Origin of split peaks in the oscillatory magnetoresistance in Al xGa1-x/NGaN heterostructures

N. Tang; B. Shen; K. Han; Z. J. Yang; K. Xu; G. Y. Zhang; T. Lin; B. Zhu; W. Z. Zhou; L. Y. Shang; S. L. Guo; J. H. Chu

doi:10.1063/1.2349561

Origin of split peaks in the oscillatory magnetoresistance in Al _xGa_1-x/NGaN heterostructures

N. Tang, B. Shen, K. Han, Z. J. Yang, K. Xu, G. Y. Zhang, T. Lin, B. Zhu, W. Z. Zhou, L. Y. Shang, S. L. Guo, J. H. Chu

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5 Scopus citations

Abstract

The oscillatory magnetoresistance of the two-dimensional electron gas (2DEG) in Alx Ga1-x NGaN heterostructures has been studied by means of magnetotransport measurements at low temperatures and high magnetic fields. The split peaks of the Shubnikov-de Haas oscillations are observed at high magnetic fields, which are attributed to the spin splitting of the 2DEG. It is found that the spin splitting energy becomes smaller with an increase in magnetic field, indicating that the Zeeman spin splitting is not dominant at measured magnetic field range. Within this magnetic field range, the zero-field spin splitting, as well as Zeeman spin splitting, affects the split peaks in the oscillatory magnetoresistance of the 2DEG in Alx Ga1-x NGaN heterostructures.

Original language	English
Article number	073704
Journal	Journal of Applied Physics
Volume	100
Issue number	7
DOIs	https://doi.org/10.1063/1.2349561
State	Published - 2006
Externally published	Yes

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@article{b291a924834043dab0a5ac196e8acbd8,

title = "Origin of split peaks in the oscillatory magnetoresistance in Al xGa1-x/NGaN heterostructures",

abstract = "The oscillatory magnetoresistance of the two-dimensional electron gas (2DEG) in Alx Ga1-x NGaN heterostructures has been studied by means of magnetotransport measurements at low temperatures and high magnetic fields. The split peaks of the Shubnikov-de Haas oscillations are observed at high magnetic fields, which are attributed to the spin splitting of the 2DEG. It is found that the spin splitting energy becomes smaller with an increase in magnetic field, indicating that the Zeeman spin splitting is not dominant at measured magnetic field range. Within this magnetic field range, the zero-field spin splitting, as well as Zeeman spin splitting, affects the split peaks in the oscillatory magnetoresistance of the 2DEG in Alx Ga1-x NGaN heterostructures.",

author = "N. Tang and B. Shen and K. Han and Yang, \{Z. J.\} and K. Xu and Zhang, \{G. Y.\} and T. Lin and B. Zhu and Zhou, \{W. Z.\} and Shang, \{L. Y.\} and Guo, \{S. L.\} and Chu, \{J. H.\}",

year = "2006",

doi = "10.1063/1.2349561",

language = "英语",

volume = "100",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Origin of split peaks in the oscillatory magnetoresistance in Al xGa1-x/NGaN heterostructures

AU - Tang, N.

AU - Shen, B.

AU - Han, K.

AU - Yang, Z. J.

AU - Xu, K.

AU - Zhang, G. Y.

AU - Lin, T.

AU - Zhu, B.

AU - Zhou, W. Z.

AU - Shang, L. Y.

AU - Guo, S. L.

AU - Chu, J. H.

PY - 2006

Y1 - 2006

N2 - The oscillatory magnetoresistance of the two-dimensional electron gas (2DEG) in Alx Ga1-x NGaN heterostructures has been studied by means of magnetotransport measurements at low temperatures and high magnetic fields. The split peaks of the Shubnikov-de Haas oscillations are observed at high magnetic fields, which are attributed to the spin splitting of the 2DEG. It is found that the spin splitting energy becomes smaller with an increase in magnetic field, indicating that the Zeeman spin splitting is not dominant at measured magnetic field range. Within this magnetic field range, the zero-field spin splitting, as well as Zeeman spin splitting, affects the split peaks in the oscillatory magnetoresistance of the 2DEG in Alx Ga1-x NGaN heterostructures.

AB - The oscillatory magnetoresistance of the two-dimensional electron gas (2DEG) in Alx Ga1-x NGaN heterostructures has been studied by means of magnetotransport measurements at low temperatures and high magnetic fields. The split peaks of the Shubnikov-de Haas oscillations are observed at high magnetic fields, which are attributed to the spin splitting of the 2DEG. It is found that the spin splitting energy becomes smaller with an increase in magnetic field, indicating that the Zeeman spin splitting is not dominant at measured magnetic field range. Within this magnetic field range, the zero-field spin splitting, as well as Zeeman spin splitting, affects the split peaks in the oscillatory magnetoresistance of the 2DEG in Alx Ga1-x NGaN heterostructures.

UR - https://www.scopus.com/pages/publications/33750026955

U2 - 10.1063/1.2349561

DO - 10.1063/1.2349561

M3 - 文章

AN - SCOPUS:33750026955

SN - 0021-8979

VL - 100

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 073704

ER -

Origin of split peaks in the oscillatory magnetoresistance in Al _xGa_1-x/NGaN heterostructures

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