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Journal Articles

THz cyclotron resonance of a 2D hole gas in a GaN/AlN heterostructure

FeaturedOpen Access
J. Wang, D. G. Rickel, C. F. C. Chang, Z. Zhang, P. Peng, Y. Huang, A. K. Azad, D. Jena, H. G. Xing, S. A. Crooker
Journal: Applied Physics Letters
Appl. Phys. Lett. 126, 213102 (2025)
https://doi.org/10.1063/5.0273413
Published: May 2025
View articletitled, THz cyclotron resonance of a 2D hole gas in a GaN/AlN heterostructure
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Journal Articles

Shubnikov–de Haas oscillations of 2DEGs in coherently strained AlN/GaN/AlN heterostructures on bulk AlN substrates

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Yu-Hsin Chen, Jimy Encomendero, Chuan F. C. Chang, Huili Grace Xing, Debdeep Jena
Journal: Applied Physics Letters
Appl. Phys. Lett. 126, 202101 (2025)
https://doi.org/10.1063/5.0264000
Published: May 2025
View articletitled, Shubnikov–de Haas oscillations of 2DEGs in coherently strained AlN/GaN/AlN heterostructures on bulk AlN substrates
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Journal Articles

Two-carrier model-fitting of Hall effect in semiconductors with dual-band occupation: A case study in GaN two-dimensional hole gas

Open Access
Joseph E. Dill, Chuan F. C. Chang, Debdeep Jena, Huili Grace Xing
Journal: Journal of Applied Physics
J. Appl. Phys. 137, 025702 (2025)
https://doi.org/10.1063/5.0248998
Published: January 2025
View articletitled, Two-carrier model-fitting of Hall effect in semiconductors with dual-band occupation: A case study in GaN two-dimensional hole gas
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Journal Articles

High-coercivity heavy-rare-earth-free NdFeB sintered magnets developed by doping Ce85Al15 and grain boundary diffusion with Pr70Cu15Al15

FeaturedOpen Access
Y. J. Wong, H. W. Chang, Y. I. Lee, W. C. Chang, C. H. Chiu, C. C. Mo
Journal: AIP Advances
AIP Advances 13, 025226 (2023)
https://doi.org/10.1063/9.0000446
Published: February 2023
View articletitled, High-coercivity heavy-rare-earth-free NdFeB sintered magnets developed by doping Ce85Al15 and grain boundary diffusion with Pr70Cu15Al15
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Journal Articles

Directional growth effect on magneto-mechanical properties of Fe81Al19 alloy

Open Access
H. W. Chang, S. U. Jen, Y. H. Liao, Y. J. Wong, C. H. Chiu, W. C. Chang
Journal: AIP Advances
AIP Advances 13, 025308 (2023)
https://doi.org/10.1063/9.0000370
Published: February 2023
View articletitled, Directional growth effect on magneto-mechanical properties of Fe81Al19 alloy
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Journal Articles

Coercivity enhancement of hot-deformed NdFeB magnets by in situ two-end-diffusion with R70Cu30 alloy powders (R = NdPr and Ce)

Open Access
Y. J. Wong, W. M. Huang, H. W. Chang, W. C. Chang
Journal: AIP Advances
AIP Advances 13, 025202 (2023)
https://doi.org/10.1063/9.0000445
Published: February 2023
View articletitled, Coercivity enhancement of hot-deformed NdFeB magnets by in situ two-end-diffusion with R70Cu30 alloy powders (R = NdPr and Ce)
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Journal Articles

In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources

Open Access
P. J. Adrian, J. Armstrong, A. Birkel, C. Chang, S. Dannhoff, T. Evans, M. Gatu Johnson, T. M. Johnson, N. Kabadi, J. Kunimune, C. K. Li, B. Reichelt, S. P. Regan, J. Pearcy, R. D. Petrasso, G. Pien, M. McCluskey, F. H. Séguin, G. D. Sutcliffe, J. A. Frenje
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 93, 113534 (2022)
https://doi.org/10.1063/5.0099752
Published: November 2022
View articletitled, In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources
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Journal Articles

Large stress-induced anisotropy in soft magnetic films for synthetic spin valves

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H. W. Chang, F. T. Yuan, D. Y. Lin, D. H. Tseng, W. C. Chang, Y. S. Chen, J. G. Lin
Journal: Applied Physics Letters
Appl. Phys. Lett. 119, 242402 (2021)
https://doi.org/10.1063/5.0070033
Published: December 2021
View articletitled, Large stress-induced anisotropy in soft magnetic films for synthetic spin valves
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Journal Articles

Effects of electron cyclotron heating on the toroidal flow in LHD plasmas

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Y. Yamamoto, S. Murakami, C. C. Chang, H. Takahashi, K. Ida, M. Yoshinuma, W. H. Ko
Journal: Physics of Plasmas
Phys. Plasmas 28, 102501 (2021)
https://doi.org/10.1063/5.0057344
Published: October 2021
View articletitled, Effects of electron cyclotron heating on the toroidal flow in LHD plasmas
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Journal Articles

Source-like patterns of flow past a circular cylinder of finite span at low Reynolds numbers

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Yuan-Shuo Chang (張元碩), Yi-Ju Chen (陳逸儒), Yu-Hau Qiu (邱榆豪), Chien C. Chang (張建成), Chin-Chou Chu (朱錦洲), Fang-Shou Lee (李芳壽)
Journal: Physics of Fluids
Physics of Fluids 33, 083607 (2021)
https://doi.org/10.1063/5.0056885
Published: August 2021
View articletitled, Source-like patterns of flow past a circular cylinder of finite span at low Reynolds numbers
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Journal Articles

Time-resolved cathodoluminescence in an ultrafast transmission electron microscope

