Magnetic field effect on the ground-state binding energy in InGaN/GaN parabolic QWW
Identifieur interne : 000930 ( Main/Repository ); précédent : 000929; suivant : 000931Magnetic field effect on the ground-state binding energy in InGaN/GaN parabolic QWW
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Abstract
Within the framework of the effective mass scheme, the ground-state binding energy of hydrogenic shallow-donor impurity in wurtzite (WZ) (In,Ga)N/GaN parabolic transversal-section quantum-well wire (PQWW) subjected to magnetic field is investigated. The finite-difference method within the quasi-one-dimensional effective potential model is used. A cylindrical QWW effective radius is introduced to describe the lateral confinement strength. The results show that: (i) the binding energy is the largest for the impurity located at a point corresponding to the largest electron probability density and (ii) it increases with increasing external magnetic field.
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B, Condensed matter</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Binding energy</term><term>Donor center</term><term>Effective mass</term><term>Finite difference method</term><term>Gallium nitride</term><term>Ground states</term><term>H-like ions</term><term>Impurity states</term><term>Indium Gallium Nitrides Mixed</term><term>Magnetic field effects</term><term>Quantum wires</term><term>Shallow level</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Effet champ magnétique</term><term>Etat fondamental</term><term>Energie liaison</term><term>Masse effective</term><term>Etat impureté</term><term>Niveau peu profond</term><term>Centre donneur</term><term>Méthode différence finie</term><term>Indium Gallium Nitrure Mixte</term><term>Nitrure de gallium</term><term>Ion hydrogénoïde</term><term>Fil quantique</term><term>InGaN</term><term>GaN</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Within the framework of the effective mass scheme, the ground-state binding energy of hydrogenic shallow-donor impurity in wurtzite (WZ) (In,Ga)N/GaN parabolic transversal-section quantum-well wire (PQWW) subjected to magnetic field is investigated. The finite-difference method within the quasi-one-dimensional effective potential model is used. A cylindrical QWW effective radius is introduced to describe the lateral confinement strength. The results show that: (i) the binding energy is the largest for the impurity located at a point corresponding to the largest electron probability density and (ii) it increases with increasing external magnetic field.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0921-4526</s0></fA01><fA03 i2="1"><s0>Physica, B Condens. matter</s0></fA03><fA05><s2>421</s2></fA05><fA08 i1="01" i2="1" l="ENG"><s1>Magnetic field effect on the ground-state binding energy in InGaN/GaN parabolic QWW</s1></fA08><fA11 i1="01" i2="1"><s1>EL GHAZI (Haddou)</s1></fA11><fA11 i1="02" i2="1"><s1>JORIO (Anouar)</s1></fA11><fA11 i1="03" i2="1"><s1>ZORKANI (Izeddine)</s1></fA11><fA14 i1="01"><s1>LPS, Faculty of sciences, Dhar EL Mehrez</s1><s2>1796 Atlas Fez</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Specials Mathematics, CPGE Kénitra, Chakib Arsalane Street</s1><s2>Kénitra</s2><s3>MAR</s3><sZ>1 aut.</sZ></fA14><fA20><s1>73-76</s1></fA20><fA21><s1>2013</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>145B</s2><s5>354000509067840150</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>34 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0212731</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physica. B, Condensed matter</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>Within the framework of the effective mass scheme, the ground-state binding energy of hydrogenic shallow-donor impurity in wurtzite (WZ) (In,Ga)N/GaN parabolic transversal-section quantum-well wire (PQWW) subjected to magnetic field is investigated. The finite-difference method within the quasi-one-dimensional effective potential model is used. A cylindrical QWW effective radius is introduced to describe the lateral confinement strength. 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