Cyclotron resonance of a magnetopolaron in a semiconductor quantum well

Kong, Xiao-Jun; Wei, Cheng-Wen; Gu, Shi‐Wei

doi:10.1103/physrevb.39.3230

Cited by 22 publications

(7 citation statements)

References 21 publications

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“…The projection operator in the theory of Argyres and Sigel contains the electron spin index. By using this method, we succeeded in formulating a response theory [15,16], which includes the Kubo theory as the effective lowest-order approximation [17,18]. The EPRLP function derived is similar to those obtained by other methods [10,11].…”

Section: Introductionmentioning

confidence: 84%

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Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Park¹

2012

Journal of Magnetics

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In this study, we determine that the electron paramagnetic resonance line-width (EPRLW) is axially symmetric about the c-axis and analyze the spin Hamiltonian with an isotopic g-factor of 1.9920 at a frequency of 9.5 GHz. It should be noted that the electron paramagnetic resonance signals are Lorentzian. Our findings show that the EPRLW decreases exponentially with an increase in the temperature; i.e., its temperature dependence in the range 300-400 K obeys Arrhenius behavior, this kind of temperature dependence indicates an off-center a motional narrowing of the spectrum when Mn 2+ impurity ions substitute for Nb 5+ ions. The specific heats follow a linear dependence suggesting a simple Debye T 3 behavior.

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Section: Introductionmentioning

confidence: 84%

“…5 that the EPRLW decreases exponentially as the temperature increases; that is, the temperature dependence in the range of 300-400 K obeys the Arrhenius behavior. This formula was used by us for the extraction of the relaxation time from the temperature dependence of narrowed EPR spectra line [15]. The result is shown in Fig.…”

Section: Line-profile Formulamentioning

confidence: 99%

Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Park¹

2012

Journal of Magnetics

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“…For the symmetric CF modes, the coupling function g jw (z) in Eq. ( 4) is determined by the following equation: [23] g S,CF (z) (5) and…”

Section: Model and Calculationmentioning

confidence: 99%

“…[1−4] However these studies overexaggerated the phonon influence due to the dimensional effect of polarons. Kong et al [5] and Hu et al [6] discussed the ground states and CR of interface magnetopolarons in heterojunctions by considering the effect of bulk longitudinal optical (LO) phonons and a single branch of effective interface (IF) optical phonons. In a previous paper, [7] we considered all of the bulk LO phonons and IF phonons to study the polaron CR in single quantum wells (QWs).…”

Section: Introductionmentioning

confidence: 99%

Built-in electric field effect on cyclotron mass of magnetopolarons in a wurtzite In _x Ga _{1−
x} N/GaN quantum well

Zhao¹,

Mei²

2012

Chinese Phys. B

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The cyclotron mass of magnetopolarons in wurtzite InxGa 1−x N/GaN quantum well is studied in the presence of an external magnetic field by using the Larsen perturbation method. The effects of the built-in electric field and different phonon modes including interface, confined and half-space phonon modes are considered in our calculation. The results for a zinc-blende quantum well are also given for comparison. It is found that the main contribution to the transition energy comes from half-space and interface phonon modes when the well width is very small while the confined modes play a more important role in a wider well due to the location of the electron wave function. As the well width increases, the cyclotron mass of magnetopolarons first increases to a maximum and then decreases either with or without the built-in electric field in the wurtzite structure and the built-in electric field slightly reduces the cyclotron mass. The variation of cyclotron mass in a zinc-blende structure is similar to that in a wurtzite structure. With the increase of external magnetic field, the cyclotron mass of polarons almost linearly increases. The cyclotron frequency of magnetopolarons is also discussed.

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“…As discussed in Ref. [11], for a narrow quantum well, the 2-direction wave function of the electron can be approximately taken as…”

Section: E\mentioning

confidence: 99%

Resonant Frequency of Impurity Polaron in a Quantum Well

Wei

1994

Commun. Theor. Phys.

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It is shown that the resonant frequency w* of a. ma.gnetopola.ion bound to a Coulomb impurity in a GaAs/Gai_! AIxAs quantum well is lower than that of longitudinal optical (LO) phonons owing to the effect of the Coulomb potential. Using MacDonald method to treat the Coulomb potential we come to the conclusion that w* is really below the frequency of LO phonons but not "pinning" at a frequency near that of TO phonons.

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Cyclotron resonance of a magnetopolaron in a semiconductor quantum well

Cited by 22 publications

References 21 publications

Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Built-in electric field effect on cyclotron mass of magnetopolarons in a wurtzite In _x Ga _{1−
x} N/GaN quantum well

Resonant Frequency of Impurity Polaron in a Quantum Well

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Cyclotron resonance of a magnetopolaron in a semiconductor quantum well

Cited by 22 publications

References 21 publications

Thermal Properties of Mn-doped LiNbO3Crystals from Magneto-Optical Transitions

Thermal Properties of Mn-doped LiNbO3Crystals from Magneto-Optical Transitions

Built-in electric field effect on cyclotron mass of magnetopolarons in a wurtzite In x Ga 1− x N/GaN quantum well

Resonant Frequency of Impurity Polaron in a Quantum Well

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Product

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Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Thermal Properties of Mn-doped LiNbO₃Crystals from Magneto-Optical Transitions

Built-in electric field effect on cyclotron mass of magnetopolarons in a wurtzite In _x Ga _{1−
x} N/GaN quantum well