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Browsing MIT Open Access Articles by Title

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  • Ross, Caroline A.; Navas, D.; Torrejon, J.; Beron, F.; Redondo, C.; Batallan, F.; Toperverg, P.; Devishvili, A.; Sierra, B.; Castano, F.; Pirota, K. R (IOP Publishing, 2012-11)
    The magnetization reversal processes are discussed for exchange-coupled ferromagnetic hard/soft bilayers made from Co[subscript 0.66]Cr[subscript 0.22]Pt[subscript 0.12] (10 and 20 nm)/Ni (from 0 to 40 nm) films with ...
  • Ren, Yin; Jain, S.; Adeyeye, Adekunle Olusola; Ross, Caroline A. (Institute of Physics Publishing, 2010-09)
    The effects of magnetostatic and exchange coupling between two circular Ni80Fe20 rings on the magnetization reversal process and spin configuration are investigated using focused magneto-optic Kerr measurements and magnetic ...
  • Hutchinson, Ian H. (Institute of Electrical and Electronics Engineers, 2009-08)
    The interaction of magnetized plasma ions with a collecting object of arbitrary shape such as a Langmuir probe is analyzed by drift approximation. This solution provides the theoretical basis for interpreting "perpendicular" ...
  • Kim, Donghun; Bi, Lei; Jiang, Peng; Dionne, Gerald F.; Ross, Caroline A. (American Physical Society, 2011-07)
    SrTi[subscript 1−x]M[subscript x]O[subscript 3] films in which M = Fe, Co, or Cr and x=0.04–0.5 have been grown epitaxially on CeO[subscript 2]-buffered Si, SrTiO[subscript 3], and LaAlO3 substrates. Films grown in vacuum ...
  • Kharzeev, Dmitri; Rajagopal, Krishna; Gursoy, Umut (American Physical Society, 2014-05)
    The hot QCD matter produced in any heavy ion collision with a nonzero impact parameter is produced within a strong magnetic field. We study the imprint that these fields leave on the azimuthal distributions and correlations ...
  • Bauer, Uwe; Yao, Lide; Tan, Aik Jun; Agrawal, Parnika; Emori, Satoru; Tuller, Harry L.; van Dijken, Sebastiaan; Beach, Geoffrey Stephen (Nature Publishing Group, 2014-11)
    In metal/oxide heterostructures, rich chemical electronic magnetic and mechanical properties can emerge from interfacial chemistry and structure. The possibility to dynamically control interface characteristics with an ...
  • Rapoport, Elizabeth Ashera; Beach, Geoffrey Stephen (American Institute of Physics, 2012-02)
    Magnetic domain walls in ferromagnetic tracks can be used to trap and transport superparamagnetic beads for lab-on-a-chip applications. Here it is shown that the magnetostatic binding between a domain wall and a superparamagnetic ...
  • Drew, H. Dennis; Lee, Patrick A.; Colbert, Jacob Reid (American Physical Society, 2014-09)
    We propose an experiment to use the magneto-optical Faraday effect to probe the dynamic Hall conductivity of spin-liquid candidates. Theory predicts that an external magnetic field will generate an internal gauge field. ...
  • Temnov, Vasily V.; Woggon, U.; Guzatov, D.; Armelles, G.; Cebollada, A.; Garcia-Matrin, A.; Garcia-Martin, J. M.; Thomay, T.; Leitenstorfer, A.; Bratschitsch, R. (Institute of Electrical and Electronics Engineers, 2009-06)
    Modulation of the surface plasmon wave vector in composite gold/cobalt/gold multilayer films due to periodic magnetization switching in cobalt is observed with a tilted slit-groove microinterferometer.
  • Bi, Lei; Hu, Juejun; Jiang, Peng; Kim, Hyun Suk; Kim, Dong Hun; Onbasli, Mehmet Cengiz; Dionne, Gerald F.; Ross, Caroline A.; Jiang, Peng (MDPI AG, 2013-11)
    Achieving monolithic integration of nonreciprocal photonic devices on semiconductor substrates has been long sought by the photonics research society. One way to achieve this goal is to deposit high quality magneto-optical ...
  • Moodera, Jagadeesh; Muller, Martina; Miao, Guo-Xing (American Physical Society, 2009-02)
    Spin filtering happens due to the discriminative tunneling probabilities for spin-up and spin-down electrons through a magnetic barrier and can result in highly spin polarized tunnel currents. Combining two such barriers ...
  • Rich, Jason P.; Doyle, Patrick S.; McKinley, Gareth H. (Springer Science + Business Media B.V., 2012-05)
    Field-induced static and dynamic yield stresses are explored for magnetorheological (MR) suspensions in an aging, yield stress matrix fluid composed of an aqueous dispersion of Laponite® clay. Using a custom-built ...
  • Onak, Krzysztof; Rubinfeld, Ronitt (Association for Computing Machinery (ACM), 2010-06)
    We consider the problem of maintaining a large matching and a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge insertion. We give the first randomized data ...
  • Okamoto, Naoko; Yasukawa, Mami; Nguyen, Christine; Kasim, Vivi; Maida, Yoshiko; Possemato, Richard; Shibata, Tatsuhiro; Ligon, Keith L.; Fukami, Kiyoko; Hahn, William C.; Masutomi, Kenkichi (National Academy of Sciences, 2011-07)
    Recent work has identified a subset of cells resident in tumors that exhibit properties similar to those found in normal stem cells. Such cells are highly tumorigenic and may be involved in resistance to treatment. However, ...
  • Potter, Andrew Cole; Lee, Patrick A. (American Physical Society, 2011-02)
    A recent work [ Potter and Lee Phys. Rev. Lett. 105 227003 (2010)] demonstrated, for an ideal spinless p+ip superconductor, that Majorana end states can be realized outside the strict one-dimensional limit, so long as (1) ...
  • Law, Kam Tuen; Lee, Patrick A.; Ng, T. K. (American Physical Society, 2009-12)
    We describe experimental signatures of Majorana fermion edge states, which form at the interface between a superconductor and the surface of a topological insulator. If a lead couples to the Majorana fermions through ...
  • Fu, Liang; Hsieh, Timothy Hwa-wei (American Physical Society, 2012-03)
    The recently discovered superconductor CuₓBi₂Se₃ is a candidate for three-dimensional time-reversal-invariant topological superconductors, which are predicted to have robust surface Andreev bound states hosting massless ...
  • Wong, Chris L. M.; Liu, Jie; Law, K. T.; Lee, Patrick A. (American Physical Society, 2013-08)
    We show that an in-plane magnetic field can drive a fully gapped p ± ip topological superconductor into a gapless phase which supports Majorana flat bands (MFBs). Unlike previous examples, the MFBs in the gapless regime ...
  • Wilczek, Frank (Nature Publishing Group, 2012-06)
    Elusive theoretical fantasies known as Majorana modes have been observed in a hybrid semiconductor–superconductor system. These emergent exotica open up promising prospects for quantum computation.
  • Ho, Shih-Hao; Lin, Feng-Li; Wen, Xiao-Gang (Springer-Verlag, 2012-12)
    Motivated by the recent Kitaev’s K-theory analysis of topological insulators and superconductors, we adopt the same framework to study the topological phase structure of Jackiw-Rebbi model in 3+1 dimensions. According to ...
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