Search Results - "de Heer, Walt"

Room-temperature metastability of multilayer graphene oxide films by Kim, Suenne, Zhou, Si, Hu, Yike, Acik, Muge, Chabal, Yves J., Berger, Claire, de Heer, Walt, Bongiorno, Angelo, Riedo, Elisa

“…Graphene oxide potentially has multiple applications. The chemistry of graphene oxide and its response to external stimuli such as temperature and light are…”
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Large area and structured epitaxial graphene produced by confinement controlled sublimation of silicon carbide by de Heer, Walt A., Berger, Claire, Ruan, Ming, Sprinkle, Mike, Li, Xuebin, Hu, Yike, Zhang, Baiqian, Hankinson, John, Conrad, Edward

“…After the pioneering investigations into graphene-based electronics at Georgia Tech, great strides have been made developing epitaxial graphene on silicon…”
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Flat and safe under the graphene sheet by Berger, Claire, de Heer, Walt A.

“…Large-scale atomically thin metals can be stabilized through confinement epitaxy at graphene/SiC interface, which exhibit a gradient bonding type and are air…”
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Elastic coupling between layers in two-dimensional materials by Gao, Yang, Kim, Suenne, Zhou, Si, Chiu, Hsiang-Chih, Nélias, Daniel, Berger, Claire, de Heer, Walt, Polloni, Laura, Sordan, Roman, Bongiorno, Angelo, Riedo, Elisa

“…Two-dimensional materials, such as graphene and MoS 2 , are films of a few atomic layers in thickness with strong in-plane bonds and weak interactions between…”
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Microscopic origins of the terahertz carrier relaxation and cooling dynamics in graphene by Mihnev, Momchil T., Kadi, Faris, Divin, Charles J., Winzer, Torben, Lee, Seunghyun, Liu, Che-Hung, Zhong, Zhaohui, Berger, Claire, de Heer, Walt A., Malic, Ermin, Knorr, Andreas, Norris, Theodore B.

“…The ultrafast dynamics of hot carriers in graphene are key to both understanding of fundamental carrier–carrier interactions and carrier–phonon relaxation…”
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Exceptional ballistic transport in epitaxial graphene nanoribbons by Baringhaus, Jens, Ruan, Ming, Edler, Frederik, Tejeda, Antonio, Sicot, Muriel, Taleb-Ibrahimi, Amina, Li, An-Ping, Jiang, Zhigang, Conrad, Edward H., Berger, Claire, Tegenkamp, Christoph, de Heer, Walt A.

“…Nanoribbons of graphene grown on electronics-grade silicon carbide conduct electrons much better than expected; at room temperature, the charge carriers travel…”
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Non-Invasive Nanoscale Potentiometry and Ballistic Transport in Epigraphene Nanoribbons by De Cecco, Alessandro, Prudkovskiy, Vladimir S, Wander, David, Ganguly, Rini, Berger, Claire, de Heer, Walt A, Courtois, Hervé, Winkelmann, Clemens B

“…The recent observation of non-classical electron transport regimes in two-dimensional materials has called for new high-resolution non-invasive techniques to…”
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Highly efficient spin transport in epitaxial graphene on SiC by Dlubak, Bruno, Martin, Marie-Blandine, Deranlot, Cyrile, Servet, Bernard, Xavier, Stéphane, Mattana, Richard, Sprinkle, Mike, Berger, Claire, De Heer, Walt A., Petroff, Frédéric, Anane, Abdelmadjid, Seneor, Pierre, Fert, Albert

“…Spin information processing is a possible new paradigm for post-CMOS (complementary metal-oxide semiconductor) electronics and efficient spin propagation over…”
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Chemical Modification of Epitaxial Graphene: Spontaneous Grafting of Aryl Groups by Bekyarova, Elena, Itkis, Mikhail E, Ramesh, Palanisamy, Berger, Claire, Sprinkle, Michael, de Heer, Walt A, Haddon, Robert C

“…The addition of nitrophenyl groups to the surface of few-layer epitaxial graphene (EG) by the formation of covalent carbon−carbon bonds changed the electronic…”
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Weak antilocalization in epitaxial graphene: evidence for chiral electrons by Wu, Xiaosong, Li, Xuebin, Song, Zhimin, Berger, Claire, de Heer, Walt A

“…Transport in ultrathin graphite grown on silicon carbide is dominated by the electron-doped epitaxial layer at the interface. Weak antilocalization in 2D…”
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Epitaxial graphene on silicon carbide: Introduction to structured graphene by Ming, Ruan, Hu, Yike, Guo, Zelei, Dong, Rui, Palmer, James, Hankinson, John, Berger, Claire, de Heer, Walt A.

