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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 ...
  • Tielrooij, K. J.; Ferrier, A.; Badioli, M.; Navickaite, G.; Coop, S.; Nanot, S.; Kalinic, B.; Cesca, T.; Gaudreau, L.; Centeno, A.; Pesquera, A.; Zurutuza, A.; de Riedmatten, H.; Goldner, P.; Koppens, Frank Henricus Louis; Orona, Lucas; Ma, Qiong; Jarillo-Herrero, Pablo; Garcia de Abajo, F. J. (Nature Publishing Group, 2015-01)
    Controlling the energy flow processes and the associated energy relaxation rates of a light emitter is of fundamental interest and has many applications in the fields of quantum optics, photovoltaics, photodetection, ...
  • 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 Matthew; 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 W. H.; 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, D.; 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 ...
  • Ma, Qiong; Jarillo-Herrero, Pablo; Tielrooij, K. J.; Massicotte, M.; Piatkowski, L.; Woessner, A.; van Hulst, N. F.; Koppens, Frank Henricus Louis (IOP Publishing, 2015-04)
    Photoexcitation of graphene leads to an interesting sequence of phenomena, some of which can be exploited in optoelectronic devices based on graphene. In particular, the efficient and ultrafast generation of an electron ...
  • 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, Brian 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, David; Sie, Edbert Jarvis; Steinberg, Hadar; Gardner, Dillon Richard; Lee, Young 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 ...
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