HIGH MAGNETIC FIELD DEPENDENT DIAMAGNETIC SHIFTS IN AlxGa1-xAs SEMICONDUCTOR ALLOYS

2002 ◽  
Vol 16 (20n22) ◽  
pp. 2960-2963 ◽  
Author(s):  
E. D. JONES ◽  
J. L. RENO ◽  
S. CROOKER ◽  
K. K. BAJAJ ◽  
G. COLI
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
High Magnetic Field ◽  
Photoluminescence Spectroscopy ◽  
Direct Measure ◽  
Semiconductor Alloys ◽  
Diamagnetic Shift ◽  
Two Samples ◽  
Field Dependent ◽  
High Fields

Low temperature diamagnetic shifts and FWHM linewidths of excitonic transitions in Al x Ga 1-x As alloys are reported as a function of magnetic field (50T maximum) at 4K using photoluminescence spectroscopy. Two samples with aluminum compositions of 5 and 20%, are discussed. The slope of the diamagnetic shift at high fields allows a direct measure of the excitonic reduced mass μ.

Low temperature and high magnetic field study of UBe13, U0.97Th0.03Be13 and UBe12.94Cu0.06

1986 ◽  
Vol 64 (3) ◽  
pp. 299-304 ◽  
Author(s):  
H. M. Mayer ◽  
U. Rauchschwalbe ◽  
F. Steglich ◽  
G. R. Stewart ◽  
A. L. Giorgi
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
Field Study ◽  
High Magnetic Field

High magnetic field quantum transport in the low temperature density wave state of the purple bronze KMo6O17

1993 ◽  
Vol 56 (2-3) ◽  
pp. 2725-2730 ◽  
Author(s):  
A. Rotger ◽  
C. Schlenker ◽  
J. Dumas ◽  
J. Marcus ◽  
S. Dubois ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
High Magnetic Field ◽  
Quantum Transport ◽  
Density Wave ◽  
Wave State

scholarly journals Magnetotransport properties of (Ga,Mn)As investigated at low temperature and high magnetic field

2000 ◽  
Vol 7 (3-4) ◽  
pp. 976-980 ◽  
Author(s):  
T Omiya ◽  
F Matsukura ◽  
T Dietl ◽  
Y Ohno ◽  
T Sakon ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
High Magnetic Field

ROOM TEMPERATURE MAGNETIC ANOMALIES IN BENZENE TREATED Bi–Pb–Sr–Ca–Cu–O POWDER

1991 ◽  
Vol 05 (21) ◽  
pp. 1447-1456 ◽  
Author(s):  
A. R. HARUTUNYAN ◽  
L. S. GRIGORYAN ◽  
A. S. KUZANYAN ◽  
A. A. KUZNETSOV ◽  
A. A. TERENTIEV ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Chemical Composition ◽  
Room Temperature ◽  
Microprobe Analysis ◽  
Magnetic Anomalies ◽  
X Ray Diffraction ◽  
X Ray ◽  
Two Samples ◽  
Field Dependent ◽  
History Of

Two samples of benzene-treated Bi–Pb–Sr–Ca–Cu–O powder exhibited at 300 K magnetic field dependent diamagnetism and magnetization irreversibility. The treatment with benzene resulted also in the appearance of microwave absorption at low magnetic fields, while is sensitive to magnetic history of the sample. From X-ray diffraction data one can see that upon benzene treatment the reflections of 85 K and 110 K phases do not change practically, but a series of new reflections appeared, indicating a lattice modulation with 4.9 nm periodicity. A microprobe analysis revealed substantial inhomogeneity of chemical composition across the samples. The room temperature anomalies were weakened in one sample and vanished in the second upon thermal cycling.

High-field liquid state NMR hyperpolarization: a combined DNP/NMRD approach

2014 ◽  
Vol 16 (35) ◽  
pp. 18781-18787 ◽  
Author(s):  
Petr Neugebauer ◽  
Jan G. Krummenacker ◽  
Vasyl P. Denysenkov ◽  
Christina Helmling ◽  
Claudio Luchinat ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Dynamic Nuclear Polarization ◽  
Liquid State ◽  
High Field ◽  
Nuclear Polarization ◽  
Nmr Relaxation ◽  
Relaxation Dispersion ◽  
Liquid Solutions ◽  
High Fields

Dynamic nuclear polarization and NMR relaxation dispersion measurements have been performed on liquid solutions of TEMPOL radicals in solvents with different viscosities at a high magnetic field of 9.2 T. The results indicate that fast dynamics significantly contribute to DNP enhancements at high fields.

MAGNETIC STUDIES OF SUPERCONDUCTING GdBa2Cu3O6+δ AT LOW TEMPERATURE AND HIGH FIELD

1987 ◽  
Vol 01 (05n06) ◽  
pp. 245-250 ◽  
Author(s):  
C.Y. HUANG ◽  
Y. SHAPIRA ◽  
P.H. HOR ◽  
R.L. MENG ◽  
C.W. CHU
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
High Magnetic Field ◽  
High Field ◽  
Paramagnetic Phase ◽  
Néel Temperature ◽  
Magnetic Studies ◽  
Spin Subsystem ◽  
Very High ◽  
Canted Phase

The magnetization of antiferromagnetic superconducting GdBa2Cu3O6+δ has been measured for ~1.5<T≤4.2 K for field up to ~20 T. We found that all Gd3+ spins are nearly parallel at very high field, and that this saturated spin subsystem coexists with superconductivity. Below the Néel temperature, 2.22 K, we observed the transition from the “canted” phase to the paramagnetic phase by the application of a high magnetic field.

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