Results 81 to 90 of about 7,029,328 (321)

Flow to strong coupling in the two-dimensional Hubbard model

, 2002
We extend the analysis of the renormalization group flow in the two-dimensional Hubbard model close to half-filling using the recently developed temperature flow formalism.
Honerkamp, C., Rice, T. M., Salmhofer, M.   +2 more
core   +1 more source

Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP [PDF]

, 2015
The Weyl semimetal NbP was found to exhibit topological Fermi arcs and exotic magnetotransport properties. Here, we report on magnetic quantum-oscillation measurements on NbP and construct the three-dimensional Fermi surface with the help of band ...
J. Klotz, Shu-chun Wu, C. Shekhar, Yan Sun, M. Schmidt, M. Nicklas, M. Baenitz, M. Uhlarz, J. Wosnitza, C. Felser, Binghai Yan   +10 more
semanticscholar   +1 more source

Observation of Chiral Fermions with a Large Topological Charge and Associated Fermi-Arc Surface States in CoSi. [PDF]

Physical Review Letters, 2018
Topological semimetals materialize a new state of quantum matter where massless fermions protected by a specific crystal symmetry host exotic quantum phenomena.
D. Takane, Zhiwei Wang, S. Souma, K. Nakayama, Takechika Nakamura, Hikaru Oinuma, Y. Nakata, H. Iwasawa, C. Cacho, Timur K. Kim, K. Horiba, H. Kumigashira, Takashi Takahashi, Y. Ando, Takafumi Sato   +14 more
semanticscholar   +1 more source

Effects of Temperature Annealing on the Intrinsic Transport Mechanisms of Solution Processed Graphene Nanosheet Networks

Advanced Functional Materials, EarlyView.
Unravelling charge transport mechanisms in graphene nanosheet networks: by combining temperature‐dependent conductivity measurements with a Random Resistor Network model, this study identifies a transition from hopping‐dominated conduction to a band‐like transport mechanism.
Alessandro Grillo, Alejandro Toral‐Lopez, Damiano Marian, Aniello Pelella, Zixing Peng, Jingjing Wang, Enver Faella, Maurizio Passacantando, Antonio Di Bartolomeo, Gianluca Fiori   +9 more
wiley   +1 more source

Life on the edge: a beginner’s guide to the Fermi surface

, 2016
The concept of the Fermi surface is at the very heart of our understanding of the metallic state. Displaying intricate and often complicated shapes, the Fermi surfaces of real metals are both aesthetically beautiful and subtly powerful.
S. Dugdale
semanticscholar   +1 more source

Enhancing Indoor Photovoltaic Efficiency to 37.6% Through Triple Passivation Reassembly and n‐Type to p‐Type Modulation in Wide Bandgap Perovskites

Advanced Functional Materials, EarlyView.
Triple Passivation Treatment (TPT) strategy enables 1.75 eV wide‐bandgap perovskite solar cells (WB‐PSCs) with suppressed halide phase segregation and n‐to‐p type surface transition. The photoluminescence quantum yield increases from 0.5 to 2.1%, indicating reduced non‐radiative losses.
Siming Huang, Shanyue Hou, Galyam Sanfo, Jingdong Xu, Yuting Wang, Himal Muwanwella, Lukas Pfeifer, Xiang Liu, Shaik M Zakeeruddin, Yuelong Huang, Michael Grätzel, Muhammad Tariq Sajjad, Mojtaba Abdi‐Jalebi   +12 more
wiley   +1 more source

Parquet solution for a flat Fermi surface

, 1996
We study instabilities occurring in the electron system whose Fermi surface has flat regions on its opposite sides. Such a Fermi surface resembles Fermi surfaces of some high-$T_c$ superconductors.
A. A. Abrikosov, A. A. Abrikosov, A. A. Nersesyan, A. H. Castro Neto, A. H. Castro Neto, A. H. Castro Neto, A. Houghton, A. Houghton, A. Houghton, A. Luther, A. Luther, A. Virosztek, Anatoley T. Zheleznyak, B. G. Levi, B. Halperin, B. Roulet, C. N. Yang, D. C. Mattis, D. J. Scalapino, D. J. Scalapino, D. S. Dessau, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, E. M. Lifshitz, F. D. M. Haldane, F. D. M. Haldane, G. Kotliar, G. T. Zimanyi, H. J. Schulz, H. J. Schulz, H.-J. Kwon, H.-J. Kwon, I. Affleck, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, I. T. Diatlov, Igor E. Dzyaloshinskii, J. Ruvalds, J. Solyom, L. P. Gor'kov, M. Pernici, P. A. Lee, P. B. Wiegmann, P. Kopietz, P. Kopietz, P. Kopietz, P. Nozières, P. W. Anderson, R. A. Klemm, R. Hlubina, R. Shankar, S. A. Brazovskii, S. A. Brazovskii, S. A. Brazovskii, V. M. Yakovenko, V. M. Yakovenko, V. M. Yakovenko, V. N. Prigodin, V. V. Sudakov, Victor M. Yakovenko, Y. A. Bychkov, Y. M. Li, Yu. A. Firsov, Z.-X. Shen   +71 more
core   +1 more source

Hall effect and Fermi surface reconstruction via electron pockets in the high-Tc cuprates [PDF]

, 2015
The mechanism by which the Fermi surface of high-Tc cuprates undergoes a dramatic change from a large hole-like barrel to small arcs or pockets on entering the pseudogap phase remains a question of fundamental importance.
J. Storey
semanticscholar   +1 more source

Vanadium Doped Magnetic MoS2 Monolayers of Improved Electrical Conductivity as Spin‐Orbit Torque Layer

Advanced Functional Materials, EarlyView.
Electrically conductive and room temperature magnetic atomically thin (≈0.8 nm) vanadium doped MoS2 (V‐MoS2) is demonstrated for its spintronic applications. Here, the spin transport at the interface of permalloy (Py) and high spin‐orbit coupling V‐MoS2 magnetic monolayers is shown.
Krishna Rani Sahoo, Manoj Talluri, Dipak Maity, Suman Mundlia, Ashique Lal, M. S. Devapriya, Arabinda Haldar, Chandrasekhar Murapaka, Tharangattu N. Narayanan   +8 more
wiley   +1 more source

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

Advanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs, Charalampos Drivas, Arthur Graf, Sasha Kroon, Santosh Kumar, Junxi Liu, Antonio Torres‐Lopez, Cameron Price, Edward Garland, Ines Lezcano‐Gonzalez, Christopher. M. A. Parlett, Vannia C. dos Santos‐Durndell, Lee J. Durndell   +12 more
wiley   +1 more source