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S. Meuret, L. H. G. Tizei, F. Houdellier, S. Weber, Y. Auad, M. Tencé, H.-C. Chang, M. Kociak, A. Arbouet
Journal: Applied Physics Letters
Appl. Phys. Lett. 119, 062106 (2021)
https://doi.org/10.1063/5.0057861
Published: August 2021
View articletitled, Time-resolved cathodoluminescence in an ultrafast transmission electron microscope
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Includes: Supplementary data
Journal Articles

Coercivity enhancement of hot-deformed NdFeB magnet by doping R80Al20 (R = La, Ce, Dy, Tb) alloy powders

Open Access
H. W. Chang, G. T. Lin, Y. J. Wong, W. M. Huang, W. C. Chang
Journal: AIP Advances
AIP Advances 11, 025001 (2021)
https://doi.org/10.1063/9.0000028
Published: February 2021
View articletitled, Coercivity enhancement of hot-deformed NdFeB magnet by doping R80Al20 (R = La, Ce, Dy, Tb) alloy powders
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Journal Articles

Comparison on the coercivity enhancement of the sintered NdFeB magnets by grain boundary diffusion with Tb70Cu30 powders prepared by different milling methods

Open Access
Y. J. Wong, W. C. Hsu, H. W. Chang, Y. I. Lee, W. C. Chang, C. H. Chiu, C. C. Mo
Journal: AIP Advances
AIP Advances 11, 025101 (2021)
https://doi.org/10.1063/9.0000073
Published: February 2021
View articletitled, Comparison on the coercivity enhancement of the sintered NdFeB magnets by grain boundary diffusion with Tb70Cu30 powders prepared by different milling methods
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Journal Articles

Particle size effects on the detonation velocity of nitramine containing compositions

Free
Victor J. Bellitto, Mikhail I. Melnik, Mary H. Sherlock, Joseph C. Chang, John H. O'Connor, Joseph A. Mackey
Journal: AIP Conference Proceedings
AIP Conf. Proc. 2272, 070005 (2020)
https://doi.org/10.1063/12.0001006
Published: November 2020
View articletitled, Particle size effects on the detonation velocity of nitramine containing compositions
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Journal Articles

Stokes’s flow of a bumpy shaft inside a cylinder and a model for predicting the roughness of the shaft

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Meng-Tian Song (宋孟天), Jie-Chao Lei (雷杰超), Chien C. Chang (张建成), Chang-Yi Wang (王昌逸)
Journal: Physics of Fluids
Physics of Fluids 32, 032002 (2020)
https://doi.org/10.1063/1.5142050
Published: March 2020
View articletitled, Stokes’s flow of a bumpy shaft inside a cylinder and a model for predicting the roughness of the shaft
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Includes: Supplementary data
Journal Articles

Correlation between phase composition and exchange bias in CoFe/MnN and MnN/CoFe polycrystalline films

Open Access
H. W. Chang, Y. H. Chien, F. T. Yuan, Y. R. Lai, C. R. Wang, Lance Horng, W. C. Chang
Journal: AIP Advances
Series: Magnetism and Magnetic Materials
AIP Advances 10, 025035 (2020)
https://doi.org/10.1063/1.5129820
Published: February 2020
View articletitled, Correlation between phase composition and exchange bias in CoFe/MnN and MnN/CoFe polycrystalline films
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Journal Articles

Comparison on the coercivity enhancement of sintered NdFeB magnets by grain boundary diffusion with low-melting (Tb, R)75Cu25 alloys (R= None, Y, La, and Ce)

Open Access
Y. J. Wong, H. W. Chang, Y. I. Lee, W. C. Chang, C. H. Chiu, C. C. Mo
Journal: AIP Advances
Series: Magnetism and Magnetic Materials
AIP Advances 9, 125238 (2019)
https://doi.org/10.1063/1.5129897
Published: December 2019
View articletitled, Comparison on the coercivity enhancement of sintered NdFeB magnets by grain boundary diffusion with low-melting (Tb, R)75Cu25 alloys (R= None, Y, La, and Ce)
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Journal Articles

Three-dimensional periodic materials as seismic base isolator for nuclear infrastructure

Open Access
Witarto Witarto, S. J. Wang, C. Y. Yang, Jiaji Wang, Y. L. Mo, K. C. Chang, Yu Tang
Journal: AIP Advances
AIP Advances 9, 045014 (2019)
https://doi.org/10.1063/1.5088609
Published: April 2019
View articletitled, Three-dimensional periodic materials as seismic base isolator for nuclear infrastructure
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Journal Articles

Comparison on the structure and exchange bias in Co/MnPt and MnPt/Co polycrystalline films on glass substrates

Open Access
H. W. Chang, F. T. Yuan, P. Y. Yeh, Y. C. Chen, Y. L. Lai, P. H. Pan, C. R. Wang, Lance Horng, W. C. Chang
Journal: AIP Advances
Series: Magnetism and Magnetic Materials
AIP Advances 9, 035330 (2019)
https://doi.org/10.1063/1.5079890
Published: March 2019
View articletitled, Comparison on the structure and exchange bias in Co/MnPt and MnPt/Co polycrystalline films on glass substrates
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Journal Articles

Hammerhead, an ultrahigh resolution ePix camera for wavelength-dispersive spectrometers

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G. Blaj, D. Bhogadi, C. Chang, D. Doering, C. Kenney, T. Kroll, J. Segal, D. Sokaras, G. Haller
Journal: AIP Conference Proceedings
AIP Conf. Proc. 2054, 060037 (2019)
https://doi.org/10.1063/1.5084668
Published: January 2019
View articletitled, Hammerhead, an ultrahigh resolution ePix camera for wavelength-dispersive spectrometers
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