CLASSICAL BEHAVIOR OF TWO-DIMENSIONAL LIQUID 3He NEAR A QUANTUM CRITICAL POINT

2013 ◽  
Vol 27 (29) ◽  
pp. 1347005
Author(s):  
J. W. CLARK ◽  
V. A. KHODEL ◽  
M. V. ZVEREV
Keyword(s):  
Critical Point ◽  
Fermi Liquid ◽  
Quantum Critical Point ◽  
Strongly Correlated ◽  
Two Dimensional ◽  
Intrinsic Properties ◽  
Zero Sound ◽  
Density Region ◽  
Classical Behavior ◽  
Quantum Critical

Non-Fermi-liquid (NFL) behavior of the specific heat C(T) of two-dimensional (2D) liquid 3 He , first uncovered in measurements almost 20 years ago, is explained in terms of intrinsic properties of this system that emerge when its density rises and the liquid becomes strongly correlated. The occurrence of a T-independent β term in C(T) is attributed to satisfaction of the conditions for Dulong–Petit behavior by the boson part of the free energy. This unexpected classicality stems from softening of the transverse zero-sound mode (TZSM) in the density region where the anomaly in C(T), associated with a quantum critical point (QCP), is observed.

scholarly journals Transport Anomalies and Marginal-Fermi-Liquid Effects at a Quantum Critical Point

2000 ◽  
Vol 85 (21) ◽  
pp. 4602-4605 ◽  
Author(s):  
D. Belitz ◽  
T. R. Kirkpatrick ◽  
R. Narayanan ◽  
Thomas Vojta
Keyword(s):  
Critical Point ◽  
Fermi Liquid ◽  
Quantum Critical Point ◽  
Marginal Fermi Liquid ◽  
Quantum Critical

scholarly journals Non-Fermi-liquid types of behavior associated with a magnetic quantum critical point in Sr(Co1−xNix)2As2 single crystals

2019 ◽  
Vol 100 (9) ◽  
Author(s):  
N. S. Sangeetha ◽  
L.-L. Wang ◽  
A. V. Smirnov ◽  
V. Smetana ◽  
A.-V. Mudring ◽  
...  
Keyword(s):  
Critical Point ◽  
Single Crystals ◽  
Fermi Liquid ◽  
Quantum Critical Point ◽  
Quantum Critical

From Kondo semiconductor to a singular non-Fermi liquid via a quantum critical point: The case ofCeRhSb1−xSnx

2005 ◽  
Vol 72 (15) ◽  
Author(s):  
J. Spalek ◽  
A. Ślebarski ◽  
J. Goraus ◽  
L. Spalek ◽  
K. Tomala ◽  
...  
Keyword(s):  
Critical Point ◽  
Fermi Liquid ◽  
Quantum Critical Point ◽  
Kondo Semiconductor ◽  
Quantum Critical

NON-FERMI LIQUID BEHAVIOR IN THE SINGLE-IMPURITY MIXED VALENCE PROBLEM

1995 ◽  
Vol 09 (23) ◽  
pp. 1527-1533
Author(s):  
GUANG-MING ZHANG ◽  
ZHAO-BIN SU ◽  
LU YU
Keyword(s):  
Critical Point ◽  
Fermi Liquid ◽  
Mixed Valence ◽  
Quantum Critical Point ◽  
Coulomb Interactions ◽  
Single Impurity ◽  
Liquid Behavior ◽  
New Type ◽  
Quantum Critical ◽  
Fermi Liquid Behavior

An effective Hamiltonian of the Anderson single-impurity model with finite-range Coulomb interactions is derived near a particular limit, which is analogous to the Toulouse limit of the ordinary Kondo problem, and the physical properties around the mixed valence quantum critical point are calculated. At this quantum critical point, the local moment is only partially quenched and X-ray edge singularities are exhibited. Around this point, a new type of non-Fermi liquid behavior is predicted with an extra specific heat C imp ~ T1/4 + AT ln T and spin-susceptibility χ imp ~T−3/4 + B ln T.

Sign in / Sign up

Export Citation Format

Share Document