Electronic Structure and the Fermi Surfaces of Antiferromagnetic NdB6

1993 ◽  
Vol 62 (1) ◽  
pp. 205-214 ◽  
Author(s):  
Yasunori Kubo ◽  
Setsuro Asano ◽  
Hisatomo Harima ◽  
Akira Yanase
Keyword(s):  
Electronic Structure ◽  
Fermi Surfaces

Fermi surfaces and electronic structure of the Heusler alloy Co2TiSn

2006 ◽  
Vol 18 (10) ◽  
pp. 2897-2903 ◽  
Author(s):  
M C Hickey ◽  
A Husmann ◽  
S N Holmes ◽  
G A C Jones
Keyword(s):  
Electronic Structure ◽  
Heusler Alloy ◽  
Fermi Surfaces

Electronic structure, magnetism, and Fermi surfaces of Gd and Tb

1994 ◽  
Vol 50 (8) ◽  
pp. 5147-5154 ◽  
Author(s):  
R. Ahuja ◽  
S. Auluck ◽  
B. Johansson ◽  
M. S. S. Brooks
Keyword(s):  
Electronic Structure ◽  
Fermi Surfaces

scholarly journals Multiple Electronic Components and Lifshitz Transitions by Oxygen Wires Formation in Layered Cuprates and Nickelates

2019 ◽  
Vol 4 (1) ◽  
pp. 15 ◽  
Author(s):  
Thomas Jarlborg ◽  
Antonio Bianconi
Keyword(s):  
Electronic Structure ◽  
Bound States ◽  
Localized States ◽  
Self Organization ◽  
Electronic Components ◽  
Fermi Surfaces ◽  
Atomic Wires ◽  
Open Issue ◽  
The Wire ◽  
Layered Cuprates

There is growing compelling experimental evidence that a quantum complex matter scenario made of multiple electronic components and competing quantum phases is needed to grab the key physics of high critical temperature ( T c ) superconductivity in layered cuprates. While it is known that defect self-organization controls T c , the mechanism remains an open issue. Here we focus on the theoretical prediction of the multiband electronic structure and the formation of broken Fermi surfaces generated by the self-organization of oxygen interstitials O i atomic wires in the spacer layers in HgBa 2 CuO 4 ± δ , La 2 CuO 4 ± δ and La 2 NiO 4 ± δ , by means of self-consistent Linear Muffin-Tin Orbital (LMTO) calculations. The electronic structure of a first phase of ordered O i atomic wires and of a second glassy phase made of disordered O i impurities have been studied through supercell calculations. We show the common features of the influence of O i wires in the electronic structure in three types of materials. The ordering of O i into wires leads to a separation of the electronic states between the O i ensemble and the rest of the bulk. The wire formation first produces quantum confined localized states near the wire, which coexist with, Second, delocalized states in the Fermi surface (FS) of doped cuprates. A new scenario emerges for high T c superconductivity, where Kitaev wires with Majorana bound states are proximity-coupled to a 2D d-wave superconductor.

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