Temperature dependence and magnetic field dependence of quantum point contacts in Si-inversion layers

1992 ◽  
Vol 12 (2) ◽  
pp. 191-193
Author(s):  
S.L. Wang ◽  
P.C. van Son ◽  
B.J. van Wees ◽  
T.M. Klapwijk
Keyword(s):  
Magnetic Field ◽  
Temperature Dependence ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Quantum Point Contacts ◽  
Point Contacts ◽  
Quantum Point

Different Transmission Regimes of Two Quantum Point Contacts in a Magnetic Field

1995 ◽  
Vol 5 (9) ◽  
pp. 1257-1262
Author(s):  
V. Marigliano Ramaglia ◽  
F. Ventriglia ◽  
G. P. Zucchelli
Keyword(s):  
Magnetic Field ◽  
Quantum Point Contacts ◽  
Point Contacts ◽  
Quantum Point

Resistively detected-NMR in triple-gate quantum point contact: magnetic field dependence

2019 ◽  
Author(s):  
Annisa Noorhidayati ◽  
Mohammad Hamzah Fauzi ◽  
Shunta Maeda ◽  
Ken Sato ◽  
Katsumi Nagase ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Quantum Point

TRANSPORT PROPERTIES OF TUNNEL-COUPLED ONE-DIMENSIONAL CHANNELS FROM AN ELECTRON BILAYER SYSTEM IN PERPENDICULAR MAGNETIC FIELD

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2910-2914 ◽  
Author(s):  
S. S. BUCHHOLZ ◽  
S. F. FISCHER ◽  
U. KUNZE ◽  
D. SCHUH ◽  
G. ABSTREITER
Keyword(s):  
Magnetic Field ◽  
Transport Properties ◽  
Quantum Hall ◽  
Quantum Point Contacts ◽  
Perpendicular Magnetic Field ◽  
Point Contacts ◽  
One Dimensional ◽  
Bilayer System ◽  
Quantum Point ◽  
Landau Level Mixing

In a tunnel coupled GaAs / AlGaAs electron bilayer system (BLS), we compare transport measurements of 1D quantum Hall (QH) edge channels with lithographically defined quantum point contacts (QPCs). The electron densities in both systems can be varied by a top-gate. In a perpendicular magnetic field, Landau level mixing is observed in the QH regime, and indications of crossings of spin split QPC subbands are detected.

TEMPERATURE DEPENDENCE OF THE QUANTUM INTERFERENCE PERIODICITY OF HIGH-TEMPERATURE SUPERCONDUCTIVE MATERIAL

1991 ◽  
Vol 05 (16) ◽  
pp. 1105-1108
Author(s):  
C. X. FAN ◽  
K. W. WONG
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Temperature Dependence ◽  
Linear Relationship ◽  
Field Dependence ◽  
Quantum Interference ◽  
Magnetic Field Dependence ◽  
Temperature Sensitive ◽  
Network System ◽  
Granular Superconductivity

The property of periodic magnetic field dependence observed on high temperature material is temperature sensitive. Experimental results show a linear relationship between τ2 and T4, where τ is the rf quantum interference period and T is temperature. This relation emerge from the entirety of weaklinks network system of granular superconductivity.

MAGNETIC FIELD DEPENDENCE OF THE POINT-CONTACT SPECTRA OF CeNi5

1993 ◽  
Vol 07 (01n03) ◽  
pp. 222-225 ◽  
Author(s):  
Y. NAIDYUK ◽  
M. REIFFERS ◽  
A. G. M. JANSEN ◽  
I. K. YANSON ◽  
P. WYDER ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Intermetallic Compound ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Point Contact ◽  
Spin Fluctuations ◽  
Point Contacts ◽  
Second Derivatives ◽  
Derivatives Of ◽  
The Magnetic Field

The intermetallic compound CeNi 5, where Ce is not magnetic and in the maximum valence state, is an enhanced Pauli paramagnet in which spin fluctuations are present. For point contacts between a CeNi 5 single crystal and Cu, the second derivatives of the I-V characteristics reveal a maximum at low voltages (around 3 mV) which disappears in applied magnetic fields above 10 T. This behaviour in the point-contact spectra is ascribed to the quenching of spin fluctuations by the magnetic field.

Nonlinear conductance of quantum point contacts in a magnetic field

1992 ◽  
Vol 7 (3B) ◽  
pp. B279-B282 ◽  
Author(s):  
A J M Neves ◽  
P C Main ◽  
C J G M Langerak ◽  
P H Beton ◽  
L Eaves ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Point Contacts ◽  
Point Contacts ◽  
Quantum Point ◽  
Nonlinear Conductance
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