Results 41 to 50 of about 72,047 (222)

Giant ferroelectric polarization in a bilayer graphene heterostructure

Nature Communications, 2022
Interfacial ferroelectricity may emerge in moiré superlattices. Here, the authors find that the polarized charge is much larger than the capacity of the moiré miniband and the associated anomalous screening exists outside the band.
Ruirui Niu, Zhuoxian Li, Xiangyan Han, Zhuangzhuang Qu, Dongdong Ding, Zhiyu Wang, Qianling Liu, Tianyao Liu, Chunrui Han, Kenji Watanabe, Takashi Taniguchi, Menghao Wu, Qi Ren, Xueyun Wang, Jiawang Hong, Jinhai Mao, Zheng Han, Kaihui Liu, Zizhao Gan, Jianming Lu   +19 more
doaj   +1 more source

Emerging Characteristics and Properties of Moiré Materials

Nanomaterials, 2023
In recent years, scientists have conducted extensive research on Moiré materials and have discovered some compelling properties. The Moiré superlattice allows superconductivity through flat-band and strong correlation effects.
Shaofeng Wang, Jizhe Song, Mengtao Sun, Shuo Cao   +3 more
doaj   +1 more source

Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers [PDF]

, 2018
We investigate the optical properties of spin-triplet interlayer excitons in heterobilayer transition metal dichalcogenides in comparison with the spin-singlet ones.
Liu, Gui-Bin, Yao, Wang, Yu, Hongyi
core   +2 more sources

Spatially resolved electronic structure of twisted graphene [PDF]

, 2017
We have used scanning tunneling microscopy and spectroscopy to resolve the spatial variation of the density of states of twisted graphene layers on top of a highly oriented pyrolytic graphite substrate.
Bampoulis, Pantelis, de Boeij, Paul L., Haartsen, Sebastiaan, Slotman, Guus J., Sotthewes, Kai, van Bremen, Rik, van Houselt, Arie, Yao, Qirong, Yuan, Shengjun, Zandvliet, Harold J. W., Zhang, Lijie   +10 more
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Kitaev spin-orbital bilayers and their moiré superlattices

npj Quantum Materials, 2023
We determine the phase diagram of a bilayer, Yao-Lee spin-orbital model with inter-layer interactions (J), for several stackings and moiré superlattices. For AA stacking, a gapped $${{\mathbb{Z}}}_{2}$$ Z 2 quantum spin liquid phase emerges at a finite J
Emilian Marius Nica, Muhammad Akram, Aayush Vijayvargia, Roderich Moessner, Onur Erten   +4 more
doaj   +1 more source

Excess resistivity in graphene superlattices caused by umklapp electron-electron scattering [PDF]

, 2018
Umklapp processes play a fundamental role as the only intrinsic mechanism that allows electrons to transfer momentum to the crystal lattice and, therefore, provide a finite electrical resistance in pure metals.
Aleiner, I. L., Auton, G. H., Birkbeck, J., Fal'ko, V. I., Geim, A. K., Holwill, M., Kumar, R. Krishna, Mishchenko, A., Novoselov, K. S., Ponomarenko, L. A., Taniguchi, T., Wallbank, J. R., Wang, Z., Watanabe, K.   +13 more
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Bulk valley transport and Berry curvature spreading at the edge of flat bands

, 2020
2D materials based superlattices have emerged as a promising platform to modulate band structure and its symmetries. In particular, moir\'e periodicity in twisted graphene systems produces flat Chern bands. The recent observation of anomalous Hall effect
Adak, Pratap Chandra, Chittari, Bheema Lingam, Deshmukh, Mandar M., Jung, Jeil, Kanthi, R. S. Surya, Sangani, L. D. Varma, Sinha, Subhajit, Taniguchi, Takashi, Watanabe, Kenji   +8 more
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Moiré superlattices in strained graphene-gold hybrid nanostructures [PDF]

, 2016
Graphene-metal nanoparticle hybrid materials potentially display not only the unique properties of metal nanoparticles and those of graphene, but also additional novel properties due to the interaction between graphene and nanoparticles. This study shows
Biró, László Péter, Hwang, Chanyong, Molnár, György, Osváth, Zoltán, Pálinkás, András, Szendrő, Márton, Süle, Péter   +6 more
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Scanning tunneling microscopy identification of van Hove singularities and negative thermal expansion in highly oriented pyrolytic graphite with hexagonal moiré superlattices

Carbon Trends, 2021
We report a novel investigation on the structural, electronic and magnetic properties of highly-oriented-pyrolytic-graphite (HOPG) by employing STM/S, TEM and SQUID.
Filippo S. Boi, Ayoub Taallah, Shuai Gao, Jian Guo, Shanling Wang, Anna Corrias   +5 more
doaj   +1 more source

