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Browsing MIT Open Access Articles by Author "Jarillo-Herrero, Pablo"

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Browsing MIT Open Access Articles by Author "Jarillo-Herrero, Pablo"

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  • Campos, Leonardo; Manfrinato, Vitor Riseti; Sanchez-Yamagishi, Javier D.; Kong, Jing; Jarillo-Herrero, Pablo (American Chemical Society, 2009-07)
    We demonstrate anisotropic etching of single-layer graphene by thermally activated nickel nanoparticles. Using this technique, we obtain sub-10-nm nanoribbons and other graphene nanostructures with edges aligned along a ...
  • Taychatanapat, Thiti; Wang, Han; Hsu, Allen Long; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo; Palacios, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2011-08)
    In this letter, we demonstrate the first BN/graphene/BN field-effect transistor for RF applications. This device structure can preserve the high mobility and the high carrier velocity of graphene, even when it is sandwiched ...
  • Ma, Qiong; Gabor, Nathaniel M.; Nair, Nityan L.; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo; Andersen, Trond (American Physical Society, 2014-06)
    We report on temperature-dependent photocurrent measurements of high-quality dual-gated monolayer graphene p−n junction devices. A photothermoelectric effect governs the photocurrent response in our devices, allowing us ...
  • McIver, J. W.; Hsieh, David; Steinberg, Hadar; Jarillo-Herrero, Pablo; Gedik, Nuh (Nature Publishing Group, 2011-12)
    Three-dimensional topological insulators (1-3) represent a new quantum phase of matter with spin-polarized surface states (4,5) that are protected from backscattering. The static electronic properties of these surface ...
  • Steinberg, Hadar; Laloe, Jean-Baptiste; Fatemi, Valla; Moodera, Jagadeesh; Jarillo-Herrero, Pablo (American Physical Society (APS), 2011-12)
    We study coherent electronic transport in charge-density-tunable microdevices patterned from thin films of the topological insulator (TI) Bi[subscript 2]Se[subscript 3]. The devices exhibit pronounced electric field effect, ...
  • Taychatanapat, Thiti; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo (Nature Publishing Group, 2013-02)
    Electrons in a periodic lattice can propagate without scattering for macroscopic distances despite the presence of the non-uniform Coulomb potential due to the nuclei. Such ballistic motion of electrons allows the use of ...
  • Yankowitz, Matthew; Wang, Joel I-Jan; Birdwell, A. Glen; Chen, Yu-An; Watanabe, K.; Taniguchi, T.; Jacquod, Philippe; San-Jose, Pablo; Jarillo-Herrero, Pablo; LeRoy, Brian J. (Nature Publishing Group, 2014-04)
    The crystal structure of a material plays an important role in determining its electronic properties. Changing from one crystal structure to another involves a phase transition that is usually controlled by a state variable ...
  • Taychatanapat, Thiti; Jarillo-Herrero, Pablo (American Physical Society, 2010-10)
    We study the electronic transport properties of dual-gated bilayer graphene devices. We focus on the regime of low temperatures and high electric displacement fields, where we observe a clear exponential dependence of the ...
  • Fatemi, Valla; Hunt, Benjamin; Steinberg, Hadar; Eltinge, Stephen L.; Mahmood, Fahad; Butch, Nicholas P.; Watanabe, Kenji; Taniguchi, Takashi; Gedik, Nuh; Jarillo-Herrero, Pablo; Ashoori, Raymond (American Physical Society, 2014-11)
    We report on electronic transport measurements of dual-gated nanodevices of the low-carrier density topological insulator (TI) Bi[subscript 1.5]Sb[subscript 0.5]Te[subscript 1.7]Se[subscript 1.3]. In all devices, the upper ...
  • Yankowitz, Matthew; Xue, Jiamin; Cormode, Daniel; Sanchez-Yamagishi, Javier; Watanabe, K.; Taniguchi, T.; Jarillo-Herrero, Pablo; Jacquod, Philippe; LeRoy, Brian J. (Nature Publishing Group, 2012-03)
    The Schrödinger equation dictates that the propagation of nearly free electrons through a weak periodic potential results in the opening of bandgaps near points of the reciprocal lattice known as Brillouin zone boundaries1. ...
