Effect of Spin Fluctuations on the Ultrasonic Attenuation in Itinerant Electron Systems with Helical Spin Structures

1979 ◽  
Vol 46 (6) ◽  
pp. 1767-1775 ◽  
Author(s):  
Kenji Makoshi
Keyword(s):  
Ultrasonic Attenuation ◽  
Spin Fluctuations ◽  
Itinerant Electron ◽  
Electron Systems ◽  
Spin Structures

SPIN FLUCTUATION THEORY FOR TEMPERATURE-INDUCED FERROMAGNETISM IN ITINERANT ANTIFERROMAGNETS AND PARAMAGNETS

1995 ◽  
Vol 09 (10) ◽  
pp. 1171-1184 ◽  
Author(s):  
A.A. POVZNER ◽  
D.V. LIKHACHEV
Keyword(s):  
Order Parameter ◽  
Magnetic Phase ◽  
Spin Fluctuation ◽  
Density Wave ◽  
Spin Density Wave ◽  
Spin Fluctuations ◽  
Fluctuation Theory ◽  
Itinerant Electron ◽  
Electron Systems ◽  
Antiferromagnetic Transition

The possible occurrence of “temperature-induced ferromagnetism” in itinerant antiferromagnets with spin-density wave and strong paramagnets is discussed on the basis of spin fluctuation theory taking account of the effect of large ferromagnetic spin fluctuations. It is shown that the presence of a point of inflexion of the density of states near the Fermi level leads to the appearance of temperature-induced ferromagnetic order parameter in the itinerant electron systems. In addition the influence of this order parameter on the antiferromagnetic transition temperature is demonstrated and new mechanism of the magnetic phase transition is studied in relation to the magnetism of TiBe 2.

Spin Fluctuations in Itinerant Electron Antiferromagnetic Cr1-xVx System

1980 ◽  
Vol 49 (2) ◽  
pp. 508-513 ◽  
Author(s):  
Jun Takeuchi ◽  
Hiroyuki Sasakura ◽  
Yoshika Masuda
Keyword(s):  
Spin Fluctuations ◽  
Itinerant Electron

scholarly journals Direct visualization of coexisting channels of interaction in CeSb

2019 ◽  
Vol 5 (3) ◽  
pp. eaat7158 ◽  
Author(s):  
Sooyoung Jang ◽  
Robert Kealhofer ◽  
Caolan John ◽  
Spencer Doyle ◽  
Ji-Sook Hong ◽  
...  
Keyword(s):  
Heavy Fermion ◽  
Real Space ◽  
Photoemission Spectroscopy ◽  
Itinerant Electron ◽  
Electron Systems ◽  
Direct Visualization ◽  
Correlated Electron Systems ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Correlated Electron ◽  
Modes Of Interaction

Our understanding of correlated electron systems is vexed by the complexity of their interactions. Heavy fermion compounds are archetypal examples of this physics, leading to exotic properties that weave magnetism, superconductivity and strange metal behavior together. The Kondo semimetal CeSb is an unusual example where different channels of interaction not only coexist, but have coincident physical signatures, leading to decades of debate about the microscopic picture describing the interactions between the f moments and the itinerant electron sea. Using angle-resolved photoemission spectroscopy, we resonantly enhance the response of the Ce f electrons across the magnetic transitions of CeSb and find there are two distinct modes of interaction that are simultaneously active, but on different kinds of carriers. This study reveals how correlated systems can reconcile the coexistence of different modes on interaction—by separating their action in momentum space, they allow their coexistence in real space.

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