Strong interface-induced spin-orbit coupling in graphene on WS2 [PDF]

, 2015
Interfacial interactions allow the electronic properties of graphene to be modified, as recently demonstrated by the appearance of satellite Dirac cones in the band structure of graphene on hexagonal boron nitride (hBN) substrates.
Agashe, K, Aielli, G, Amsler, C, Anderson, J, Antonelli, M, Asner, DM, Baer, H, Banerjee, Sw, Barnett, RM, Basaglia, T, Bauer, CW, Beatty, JJ, Belousov, VI, Beringer, J, Bethke, S, Bichsel, H, Biebel, O, Blucher, E, Brooijmans, G, Buchmueller, O, Burkert, V, Bychkov, MA, Cahn, RN, Carena, M, Ceccucci, A, Cerri, A, Chakraborty, D, Chen, M-C, Chivukula, RS, Copic, K, Cowan, G, D'Ambrosio, G, D'Onofrio, M, Dahl, O, Damour, T, de Florian, D, de Gouvea, A, de Jong, P, DeGrand, T, Dissertori, G, Dobrescu, BA, Doser, M, Drees, M, Dreiner, HK, Dwyer, DA, Eerola, P, Eidelman, S, Ellis, J, Erler, J, Ezhela, VV, Fetscher, W, Fields, BD, Foster, B, Freitas, A, Gallagher, H, Garren, L, Gerber, H-J, Gerbier, G, Gershon, T, Gherghetta, T, Godizov, AA, Goodman, M, Grab, C, Griso, S Pagan, Gritsan, AV, Grojean, C, Groom, DE, Grp, Particle Data, Gruenewald, M, Gurtu, A, Gutsche, T, Haber, HE, Hagiwara, K, Hanhart, C, Harper, G, Hashimoto, S, Hayato, Y, Hayes, KG, Hebecker, A, Heltsley, B, Hernandez-Rey, JJ, Hikasa, K, Hisano, J, Hoecker, A, Holder, J, Holtkamp, A, Huston, J, Hyodo, T, Irwin, K, Jackson, JD, Johnson, KF, Kado, M, Karliner, M, Katz, UF, Klein, SR, Klempt, E, Kowalewski, RV, Krauss, F, Kreps, M, Krusche, B, Kuyanov, Yu V, Kwon, Y, Lahav, O, Laiho, J, Langacker, P, Liddle, A, Ligeti, Z, Lin, C-J, Lippmann, C, Liss, TM, Littenberg, L, Lugovsky, KS, Lugovsky, SB, Lugovsky, VS, Lusiani, A, Makida, Y, Maltoni, F, Mannel, T, Manohar, AV, Marciano, WJ, Martin, AD, Masoni, A, Matthews, J, Meissner, U-G, Milstead, D, Mitchell, RE, Molaro, P, Monig, K, Moortgat, F, Mortonson, MJ, Murayama, H, Nakamura, K, Narain, M, Nason, P, Navas, S, Neubert, M, Nevski, P, Nir, Y, Olive, KA, Parsons, J, Patrignani, C, Peacock, JA, Pennington, M, Petcov, ST, Petrov, VA, Piepke, A, Pomarol, A, Quadt, A, Raby, S, Rademacker, J, Raffelt, G, Ratcliff, BN, Richardson, P, Ringwald, A, Roesler, S, Rolli, S, Romaniouk, A, Rosenberg, LJ, Rosner, JL, Rybka, G, Ryutin, RA, Sachrajda, CT, Sakai, Y, Salam, GP, Sarkar, S, Sauli, F, Schaffner, P, Schneider, O, Scholberg, K, Schwartz, AJ, Scott, D, Sharma, V, Sharpe, SR, Shutt, T, Silari, M, Sjostrand, T, Skands, P, Skwarnicki, T, Smith, JG, Smoot, GF, Spanier, S, Spieler, H, Spiering, C, Stahl, A, Stone, SL, Sumino, Y, Sumiyoshi, T, Syphers, MJ, Takahashi, F, Tanabashi, M, Terashi, K, Terning, J, Thorne, RS, Tiator, L, Titov, M, Tkachenko, NP, Tornqvist, NA, Tovey, D, Valencia, G, Van de Water, R, Varelas, N, Venanzoni, G, Vincter, MG, Vogel, P, Vogt, A, Wakely, SP, Walkowiak, W, Walter, CW, Wands, D, Ward, DR, Wascko, MO, Weiglein, G, Weinberg, DH, Weinberg, EJ, White, M, Wiencke, LR, Wiliocq, S, Wohl, CC, Wolfenstein, L, Womersley, J, Woody, CL, Workman, RL, Yao, W-M, Zeller, GP, Zenin, OV, Zhu, R-Y, Zimmermann, F, Zyla, PA   +227 more
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