scholarly journals Quantum critical properties of a metallic spin-density-wave transition

2017 ◽  
Vol 95 (3) ◽  
Author(s):  
Max H. Gerlach ◽  
Yoni Schattner ◽  
Erez Berg ◽  
Simon Trebst
Keyword(s):  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Critical Properties ◽  
Quantum Critical

scholarly journals Scaling of spin-density-wave effects in the quantum critical (Cr86Ru14)1−xVxalloy system

2010 ◽  
Vol 200 (2) ◽  
pp. 022050 ◽  
Author(s):  
L Reddy ◽  
H L Alberts ◽  
A R E Prinsloo ◽  
A M Strydom
Keyword(s):  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Wave Effects ◽  
Quantum Critical

scholarly journals Ultrasmall Moment Incommensurate Spin Density Wave Order Masking a Ferromagnetic Quantum Critical Point in NbFe2

2019 ◽  
Vol 123 (24) ◽  
Author(s):  
P. G. Niklowitz ◽  
M. Hirschberger ◽  
M. Lucas ◽  
P. Cermak ◽  
A. Schneidewind ◽  
...  
Keyword(s):  
Critical Point ◽  
Spin Density ◽  
Density Wave ◽  
Quantum Critical Point ◽  
Spin Density Wave ◽  
Quantum Critical

scholarly journals Quantum critical response at the onset of spin-density-wave order in two-dimensional metals

2011 ◽  
Vol 84 (12) ◽  
Author(s):  
Sean A. Hartnoll ◽  
Diego M. Hofman ◽  
Max A. Metlitski ◽  
Subir Sachdev
Keyword(s):  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Two Dimensional ◽  
Critical Response ◽  
Quantum Critical

scholarly journals ANOMALOUS LOCAL CRITICALITY IN HEAVY FERMION METALS FROM HOLOGRAPHY

2013 ◽  
Vol 28 (01) ◽  
pp. 1450005 ◽  
Author(s):  
M. J. LUO
Keyword(s):  
Fixed Point ◽  
Critical Exponent ◽  
Critical Point ◽  
Spin Density ◽  
Heavy Fermion ◽  
Density Wave ◽  
Quantum Critical Point ◽  
Spin Density Wave ◽  
Quantum Critical ◽  
Non Gaussian

In this paper, we propose a holographic theory to explain a number of anomalous critical phenomena observed in certain heavy fermion metals, e.g. CeCu 5.9 Au 0.1 and YbRh 2( Si 0.95 Ge 0.05)2, which are incompatible with any conventional spin-density-wave quantum critical point theory. We show that the non-Gaussian nature of the fixed point from holography plays an essential role in the physics of these materials near a quantum critical point, which is not in the same universality class of the spin-density-wave type fixed point. The critical spin fluctuations at the non-Gaussian fixed point are strongly anisotropic, localized in spatial directions and critical in temporal direction with critical exponent 2/3 in frequency over temperature dependence at low temperature. The local critical exponent tends to unity which leads to a constant spin relaxation rate in the quantum critical regime at high temperature. The stability of the fixed point is also discussed.

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