“…We present an introduction to the rapidly growing field of epitaxial graphene on silicon carbide, tracing its development from the original proof-of-concept…”
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Electronic cooling via interlayer Coulomb coupling in multilayer epitaxial graphene by Mihnev, Momchil T., Tolsma, John R., Divin, Charles J., Sun, Dong, Asgari, Reza, Polini, Marco, Berger, Claire, de Heer, Walt A., MacDonald, Allan H., Norris, Theodore B.

“…In van der Waals bonded or rotationally disordered multilayer stacks of two-dimensional (2D) materials, the electronic states remain tightly confined within…”
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Observing the Quantization of Zero Mass Carriers in Graphene by Miller, David L, Kubista, Kevin D, Rutter, Gregory M, Ruan, Ming, de Heer, Walt A, First, Phillip N, Stroscio, Joseph A

“…Application of a magnetic field to conductors causes the charge carriers to circulate in cyclotron orbits with quantized energies called Landau levels (LLs)…”
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Record Maximum Oscillation Frequency in C‑Face Epitaxial Graphene Transistors by Guo, Zelei, Dong, Rui, Chakraborty, Partha Sarathi, Lourenco, Nelson, Palmer, James, Hu, Yike, Ruan, Ming, Hankinson, John, Kunc, Jan, Cressler, John D, Berger, Claire, de Heer, Walt A

“…The maximum oscillation frequency (f max) quantifies the practical upper bound for useful circuit operation. We report here an f max of 70 GHz in transistors…”
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Ultrafast relaxation of excited Dirac fermions in epitaxial graphene using optical differential transmission spectroscopy by Sun, Dong, Wu, Zong-Kwei, Divin, Charles, Li, Xuebin, Berger, Claire, de Heer, Walt A, First, Phillip N, Norris, Theodore B

“…We investigate the ultrafast relaxation dynamics of hot Dirac fermionic quasiparticles in multilayer epitaxial graphene using ultrafast optical differential…”
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Effect of Nitrophenyl Functionalization on the Magnetic Properties of Epitaxial Graphene by Hong, Jeongmin, Niyogi, Sandip, Bekyarova, Elena, Itkis, Mikhail E., Ramesh, Palanisamy, Amos, Nissim, Litvinov, Dmitri, Berger, Claire, de Heer, Walt A., Khizroev, Sakhrat, Haddon, Robert C.

“…Nitrophenyl functionalization of epitaxial graphene leads to the development of magnetic order as a result of the presence of disordered antiferromagnetic,…”
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Electronic Confinement and Coherence in Patterned Epitaxial Graphene by Berger, Claire, Song, Zhimin, Li, Xuebin, Wu, Xiaosong, Brown, Nate, Naud, Cécile, Mayou, Didier, Li, Tianbo, Hass, Joanna, Marchenkov, Alexei N, Conrad, Edward H, First, Phillip N, de Heer, Walt A

“…Ultrathin epitaxial graphite was grown on single-crystal silicon carbide by vacuum graphitization. The material can be patterned using standard nanolithography…”
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Carbon Nanotube Quantum Resistors by Frank, Stefan, Poncharal, Philippe, Wang, Z. L., de Heer, Walt A.

“…The conductance of multiwalled carbon nanotubes (MWNTs) was found to be quantized. The experimental method involved measuring the conductance of nanotubes by…”
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An epitaxial graphene platform for zero-energy edge state nanoelectronics by Prudkovskiy, Vladimir S., Hu, Yiran, Zhang, Kaimin, Hu, Yue, Ji, Peixuan, Nunn, Grant, Zhao, Jian, Shi, Chenqian, Tejeda, Antonio, Wander, David, De Cecco, Alessandro, Winkelmann, Clemens B., Jiang, Yuxuan, Zhao, Tianhao, Wakabayashi, Katsunori, Jiang, Zhigang, Ma, Lei, Berger, Claire, de Heer, Walt A.

“…Graphene’s original promise to succeed silicon faltered due to pervasive edge disorder in lithographically patterned deposited graphene and the lack of a new…”
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Atomic Structure of Epitaxial Graphene Sidewall Nanoribbons: Flat Graphene, Miniribbons, and the Confinement Gap by Palacio, Irene, Celis, Arlensiú, Nair, Maya N, Gloter, Alexandre, Zobelli, Alberto, Sicot, Muriel, Malterre, Daniel, Nevius, Meredith S, de Heer, Walt A, Berger, Claire, Conrad, Edward H, Taleb-Ibrahimi, Amina, Tejeda, Antonio

“…Graphene nanoribbons grown on sidewall facets of SiC have demonstrated exceptional quantized ballistic transport up to 15 μm at room temperature…”
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