Leykam, Plasma Physics and Controlled Fusion 54, 014002(Jan. 2012), ISSN 0741-3335, http://stacks.iop.org/0741-3335/54/i=1/a=014002? key=crossref.d775fa4ceed15dea2ccafe7ca3b146f6P. Ludwig, W. J. Miloch, H. Kählert, and M. Bonitz, New Journal of Physics 14, 053016(May 2012), ISSN 1367-2630, http://stacks.iop.org/1367-2630/14/i=5/a=053016I. H. Hutchinson, Physical Review Letters 107, 2 (Aug. 2011), ISSN 0031-9007, http: //link.aps.org/doi/10.1103/PhysRevLett.107.095001I. H. Hutchinson, Physical Review E 85, 1 (Jun. 2012), ISSN 1539-3755, http://link. aps.org/doi/10.1103/PhysRevE.85.066409I. H. Hutchinson, Plasma Physics and Controlled Fusion 44, 1953 (Sep. 2002),ISSN 0741-3335, http://stacks.iop.org/0741-3335/44/i=9/a=313?key=crossref. 0642ea953e906cb5fc09bd8cafcfed76I. H. Hutchinson, Plasma Physics and Controlled Fusion 45, 1477 (Aug. 2003),ISSN 0741-3335, http://stacks.iop.org/0741-3335/45/i=8/a=307?key=crossref. 3f02ffa206df98c02b0a1de95b8686e5C. K. Birdsall and A. B. Langdon, Plasma Physics via Computer Simulation (IOP Pub-lishing, Bristol, 1991)I. H. Hutchinson, Arxiv, 1105:1356(May 2011), arXiv:1105.1356, http://arxiv.org/abs/ 1105.1356S. A. Khrapak, A. V. Ivlev, G. E. Morfill, S. K. Zhdanov, and H. M. Thomas, IEEETrans. Plasma Sci. 32, 555 (Apr. 2004), ISSN 0093-3813, http://ieeexplore.ieee.org/
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