scholarly journals Temperature-driven BCS-BEC crossover and Cooper-paired metallic phase in coupled boson-fermion systems

2020 ◽  
Vol 102 (14) ◽  
Author(s):  
Maciej M. Maśka ◽  
Nandini Trivedi
Keyword(s):  
Metallic Phase ◽  
Fermion Systems

Dynamic studies of silicide-mediated crystallization of amorphous silicon

1992 ◽  
Vol 50 (2) ◽  
pp. 1352-1353
Author(s):  
C. Hayzelden ◽  
J. L. Batstone
Keyword(s):  
Ion Implantation ◽  
Solid Phase ◽  
Metallic Phase ◽  
Single Crystal Substrate ◽  
Free Electrons ◽  
Melt Temperature ◽  
Transmission Electron ◽  
Crystal Substrate ◽  
High Resolution Tem

Epitaxial reordering of amorphous Si(a-Si) on an underlying single-crystal substrate occurs well below the melt temperature by the process of solid phase epitaxial growth (SPEG). Growth of crystalline Si(c-Si) is known to be enhanced by the presence of small amounts of a metallic phase, presumably due to an interaction of the free electrons of the metal with the covalent Si bonds near the growing interface. Ion implantation of Ni was shown to lower the crystallization temperature of an a-Si thin film by approximately 200°C. Using in situ transmission electron microscopy (TEM), precipitates of NiSi2 formed within the a-Si film during annealing, were observed to migrate, leaving a trail of epitaxial c-Si. High resolution TEM revealed an epitaxial NiSi2/Si(l11) interface which was Type A. We discuss here the enhanced nucleation of c-Si and subsequent silicide-mediated SPEG of Ni-implanted a-Si.Thin films of a-Si, 950 Å thick, were deposited onto Si(100) wafers capped with 1000Å of a-SiO2. Ion implantation produced sharply peaked Ni concentrations of 4×l020 and 2×l021 ions cm−3, in the center of the films.

Metallic phase stabilization and phase diagram of (ET)3(HSO4)2

1991 ◽  
Vol 1 (10) ◽  
pp. 1365-1370 ◽  
Author(s):  
N. D. Kush ◽  
V. N. Laukhin ◽  
A. I. Schegolev ◽  
E. B. Yagubskii ◽  
E. Yu. Alikberova ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Metallic Phase ◽  
Phase Stabilization

DEGREE OF VALENCE MIXING IN THE METALLIC PHASE OF SmS AND IN TmSe

1976 ◽  
Vol 37 (C4) ◽  
pp. C4-267-C4-270 ◽  
Author(s):  
B. BATLOGG ◽  
A. SCHLEGEL ◽  
P. WACHTER
Keyword(s):  
Metallic Phase ◽  
Valence Mixing

scholarly journals Unusual Al27 NMR shift in the Weyl-fermion systems LaAlGe and PrAlGe

2020 ◽  
Vol 102 (24) ◽  
Author(s):  
D. Tay ◽  
T. Shang ◽  
P. Puphal ◽  
E. Pomjakushina ◽  
H.-R. Ott ◽  
...  
Keyword(s):  
Fermion Systems ◽  
Weyl Fermion

Thermally stable fishnet-like 1T-MoS2/CNTs heterostructures with improved electrode performance

2020 ◽  
Author(s):  
Zhendong Lei ◽  
Xue Yu ◽  
Jing Zhan ◽  
Yong Zhang
Keyword(s):  
Energy Storage ◽  
Molybdenum Disulfide ◽  
Metallic Phase ◽  
Thermally Stable ◽  
Electrode Performance ◽  
Energy Storage Applications

1T-MoS2 is the metallic phase of molybdenum disulfide (MoS2), which has obvious advantages in energy storage applications compared with the 2H phase. However, the 1T phase is inherently unstable and...

scholarly journals Robust anomalous metallic states and vestiges of self-duality in two-dimensional granular In-InOx composites

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Xinyang Zhang ◽  
Bar Hen ◽  
Alexander Palevski ◽  
Aharon Kapitulnik
Keyword(s):  
Magnetic Field ◽  
Metallic Phase ◽  
Broadband Noise ◽  
Two Dimensional ◽  
Conventional Theory ◽  
Logarithmic Divergence ◽  
Self Duality ◽  
Low Field ◽  
Wide Range ◽  
Low Temperature Resistance

AbstractMany experiments investigating magnetic-field tuned superconductor-insulator transition (H-SIT) often exhibit low-temperature resistance saturation, which is interpreted as an anomalous metallic phase emerging from a ‘failed superconductor’, thus challenging conventional theory. Here we study a random granular array of indium islands grown on a gateable layer of indium-oxide. By tuning the intergrain couplings, we reveal a wide range of magnetic fields where resistance saturation is observed, under conditions of careful electromagnetic filtering and within a wide range of linear response. Exposure to external broadband noise or microwave radiation is shown to strengthen the tendency of superconductivity, where at low field a global superconducting phase is restored. Increasing magnetic field unveils an ‘avoided H-SIT’ that exhibits granularity-induced logarithmic divergence of the resistance/conductance above/below that transition, pointing to possible vestiges of the original emergent duality observed in a true H-SIT. We conclude that anomalous metallic phase is intimately associated with inherent inhomogeneities, exhibiting robust behavior at attainable temperatures for strongly granular two-dimensional systems.

scholarly journals Many-body entanglement in fermion systems

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
N. Gigena ◽  
M. Di Tullio ◽  
R. Rossignoli
Keyword(s):  
Many Body ◽  
Fermion Systems
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