Strong magnetic field dependence of laser emission from quantum wires formed by cleaved edge overgrowth

1997 ◽  
Vol 37 (4) ◽  
pp. 709
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Laser Emission ◽  
Quantum Wires

Strong magnetic field dependence of laser emission from quantum wires formed by cleaved edge overgrowth

1996 ◽  
Vol 40 (1-8) ◽  
pp. 1-6 ◽  
Author(s):  
W. Wegscheider ◽  
L.N. Pfeiffer ◽  
K.W. West ◽  
P. Littlewood ◽  
O. Narayan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Laser Emission ◽  
Quantum Wires

Strong magnetic field dependence of the critical currents correlated to the microstructure of YBaCuO ceramics

1990 ◽  
Vol 56 (13) ◽  
pp. 1284-1286 ◽  
Author(s):  
Uri Dai ◽  
Guy Deutscher ◽  
Claude Lacour ◽  
Francine Laher‐Lacour ◽  
Philippe Mocaër ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Critical Currents

Magnetic Field Dependence of Laser Emission inPb1−XSnXSeDiodes

1969 ◽  
Vol 23 (1) ◽  
pp. 7-10 ◽  
Author(s):  
A. R. Calawa ◽  
J. O. Dimmock ◽  
T. C. Harman ◽  
I. Melngailis
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Laser Emission

scholarly journals Searching strong ‘spin’-orbit coupled one-dimensional hole gas in strong magnetic fields

2021 ◽  
Author(s):  
Rui Li
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Strong Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Large Field ◽  
Spin Orbit ◽  
One Dimensional ◽  
Small Magnetic Field ◽  
Strong Spin

Abstract We show that a strong `spin'-orbit coupled one-dimensional (1D) hole gas is achievable via applying a strong magnetic field to the original two-fold degenerate (spin degeneracy) hole gas confined in a cylindrical Ge nanowire. Both strong longitudinal and strong transverse magnetic fields are feasible to achieve this goal. Based on quasi-degenerate perturbation calculations, we show the induced low-energy subband dispersion of the hole gas can be written as $E=\hbar^{2}k^{2}_{z}/(2m^{*}_{h})+\alpha\sigma^{z}k_{z}+g^{*}_{h}\mu_{B}B\sigma^{x}/2$, a form exactly the same as that of the electron gas in the conduction band. Here the Pauli matrices $\sigma^{z,x}$ represent a pseudo spin (or `spin' ), because the real spin degree of freedom has been split off from the subband dispersions by the strong magnetic field. Also, for a moderate nanowire radius $R=10$ nm, the induced effective hole mass $m^{*}_{h}$ ($0.065\sim0.08~m_{e}$) and the `spin'-orbit coupling $\alpha$ ($0.35\sim0.8$ eV~\AA) have a small magnetic field dependence in the studied magnetic field interval $1<B<15$ T, while the effective $g$-factor $g^{*}_{h}$ of the hole `spin' only has a small magnetic field dependence in the large field region.

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