  • Baugher, Britton William Herb; Jarillo-Herrero, Pablo; Lemme, Max C.; Bell, David C.; Williams, James R.; Stern, Lewis A.; Marcus, Charles M. (American Chemical Society (ACS), 2009-09)
    We report on the etching of graphene devices with a helium ion beam, including in situ electrical measurement during lithography. The etching process can be used to nanostructure and electrically isolate different regions ...
  • Wei, Peng; Katmis, Ferhat; Assaf, Badih A.; Steinberg, Hadar; Jarillo-Herrero, Pablo; Heiman, Donald; Moodera, Jagadeesh (American Physical Society, 2013-04)
    An exchange gap in the Dirac surface states of a topological insulator (TI) is necessary for observing the predicted unique features such as the topological magnetoelectric effect as well as to confine Majorana fermions. ...
  • Gabor, Nathaniel M.; Song, Justin Chien Wen; Ma, Qiong; Nair, Nityan L.; Taychatanapat, Thiti; Levitov, Leonid; Jarillo-Herrero, Pablo; Watanabe, Kenji; Taniguchi, Takashi (American Association for the Advancement of Science (AAAS), 2011-10)
    We report on the intrinsic optoelectronic response of high-quality dual-gated monolayer and bilayer graphene p-n junction devices. Local laser excitation (of wavelength 850 nanometers) at the p-n interface leads to striking ...
  • Baugher, Britton W. H.; Yang, Yafang; Jarillo-Herrero, Pablo; Churchill, Hugh Olen Hill (American Chemical Society (ACS), 2013-08)
    We report electronic transport measurements of devices based on monolayers and bilayers of the transition-metal dichalcogenide MoS[subscript 2]. Through a combination of in situ vacuum annealing and electrostatic gating ...
  • Xue, Jiamin; Watanabe, K.; Taniguchi, T.; LeRoy, Brian J.; Sanchez-Yamagishi, Javier D.; Jarillo-Herrero, Pablo (American Physical Society (APS), 2012-01)
    Using scanning tunneling microscopy and spectroscopy, we have studied the local density of states (LDOS) of graphene over step edges in boron nitride. Long-wavelength oscillations in the LDOS are observed with maxima ...
  • Yankowitz, M.; LeRoy, B. J.; Watanabe, K.; Taniguchi, T.; Moon, P.; Koshino, M.; Hunt, Benjamin Matthew; Sanchez, Javier Daniel; Young, Andrea Franchini; Jarillo-Herrero, Pablo; Ashoori, Raymond (American Association for the Advancement of Science (AAAS), 2013-05)
    van der Waals heterostructures constitute a new class of artificial materials formed by stacking atomically thin planar crystals. We demonstrated band structure engineering in a van der Waals heterostructure composed of a ...
  • Wang, Y. H.; Hsieh, D.; Sie, Edbert Jarvis; Steinberg, Hadar; Gardner, Dillon Richard; Lee, Y. S.; Jarillo-Herrero, Pablo; Gedik, Nuh (American Physical Society, 2012-09)
    We perform time- and angle-resolved photoemission spectroscopy of a prototypical topological insulator (TI) Bi[subscript 2]Se[subscript 3] to study the ultrafast dynamics of surface and bulk electrons after photoexcitation. ...
  • Wang, Y. H.; Steinberg, Hadar; Jarillo-Herrero, Pablo; Gedik, Nuh (2013-10)
    The unique electronic properties of the surface electrons in a topological insulator are protected by time-reversal symmetry. Circularly polarized light naturally breaks time-reversal symmetry, which may lead to an exotic ...
  • Frenzel, Alex James; Lui, Chun Hung; Fang, Wenjing; Nair, Nityan L.; Herring, Patrick Kenichi; Jarillo-Herrero, Pablo; Kong, Jing; Gedik, Nuh (American Institute of Physics (AIP), 2013-03)
    When light is absorbed by a semiconductor, photoexcited charge carriers enhance the absorption of far-infrared radiation due to intraband transitions. We observe the opposite behavior in monolayer graphene, a zero-gap ...
  • Baugher, Britton W. H.; Yang, Yafang; Jarillo-Herrero, Pablo; Churchill, Hugh Olen Hill (Nature Publishing Group, 2014-03)
    The p–n junction is the functional element of many electronic and optoelectronic devices, including diodes, bipolar transistors, photodetectors, light-emitting diodes and solar cells. In conventional p–n junctions, the ...
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