Erratum: “Anomalous AC Susceptibility Response of (Cu,C)Ba2Ca2Cu3Oy: Experimental Indication of Two-Component Vortex Matter in Multi-Layered Cuprate Superconductors”

2014 ◽  
Vol 53 (9) ◽  
pp. 099201
Author(s):  
Adrian Crisan ◽  
Yasumoto Tanaka ◽  
Dilip Dhondiram Shivagan ◽  
Akira Iyo ◽  
Liviu Cosereanu ◽  
...  
Keyword(s):  
Cuprate Superconductors ◽  
Ac Susceptibility ◽  
Vortex Matter ◽  
Two Component ◽  
Experimental Indication

Anomalous AC Susceptibility Response of (Cu,C)Ba2Ca2Cu3Oy: Experimental Indication of Two-Component Vortex Matter in Multi-Layered Cuprate Superconductors

2007 ◽  
Vol 46 (No. 19) ◽  
pp. L451-L453 ◽  
Author(s):  
Adrian Crisan ◽  
Yasumoto Tanaka ◽  
Dilip Dhondiram Shivagan ◽  
Akira Iyo ◽  
Liviu Cosereanu ◽  
...  
Keyword(s):  
Cuprate Superconductors ◽  
Ac Susceptibility ◽  
Vortex Matter ◽  
Two Component ◽  
Experimental Indication

Two-component dynamic responses of vortex matter near the vortex melting line in superconducting La1.86Sr0.14CuO4single crystals

2011 ◽  
Vol 24 (5) ◽  
pp. 055014
Author(s):  
Heon-Jung Kim ◽  
M Sasaki ◽  
A Ohnishi ◽  
N Asaka ◽  
M Kitaura ◽  
...  
Keyword(s):  
Dynamic Responses ◽  
Vortex Matter ◽  
Melting Line ◽  
Two Component

scholarly journals Unconventional 17O and 63Cu NMR shift components in cuprate superconductors

2020 ◽  
Vol 34 (19n20) ◽  
pp. 2040047 ◽  
Author(s):  
D. Pavićević ◽  
M. Avramovska ◽  
J. Haase
Keyword(s):  
Cuprate Superconductors ◽  
Spin Fluctuations ◽  
Spin Component ◽  
Temperature Dependent ◽  
Relaxation Data ◽  
As Doping ◽  
Electronic Spin ◽  
Single Temperature ◽  
Two Component ◽  
Properties Of Materials

Nuclear magnetic resonance (NMR) is a fundamental bulk probe that provides key information about the electronic properties of materials. Very recently, the analysis of all available planar copper shift as well as relaxation data proved that while the shifts cannot be understood in terms of a single temperature-dependent spin component, relaxation can be explained with one dominating Fermi liquid-like component, without enhanced electronic spin fluctuations. For the shifts, a doping-dependent isotropic term as well as doping-independent anisotropic term became obvious. Here, we focus on planar [Formula: see text]O NMR shifts and quadrupole splittings. Surprisingly, we find that they demand, independently, a similar two-component scenario and confirm most of the previous conclusions concerning the properties of the spin components, in particular that a negative spin polarization survives in the superconducting state. This should have consequences for the pairing scenario.

scholarly journals Coexistence of Ferromagnetic and Glassy States in Mechanically Milled GdAl2

2002 ◽  
Vol 1 (3) ◽  
Author(s):  
C Stark ◽  
P Shand ◽  
T Pekarek ◽  
D Williams ◽  
R Brown ◽  
...  
Keyword(s):  
Ac Susceptibility ◽  
Bias Field ◽  
Temperature Data ◽  
Susceptibility Data ◽  
Ferromagnetic Component ◽  
Magnetic Components ◽  
Two Component ◽  
High Temperature Data ◽  
Dc Bias ◽  
Dc Bias Field

Measurements of DC susceptibility, AC susceptibility, and AC susceptibility with an applied DC bias field were performed on mechanically milled GdAl2. A paramagnetic phase exists above a temperature T ≈ 140 K. However, there are significant deviations from the Curie-Weiss Law in this temperature regime, suggesting multiple magnetic components. Fits to the high temperature data show that two Curie-Weiss terms represent the data quite well. Below 140 K one of these magnetic components becomes ferromagnetic as indicated by a shoulder in the AC susceptibility and DC susceptibility data. This ferromagnetic component is suppressed by the application of sufficiently strong DC bias field. Accompanying this shoulder is a peak at lower temperatures (T < 50 K), which suggests the existence of another component that is magnetically glassy in nature. The two-component behavior of mechanically milled GdAl2 can be explained in terms of the nanostructure of the material, which consists of nanometer-sized grains and a disordered interphase.

PEAK, DIP AND HISTORY EFFECTS OF VORTEX MATTER

2001 ◽  
Vol 15 (09) ◽  
pp. 1213-1224
Author(s):  
S. Y. DING ◽  
X. F. WU
Keyword(s):  
Critical Current ◽  
Ac Susceptibility ◽  
Peak Effect ◽  
Vortex Matter ◽  
History Effects ◽  
Recent Developments ◽  
History Effect

We review some recent developments in the study on the peak effect (PE) in critical current, the dip effect (DE) and history effect (HE) in AC susceptibility studied numerically and experimentally. Although a great number of studies on these "hot topics" have been made, their mechanisms are still debating. Therefore we focus here on the results associated with those of our group, including the equivalency of PE and DE, their future caused by different mechanisms.

scholarly journals Unconventional quantum vortex matter state hosts quantum oscillations in the underdoped high-temperature cuprate superconductors

2021 ◽  
Vol 118 (7) ◽  
pp. e2021216118
Author(s):  
Yu-Te Hsu ◽  
Máté Hartstein ◽  
Alexander J. Davies ◽  
Alexander J. Hickey ◽  
Mun K. Chan ◽  
...  
Keyword(s):  
Ground State ◽  
Electrical Transport ◽  
Cuprate Superconductors ◽  
Magnetic Hysteresis ◽  
Density Wave ◽  
Vortex Matter ◽  
Quantum Oscillations ◽  
Quantum Vortex ◽  
Pair Density ◽  
Millikelvin Temperatures

A central question in the underdoped cuprates pertains to the nature of the pseudogap ground state. A conventional metallic ground state of the pseudogap region has been argued to host quantum oscillations upon destruction of the superconducting order parameter by modest magnetic fields. Here, we use low applied measurement currents and millikelvin temperatures on ultrapure single crystals of underdoped YBa2Cu3O6+x to unearth an unconventional quantum vortex matter ground state characterized by vanishing electrical resistivity, magnetic hysteresis, and nonohmic electrical transport characteristics beyond the highest laboratory-accessible static fields. A model of the pseudogap ground state is now required to explain quantum oscillations that are hosted by the bulk quantum vortex matter state without experiencing sizable additional damping in the presence of a large maximum superconducting gap; possibilities include a pair density wave.

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