Results 1 to 10 of about 7,029,328 (321)

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

Nat Commun, 2023
A. G. Eaton et al. directly probe the Fermi surface of the candidate triplet superconductor UTe2 by measuring magnetic quantum oscillations in ultra-pure crystals.
Eaton AG, Weinberger TI, Popiel NJM, Wu Z, Hickey AJ, Cabala A, Pospíšil J, Prokleška J, Haidamak T, Bastien G, Opletal P, Sakai H, Haga Y, Nowell R, Benjamin SM, Sechovský V, Lonzarich GG, Grosche FM, Vališka M.   +18 more
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Fermi surface tomography. [PDF]

Nat Commun, 2022
AbstractFermi surfaces are essential for predicting, characterizing and controlling the properties of crystalline metals and semiconductors. Angle-resolved photoemission spectroscopy (ARPES) is the only technique directly probing the Fermi surface by measuring the Fermi momenta (kF) from energy- and angular distribution of photoelectrons dislodged by ...
Borisenko S, Fedorov A, Kuibarov A, Bianchi M, Bezguba V, Majchrzak P, Hofmann P, Baumgärtel P, Voroshnin V, Kushnirenko Y, Sánchez-Barriga J, Varykhalov A, Ovsyannikov R, Morozov I, Aswartham S, Feia O, Harnagea L, Wurmehl S, Kordyuk A, Yaresko A, Berger H, Büchner B.   +21 more
europepmc   +8 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
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Super-geometric electron focusing on the hexagonal Fermi surface of PdCoO₂. [PDF]

Nat Commun, 2019
Geometric electron optics may be implemented in solids when electron transport is ballistic on the length scale of a device. Currently, this is realized mainly in 2D materials characterized by circular Fermi surfaces.
Bachmann MD, Sharpe AL, Barnard AW, Putzke C, König M, Khim S, Goldhaber-Gordon D, Mackenzie AP, Moll PJW.   +8 more
europepmc   +3 more sources

Extent of Fermi-surface reconstruction in the high-temperature superconductor HgBa₂CuO_4+δ. [PDF]

Proc Natl Acad Sci U S A, 2020
High magnetic fields have revealed a surprisingly small Fermi-surface in underdoped cuprates, possibly resulting from Fermi-surface reconstruction due to an order parameter that breaks translational symmetry of the crystal lattice.
Chan MK, McDonald RD, Ramshaw BJ, Betts JB, Shekhter A, Bauer ED, Harrison N.   +6 more
europepmc   +2 more sources

Anomalous Chiral Fermi Surface

Physical Review Letters, 2012
We provide a geometrical argument for the emergence of a Wess-Zumino-Witten (WZW) term for a Fermi surface threaded by a Berry curvature. In the presence of external fields, the gauged WZW term yields a chiral (triangle) anomaly for the fermionic current
A. S. Gorsky, G. E. Volovik, Ismail Zahed, M. A. Nowak   +3 more
core   +5 more sources

Quantum chaos on a critical Fermi surface. [PDF]

Proc Natl Acad Sci U S A, 2017
Significance All high-temperature superconductors exhibit a remarkable “strange metal” state above their critical temperatures. A theory of the strange metal is a prerequisite for a deeper understanding of high-temperature superconductivity, but the ...
Patel AA, Sachdev S.
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Pseudogap phase of cuprate superconductors confined by Fermi surface topology. [PDF]

Nat Commun, 2017
The properties of cuprate high-temperature superconductors are largely shaped by competing phases whose nature is often a mystery. Chiefly among them is the pseudogap phase, which sets in at a doping p* that is material-dependent.
Doiron-Leyraud N, Cyr-Choinière O, Badoux S, Ataei A, Collignon C, Gourgout A, Dufour-Beauséjour S, Tafti FF, Laliberté F, Boulanger ME, Matusiak M, Graf D, Kim M, Zhou JS, Momono N, Kurosawa T, Takagi H, Taillefer L.   +17 more
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Fermi surface topology and magnetotransport in semimetallic LuSb. [PDF]

Sci Rep, 2017
Several rare-earth monopnictides were shown to exhibit extreme magnetoresistance and field-induced low-temperature plateau of electrical resistivity. These features are also hallmarks of topological semimetals, thus the family is intensively explored ...
Pavlosiuk O, Kleinert M, Swatek P, Kaczorowski D, Wiśniewski P.   +4 more
europepmc   +2 more sources

Butterfly magnetoresistance, quasi-2D Dirac Fermi surface and topological phase transition in ZrSiS. [PDF]

Sci Adv, 2016
An unusual angle-dependent topological phase transition and butterfly magnetoresistance were found in the Dirac semimetal ZrSiS. Magnetoresistance (MR), the change of a material’s electrical resistance in response to an applied magnetic field, is a ...
Ali MN, Schoop LM, Garg C, Lippmann JM, Lara E, Lotsch B, Parkin SS.   +6 more
europepmc   +3 more sources