scholarly journals Dynamics of dimer and z spin component fluctuations in spin-1/2 XY chain

2005 ◽  
Vol 8 (4) ◽  
pp. 859
Author(s):  
Derzhko ◽  
Krokhmalskii ◽  
Hlushak
Keyword(s):  
Spin Component ◽  
Xy Chain

scholarly journals Effects of defects in the XY chain with frustrated boundary conditions

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Gianpaolo Torre ◽  
Vanja Marić ◽  
Fabio Franchini ◽  
Salvatore Marco Giampaolo
Keyword(s):  
Boundary Conditions ◽  
Xy Chain

scholarly journals Optical Spin Hall Effect in Closed Elliptical Plasmonic Nanoslit with Noncircular Symmetry

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 851
Author(s):  
Xiaorong Ren ◽  
Xiangyu Zeng ◽  
Chunxiang Liu ◽  
Chuanfu Cheng ◽  
Ruirui Zhang ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Hall Effect ◽  
Light Field ◽  
Analytical Calculation ◽  
Spin Hall Effect ◽  
Spin Component ◽  
Phase Gradient ◽  
Bright Spots ◽  
Principal Axes ◽  
Output Field

We investigated the optical spin Hall effect (OSHE) of the light field from a closed elliptical metallic curvilinear nanoslit instead of the usual truncated curvilinear nanoslit. By making use of the characteristic bright spots in the light field formed by the noncircular symmetry of the elliptical slit and by introducing a method to separate the incident spin component (ISC) and converted spin component (CSC) of the output field, the OSHE manifested in the spot shifts in the CSC was more clearly observable and easily measurable. The slope of the elliptical slit, which was inverse along the principal axes, provided a geometric phase gradient to yield the opposite shifts of the characteristic spots in centrosymmetry, with a double shift achieved between the spots. Regarding the mechanism of this phenomenon, the flip of the spin angular momentum (SAM) of CSC gave rise to an extrinsic orbital angular momentum corresponding to the shifts of the wavelet profiles of slit elements in the same rotational direction to satisfy the conservation law. The analytical calculation and simulation of finite-difference time domain were performed for both the slit element and the whole slit ellipse, and the evolutions of the spot shifts as well as the underlying OSHE with the parameters of the ellipse were achieved. Experimental demonstrations were conducted and had consistent results. This study could be of great significance for subjects related to the applications of the OSHE.

Direct observation of the magnetic spin component of samarium–iron-based laves compound by magnetic Compton scattering

2007 ◽  
Vol 310 (2) ◽  
pp. 1635-1636 ◽  
Author(s):  
S. Mizusaki ◽  
N. Kawamura ◽  
T. Taniguchi ◽  
M. Itou ◽  
H. Samata ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Direct Observation ◽  
Spin Component ◽  
Magnetic Spin ◽  
Iron Based

scholarly journals Out of Equilibrium Correlations in the XY Chain

2006 ◽  
Vol 77 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Walter H. Aschbacher ◽  
Jean-Marie Barbaroux
Keyword(s):  
Xy Chain

Static critical behaviors in random-spin systems with short-range interaction

1978 ◽  
Vol 56 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Yoshitake Yamazaki
Keyword(s):  
Short Range ◽  
Spin Systems ◽  
Three Dimensions ◽  
Index Formula ◽  
Spin Component ◽  
Renormalization Group Theory ◽  
Short Range Interaction ◽  
Range Interaction ◽  
The Stability ◽  
Component Models

Critical behaviors in quenched random-spin systems with N-spin component are studied in the limit M → 0 of the non-random MN-component models by means of the renormalization group theory. As the static critical phenomena the stability of the fixed points is investigated and the critical exponents η[~ O(ε3); ε ≡ 4 – d], γ, α, and crossover index [Formula: see text] and the equation of state [~ O(ε)] are obtained. Within the approximation up to the order ε2, even the random-spin systems with N = 2 or 3 are unstable in the three dimensions and the pure systems are stable there.

Implementing “XY-chain”

2015 ◽  
pp. 121-131
Author(s):  
Giulio Zambon
Keyword(s):  
Xy Chain
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