scholarly journals Theory of spin response in underdoped cuprates as strongly fluctuatingd-wave superconductors

2003 ◽  
Vol 68 (10) ◽  
Author(s):  
Igor F. Herbut ◽  
Dominic J. Lee
Keyword(s):  
Spin Response ◽  
Underdoped Cuprates

scholarly journals GAUGE INVARIANT DRESSED HOLON AND SPINON IN DOPED CUPRATES

2003 ◽  
Vol 17 (09) ◽  
pp. 361-373 ◽  
Author(s):  
SHIPING FENG ◽  
TIANXING MA ◽  
JIHONG QIN
Keyword(s):  
Charge Transport ◽  
Hard Core ◽  
Degree Of Freedom ◽  
Gauge Invariant ◽  
Spin Degree ◽  
Novel Approach ◽  
Spin Response ◽  
Underdoped Cuprates ◽  
Charge Degree ◽  
Charge Degree Of Freedom

We develop a partial charge-spin separation fermion-spin theory implemented by the gauge invariant dressed holon and spinon. In this novel approach, the physical electron is decoupled as the gauge invariant dressed holon and spinon, with the dressed holon behaviors like a spinful fermion, and represents the charge degree of freedom together with the phase part of the spin degree of freedom, while the dressed spinon is a hard-core boson, and represents the amplitude part of the spin degree of freedom, then the electron single occupancy local constraint is satisfied. Within this approach, the charge transport and spin response of the underdoped cuprates is studied. It is shown that the charge transport is mainly governed by the scattering from the dressed holons due to the dressed spinon fluctuation, while the scattering from the dressed spinons due to the dressed holon fluctuation dominates the spin response.

scholarly journals What is strange about high-temperature superconductivity in cuprates?

2017 ◽  
Vol 31 (25) ◽  
pp. 1745005
Author(s):  
I. Božović ◽  
X. He ◽  
J. Wu ◽  
A. T. Bollinger
Keyword(s):  
Phase Diagram ◽  
Cuprate Superconductors ◽  
High Temperature Superconductivity ◽  
Einstein Condensation ◽  
Strongly Correlated ◽  
Bose Einstein Condensation ◽  
Ultimate Question ◽  
Underdoped Cuprates ◽  
Bose Einstein ◽  
Superconducting Parameters

Cuprate superconductors exhibit many features, but the ultimate question is why the critical temperature ([Formula: see text]) is so high. The fundamental dichotomy is between the weak-pairing, Bardeen–Cooper–Schrieffer (BCS) scenario, and Bose–Einstein condensation (BEC) of strongly-bound pairs. While for underdoped cuprates it is hotly debated which of these pictures is appropriate, it is commonly believed that on the overdoped side strongly-correlated fermion physics evolves smoothly into the conventional BCS behavior. Here, we test this dogma by studying the dependence of key superconducting parameters on doping, temperature, and external fields, in thousands of cuprate samples. The findings do not conform to BCS predictions anywhere in the phase diagram.

Surface effects on the isovector spin response induced by high energy protons

1985 ◽  
Vol 31 (5) ◽  
pp. 1816-1820 ◽  
Author(s):  
H. Esbensen ◽  
H. Toki ◽  
G. F. Bertsch
Keyword(s):  
Surface Effects ◽  
High Energy ◽  
Spin Response

Spin response of unpolarized quantum dots

1997 ◽  
Vol 40 (6) ◽  
pp. 667-672 ◽  
Author(s):  
L Serra ◽  
E Lipparini
Keyword(s):  
Quantum Dots ◽  
Spin Response

scholarly journals Crossover from coherent quasiparticles to incoherent hole carriers in underdoped cuprates

2009 ◽  
Vol 79 (14) ◽  
Author(s):  
M. Hashimoto ◽  
T. Yoshida ◽  
K. Tanaka ◽  
A. Fujimori ◽  
M. Okusawa ◽  
...  
Keyword(s):  
Underdoped Cuprates

scholarly journals Erratum: Corrigendum: Singular robust room-temperature spin response from topological Dirac fermions

2014 ◽  
Vol 13 (7) ◽  
pp. 756-756
Author(s):  
Lukas Zhao ◽  
Haiming Deng ◽  
Inna Korzhovska ◽  
Zhiyi Chen ◽  
Marcin Konczykowski ◽  
...  
Keyword(s):  
Room Temperature ◽  
Dirac Fermions ◽  
Spin Response
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