Results 1 to 10 of about 7,151,261 (281)

Fermi surface tomography [PDF]

Nature Communications, 2022
The Fermi surface is related to the energy distribution of electrons in a solid, and governs physical properties of metals and semiconductors. A new type of angle-resolved photoemission spectroscopy, probing the Fermi surface and combining short ...
Sergey Borisenko, Alexander Fedorov, Andrii Kuibarov, Marco Bianchi, Volodymyr Bezguba, Paulina Majchrzak, Philip Hofmann, Peter Baumgärtel, Vladimir Voroshnin, Yevhen Kushnirenko, Jaime Sánchez-Barriga, Andrei Varykhalov, Ruslan Ovsyannikov, Igor Morozov, Saicharan Aswartham, Oleh Feia, Luminita Harnagea, Sabine Wurmehl, Alexander Kordyuk, Alexander Yaresko, Helmuth Berger, Bernd Büchner   +21 more
doaj   +8 more sources

Quasi-2D Fermi surface in the anomalous superconductor UTe2 [PDF]

Nature Communications, 2023
The heavy fermion paramagnet UTe2 exhibits numerous characteristics of spin-triplet superconductivity. Efforts to understand the microscopic details of this exotic superconductivity have been impeded by uncertainty regarding the underlying electronic ...
A. G. Eaton, T. I. Weinberger, N. J. M. Popiel, Z. Wu, A. J. Hickey, A. Cabala, J. Pospíšil, J. Prokleška, T. Haidamak, G. Bastien, P. Opletal, H. Sakai, Y. Haga, R. Nowell, S. M. Benjamin, V. Sechovský, G. G. Lonzarich, F. M. Grosche, M. Vališka   +18 more
doaj   +4 more sources

Soft Fermi Surfaces and Breakdown of Fermi Liquid Behavior [PDF]

Phys. Rev. Lett. 91, 066402 (2003), 2003
Electron-electron interactions can induce Fermi surface deformations which break the point-group symmetry of the lattice structure of the system. In the vicinity of such a "Pomeranchuk instability" the Fermi surface is easily deformed by anisotropic perturbations, and exhibits enhanced collective fluctuations.
D. Rohe, H. Yamase, H. Yamase, H. Yamase, I. J. Pomeranchuk, J. A. Hertz, P. A. Frigeri, S. Andergassen, W. Metzner   +8 more
arxiv   +7 more sources

Super-geometric electron focusing on the hexagonal Fermi surface of PdCoO2 [PDF]

Nature Communications, 2019
Ballistic electron beams in clean metals can be focused by passing currents through well designed contraptions, which is mostly done in isotropic materials described by a circular Fermi surface.
Maja D. Bachmann, Aaron L. Sharpe, Arthur W. Barnard, Carsten Putzke, Markus König, Seunghyun Khim, David Goldhaber-Gordon, Andrew P. Mackenzie, Philip J. W. Moll   +8 more
doaj   +4 more sources

Weak magnetism and non-Fermi liquids near heavy-fermion critical points [PDF]

Physical Review B 69, 035111 (2004), 2003
This paper is concerned with the weak-moment magnetism in heavy-fermion materials and its relation to the non-Fermi liquid physics observed near the transition to the Fermi liquid. We explore the hypothesis that the primary fluctuations responsible for the non-Fermi liquid physics are those associated with the destruction of the large Fermi surface of ...
A. Schröder, A.J. Millis, A.J. Millis, B.L. Altshuler, B.L. Altshuler, C. Dasgupta, D.M. Newns, E. Demler, E. Fradkin, E.H. Lieb, F.H.L. Essler, G. Misguich, G.G. Lonzarich, G.R. Stewart, H.v. Löhneysen, J.A. Hertz, K. Damle, L. Balents, L. Ioffe, L.B. Ioffe, M. Oshikawa, M.P.A. Fisher, M.T. Béal-Monod, M.Yu. Reizer, Matthias Vojta, N. Andrei, N. Nagaosa, N. Nagaosa, N. Read, N. Read, N.E. Bonesteel, O.I. Motrunich, P. Coleman, P. Coleman, P. Gegenwart, P. Sun, P.A. Lee, P.B. Weichman, Q. Si, Q. Si, Rosch, S. Burdin, S. Doniach, S. Sachdev, Subir Sachdev, T. Holstein, T. Moriya, T. Senthil, T. Senthil, T. Senthil, T. Senthil, X.-G. Wen, X.-G. Wen, Y.-B. Kim, Yu. Kagan   +54 more
arxiv   +3 more sources

FermiSurfer: Fermi-surface viewer providing multiple representation schemes [PDF]

Comp. Phys. Commun. 239, 197 (2019), 2018
FermiSurfer is a newly developed Fermi-surface viewer designed to facilitate the understanding of the physical properties of metals. It can display the Fermi surfaces of a material, color plots of arbitrary $k$-dependent quantities, the Fermi surface at arbitrary cross sections (Fermi lines), cross- or parallel- eye three-dimensional stereogram views ...
M. Kawamura
arxiv   +3 more sources

Nonlinear magnetotransport shaped by Fermi surface topology and convexity. [PDF]

Nat Commun, 2019
The nature of Fermi surface defines the physical properties of conductors and many physical phenomena can be traced to its shape. Although the recent discovery of a current-dependent nonlinear magnetoresistance in spin-polarized non-magnetic materials ...
He P, Hsu CH, Shi S, Cai K, Wang J, Wang Q, Eda G, Lin H, Pereira VM, Yang H.   +9 more
europepmc   +3 more sources

Friedel oscillations due to Fermi arcs in Weyl semimetals [PDF]

Phys. Rev. B 86, 195102 (2012), 2012
Weyl semimetals harbor unusual surface states known as Fermi arcs, which are essentially disjoint segments of a two dimensional Fermi surface. We describe a prescription for obtaining Fermi arcs of arbitrary shape and connectivity by stacking alternate two dimensional electron and hole Fermi surfaces and adding suitable interlayer coupling.
A. Kitaev, G. Volovik, Pavan Hosur
arxiv   +3 more sources

The Lattice Fermi Surface [PDF]

Nuclear Physics A, 2001
The Nambu - Jona-Lasinio model in 2+1 dimensions is simulated for non-zero baryon chemical potential with a diquark source term. No evidence for a BCS condensate or gap is seen at high density; rather, critical behaviour with novel exponents is observed,
Hands, Simon
core   +6 more sources

Perturbative non-Fermi liquids from dimensional regularization [PDF]

Phys. Rev. B 88, 245106 (2013), 2013
We devise a dimensional regularization scheme for quantum field theories with Fermi surface to study scaling behaviour of non-Fermi liquid states in a controlled approximation. Starting from a Fermi surface in two space dimensions, the co-dimension of Fermi surface is extended to a general value while the dimension of Fermi surface is fixed. When Fermi
Dalidovich, Denis, Lee, Sung-Sik
arxiv   +3 more sources