Magnons in two-dimensional spin glasses: The high-field limit

1993 ◽  
Vol 48 (21) ◽  
pp. 16109-16112 ◽  
Author(s):  
I. Avgin ◽  
D. L. Huber ◽  
W. Y. Ching
Keyword(s):  
Spin Glasses ◽  
High Field ◽  
Two Dimensional ◽  
Field Limit

Magnons in spin glasses: The high-field limit

1992 ◽  
Vol 46 (1) ◽  
pp. 223-230 ◽  
Author(s):  
I. Avgin ◽  
D. L. Huber ◽  
W. Y. Ching
Keyword(s):  
Spin Glasses ◽  
High Field ◽  
Field Limit

scholarly journals LANDAU LEVEL MIXING AND SOLENOIDAL TERMS IN LOWEST LANDAU LEVEL CURRENTS

1994 ◽  
Vol 08 (17) ◽  
pp. 1065-1073 ◽  
Author(s):  
R. RAJARAMAN ◽  
S. L. SONDHI
Keyword(s):  
Landau Level ◽  
High Field ◽  
Electron System ◽  
Current Operator ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Field Limit ◽  
Lowest Landau Level ◽  
Dimensional Electron System ◽  
Landau Level Mixing

We calculate the lowest Landau level (LLL) current by working in the full Hilbert space of a two-dimensional electron system in a magnetic field and keeping all the nonvanishing terms in the high field limit. The answer i) is not represented by a simple LLL operator and ii) differs from the current operator, recently derived by Martinez and Stone in a field theoretic LLL formalism, by solenoidal terms. Though that is consistent with the inevitable ambiguities of their Noether construction, we argue that the correct answer cannot arise naturally in the LLL formalism.

Magnetic correlations in two-dimensional spin-glasses

1980 ◽  
Vol 22 (1) ◽  
pp. 288-303 ◽  
Author(s):  
I. Morgenstern ◽  
K. Binder
Keyword(s):  
Spin Glasses ◽  
Two Dimensional ◽  
Magnetic Correlations

HIGH FIELD PHASE DIAGRAM OF THE FIELD-INDUCED SUPERCONDUCTING STATE OF λ-(BETS)2FeCl4

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3101-3104
Author(s):  
L. BALICAS ◽  
J. S. BROOKS ◽  
K. STORR ◽  
S. UJI ◽  
M. TOKUMOTO ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Superconducting State ◽  
Ground State ◽  
Electrical Transport ◽  
High Field ◽  
Two Dimensional ◽  
Exchange Field ◽  
Organic Conductor ◽  
Field Phase ◽  
Antiferromagnetic Ground State

We investigate by electrical transport the field-induced superconducting state (FISC) in the organic conductor λ- (BETS) 2 FeCl 4. Below 4 K, antiferromagnetic-insulator, metallic, and eventually superconducting (FISC) ground states are observed with increasing in-plane magnetic field. The FISC state survives between 18 and 41 T, and can be interpreted in terms of the Jaccarino-Peter effect, where the external magnetic field compensates the exchange field of aligned Fe 3+ ions. We further argue that the Fe 3+ moments are essential to stabilize the resulting singlet, two-dimensional superconducting state. Here we provide experimental evidence indicating that this state, as well as the insulating antiferromagnetic ground state, is extremely sensitive to hydrostatic pressure.

Spin–Spin Correlations in Site Disordered ±J 2D Ising Spin Glasses

1998 ◽  
Vol 09 (05) ◽  
pp. 685-691
Author(s):  
B. Kawecka-Magiera ◽  
A. Z. Maksymowicz ◽  
M. Kowal ◽  
K. Kulakowski
Keyword(s):  
Correlation Functions ◽  
Spin Glasses ◽  
Interatomic Distance ◽  
Spin Correlation ◽  
Two Dimensional ◽  
Spin Correlations ◽  
Ising Spin ◽  
Bond System ◽  
Random Site

Spin–spin correlation functions <S(0)S(R)> as dependent on interatomic distance R are studied in the random-site two-dimensional Ising S=1/2 ±J system. Oscillations of the correlation functions are found, which is not a case in the random-bond system.

scholarly journals Searching for a UV-filter in the eyes of high flying birds

2018 ◽  
Author(s):  
Malgorzata Zawadzka ◽  
Beatrix Ràcz ◽  
Dario Ambrosini ◽  
Carl Henrik Gørbitz ◽  
Jens Preben Morth ◽  
...  
Keyword(s):  
Aqueous Humor ◽  
High Field ◽  
Spectroscopic Techniques ◽  
Two Dimensional ◽  
High Altitudes ◽  
Chromatographic Purification ◽  
Uv Filter ◽  
Nmr Methods

AbstractAn ultraviolet (UV)-absorbing compound of unknown identity is present in the aqueous humor of geese and other birds flying at high altitudes. A goose aqueous humor extract, that was believed to contain the UV protective compound which was designated as “compound X”, was fractionated and examined using a variety of spectroscopic techniques including LC-MS and high field one- and two dimensional-NMR methods. A series of compounds were identified but none of them appeared to be the UV protective “compound X”. It may be that the level of the UV protective compound in goose aqueous humor is much less than the compounds identified in our investigation, or it may have been degraded by the isolation and chromatographic purification protocols used in our investigations.

High field De Haas-van Alphen studies in the charge density wave state of the quasi two-dimensional monophosphate tungsten bronze P4W12O44

1997 ◽  
Vol 86 (1-3) ◽  
pp. 2133-2134 ◽  
Author(s):  
C. Le Touze ◽  
L.H. Nguyen ◽  
C. Schlenker ◽  
E. Steep ◽  
M. Greenblatt
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
High Field ◽  
Density Wave ◽  
Tungsten Bronze ◽  
Two Dimensional ◽  
Wave State
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