Probing complex low-dimensional solids with scanning probe microscopes: From charge density waves to high-temperature superconductivity

1996 ◽  
Vol 14 (2) ◽  
pp. 1064 ◽  
Author(s):  
Jie Liu
Keyword(s):  
High Temperature ◽  
Charge Density ◽  
High Temperature Superconductivity ◽  
Charge Density Waves ◽  
Scanning Probe ◽  
Density Waves ◽  
Low Dimensional

scholarly journals High-temperature charge density wave correlations in La1.875Ba0.125CuO4 without spin–charge locking

2017 ◽  
Vol 114 (47) ◽  
pp. 12430-12435 ◽  
Author(s):  
H. Miao ◽  
J. Lorenzana ◽  
G. Seibold ◽  
Y. Y. Peng ◽  
A. Amorese ◽  
...  
Keyword(s):  
High Temperature ◽  
Charge Density ◽  
Density Wave ◽  
Charge Density Waves ◽  
Charge Ordering ◽  
Density Waves ◽  
Spin Correlations ◽  
Spin Order ◽  
Charge Correlations ◽  
Ordering Transition

Although all superconducting cuprates display charge-ordering tendencies, their low-temperature properties are distinct, impeding efforts to understand the phenomena within a single conceptual framework. While some systems exhibit stripes of charge and spin, with a locked periodicity, others host charge density waves (CDWs) without any obviously related spin order. Here we use resonant inelastic X-ray scattering to follow the evolution of charge correlations in the canonical stripe-ordered cuprate La1.875Ba0.125CuO4 across its ordering transition. We find that high-temperature charge correlations are unlocked from the wavevector of the spin correlations, signaling analogies to CDW phases in various other cuprates. This indicates that stripe order at low temperatures is stabilized by the coupling of otherwise independent charge and spin density waves, with important implications for the relation between charge and spin correlations in the cuprates.

scholarly journals Emergence of a Metal–Insulator Transition and High-Temperature Charge-Density Waves in VSe2 at the Monolayer Limit

Nano Letters ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 5432-5438 ◽  
Author(s):  
Ganbat Duvjir ◽  
Byoung Ki Choi ◽  
Iksu Jang ◽  
Søren Ulstrup ◽  
Soonmin Kang ◽  
...  
Keyword(s):  
High Temperature ◽  
Charge Density ◽  
Charge Density Waves ◽  
Insulator Transition ◽  
Density Waves ◽  
Metal Insulator Transition ◽  
Metal Insulator

scholarly journals Disorder raises the critical temperature of a cuprate superconductor

2019 ◽  
Vol 116 (22) ◽  
pp. 10691-10697 ◽  
Author(s):  
Maxime Leroux ◽  
Vivek Mishra ◽  
Jacob P. C. Ruff ◽  
Helmut Claus ◽  
Matthew P. Smylie ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Superconductivity ◽  
High Temperature Superconductors ◽  
Charge Density Waves ◽  
Tuning Parameter ◽  
Density Waves ◽  
Pair Density ◽  
The Many ◽  
Tunnel Diode Oscillator ◽  
Dynamic Layer

With the discovery of charge-density waves (CDWs) in most members of the cuprate high-temperature superconductors, the interplay between superconductivity and CDWs has become a key point in the debate on the origin of high-temperature superconductivity. Some experiments in cuprates point toward a CDW state competing with superconductivity, but others raise the possibility of a CDW-superconductivity intertwined order or more elusive pair-density waves (PDWs). Here, we have used proton irradiation to induce disorder in crystals of La1.875Ba0.125CuO4 and observed a striking 50% increase of Tc, accompanied by a suppression of the CDWs. This is in sharp contrast with the behavior expected of a d-wave superconductor, for which both magnetic and nonmagnetic defects should suppress Tc. Our results thus make an unambiguous case for the strong detrimental effect of the CDW on bulk superconductivity in La1.875Ba0.125CuO4. Using tunnel diode oscillator (TDO) measurements, we find indications for potential dynamic layer decoupling in a PDW phase. Our results establish irradiation-induced disorder as a particularly relevant tuning parameter for the many families of superconductors with coexisting density waves, which we demonstrate on superconductors such as the dichalcogenides and Lu5Ir4Si10.

ELECTRONIC TRANSPORT BEHAVIORS DUE TO CHARGE DENSITY WAVES IN Ni–Nb–Zr–H GLASSY ALLOYS

2013 ◽  
Vol 27 (28) ◽  
pp. 1350164
Author(s):  
MIKIO FUKUHARA ◽  
YOSHIMASA UMEMORI
Keyword(s):  
Charge Density ◽  
Glassy Alloy ◽  
Charge Density Waves ◽  
Induced Voltage ◽  
Density Waves ◽  
Metal Insulator ◽  
Voltage Oscillation ◽  
Glassy Alloys ◽  
Coulomb Oscillation ◽  
Low Dimensional

The amorphous Ni – Nb – Zr – H glassy alloy containing subnanometer-sized icosahedral Zr 5 Nb 5 Ni 3 clusters exhibited four types of electronic phenomena: a metal/insulator transition, an electric current-induced voltage oscillation (Coulomb oscillation), giant capacitor behavior and an electron avalanche with superior resistivity. These findings could be excluded by charge density waves that the low-dimensional component of clusters, in which the atoms are lined up in chains along the [130] direction, plays important roles in various electron transport phenomena.

The control of gap width in the low-dimensional systems with charge density waves instability

1995 ◽  
Vol 16 (4) ◽  
pp. 775-782 ◽  
Author(s):  
A. I. Dmitriev ◽  
G. V. Lashkarev ◽  
V. K. Kiselyev ◽  
V. K. Kononenko ◽  
E. M. Kuleshov
Keyword(s):  
Charge Density ◽  
Charge Density Waves ◽  
Density Waves ◽  
Low Dimensional ◽  
Gap Width

Macroscopic quantum tunneling of charge density waves

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-161-Pr10-163
Author(s):  
H. Matsukawa ◽  
H. Miyake ◽  
M. Yumoto ◽  
H. Fukuyama
Keyword(s):  
Charge Density ◽  
Quantum Tunneling ◽  
Charge Density Waves ◽  
Density Waves ◽  
Macroscopic Quantum ◽  
Macroscopic Quantum Tunneling
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