Electron-phonon mass-enhancement parameter and the Fermi-line eccentricity at theBe(101¯0)surface from angle-resolved photoemission

2000 ◽  
Vol 61 (19) ◽  
pp. 12709-12712 ◽  
Author(s):  
T. Balasubramanian ◽  
P.-A. Glans ◽  
L. I. Johansson
Keyword(s):  
Mass Enhancement ◽  
Fermi Line

scholarly journals Propagation of shear stress in strongly interacting metallic Fermi liquids enhances transmission of terahertz radiation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
D. Valentinis ◽  
J. Zaanen ◽  
D. van der Marel
Keyword(s):  
Shear Stress ◽  
Terahertz Radiation ◽  
Fermi Liquid ◽  
Zero Sound ◽  
Strongly Correlated Electron ◽  
Correlated Electron Systems ◽  
Correlated Electron ◽  
Collisionless Regime ◽  
Propagating Shear ◽  
Mass Enhancement

AbstractA highlight of Fermi-liquid phenomenology, as explored in neutral $$^3$$ 3 He, is the observation that in the collisionless regime shear stress propagates as if one is dealing with the transverse phonon of a solid. The existence of this “transverse zero sound” requires that the quasiparticle mass enhancement exceeds a critical value. Could such a propagating shear stress also exist in strongly correlated electron systems? Despite some noticeable differences with the neutral case in the Galilean continuum, we arrive at the verdict that transverse zero sound should be generic for mass enhancement higher than 3. We present an experimental setup that should be exquisitely sensitive in this regard: the transmission of terahertz radiation through a thin slab of heavy-fermion material will be strongly enhanced at low temperature and accompanied by giant oscillations, which reflect the interference between light itself and the “material photon” being the actual manifestation of transverse zero sound in the charged Fermi liquid.

scholarly journals Mass enhancement in 3d and s−p perovskites from symmetry breaking

2021 ◽  
Vol 103 (16) ◽  
Author(s):  
Zhi Wang ◽  
Oleksandr I. Malyi ◽  
Xingang Zhao ◽  
Alex Zunger
Keyword(s):  
Symmetry Breaking ◽  
Mass Enhancement

scholarly journals Doping Dependence of the Mass Enhancement in(Pb,Bi)2Sr2CaCu2O8at the Antinodal Point in the Superconducting and Normal States

2003 ◽  
Vol 91 (16) ◽  
Author(s):  
T. K. Kim ◽  
A. A. Kordyuk ◽  
S. V. Borisenko ◽  
A. Koitzsch ◽  
M. Knupfer ◽  
...  
Keyword(s):  
Doping Dependence ◽  
Normal States ◽  
Mass Enhancement

Determining the electron-phonon mass enhancement parameter λ on metal surfaces

2005 ◽  
Vol 80 (5) ◽  
pp. 943-949 ◽  
Author(s):  
J.E. Gayone ◽  
C. Kirkegaard ◽  
J.W. Wells ◽  
S.V. Hoffmann ◽  
Z. Li ◽  
...  
Keyword(s):  
Metal Surfaces ◽  
Mass Enhancement

scholarly journals LDA+DMFTspectral functions and effective electron mass enhancement in the superconductor LaFePO

2010 ◽  
Vol 81 (17) ◽  
Author(s):  
S. L. Skornyakov ◽  
N. A. Skorikov ◽  
A. V. Lukoyanov ◽  
A. O. Shorikov ◽  
V. I. Anisimov
Keyword(s):  
Electron Mass ◽  
Effective Electron Mass ◽  
Effective Electron ◽  
Mass Enhancement

scholarly journals Electron Mass Enhancement near a Nematic Quantum Critical Point in NaFe1−xCoxAs

2018 ◽  
Vol 121 (16) ◽  
Author(s):  
C. G. Wang ◽  
Z. Li ◽  
J. Yang ◽  
L. Y. Xing ◽  
G. Y. Dai ◽  
...  
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
Electron Mass ◽  
Quantum Critical ◽  
Mass Enhancement

ππ PRODUCTION IN PROTON-PROTON COLLISIONS

2007 ◽  
Vol 22 (02n03) ◽  
pp. 509-513 ◽  
Author(s):  
◽  
T. Skorodko ◽  
M. Bashkanov ◽  
D. Bogoslowsky ◽  
H. Calén ◽  
...  
Keyword(s):  
Pion Production ◽  
Invariant Mass Spectrum ◽  
Light Nuclei ◽  
Special Configuration ◽  
Proton Proton ◽  
Proton Collisions ◽  
Low Mass ◽  
Threshold Energies ◽  
Proton Proton Collisions ◽  
Mass Enhancement

At CELSIUS-WASA the two-pion production in proton-proton collisisons has been measured exclusively from threshold up to the energy regime, where both of the collision partners are expected to be excited to the Δ state. The measurements constitute the first kinematically complete data samples of solid statistics in this energy range. Most of the data have been obtained for the π+π- and π0π0channels. Whereas at near-threshold energies the differential distributions can be succesfully explained by chiral dynamics and Roper excitation, respectively, the data for the π+π- channel in the ΔΔ region can be described only, if the special configuration (ΔΔ)0+ is assumed. The data for the π0π0 channel moreover exhibit a low-mass enhancement in the π0π0 invariant mass spectrum, which is reminiscent of the ABC-effect found in double-pionic fusion to light nuclei.

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