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Journal Articles

BL-10C, the small-angle x-ray scattering beamline at the photon factory

N. Shimizu, T. Mori, Y. Nagatani, H. Ohta, S. Saijo, H. Takagi, M. Takahashi, K. Yatabe, T. Kosuge, N. Igarashi
Journal: AIP Conference Proceedings
AIP Conf. Proc. 2054, 060041 (2019)
https://doi.org/10.1063/1.5084672
Published: January 2019
View article titled, BL-10C, the small-angle x-ray scattering beamline at the photon factory
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Journal Articles

Structural analysis of polymer thin films using GISAXS in the tender X-ray region: Concept and design of GISAXS experiments using the tender X-ray energy at BL-15A2 at the Photon Factory

H. Takagi, N. Igarashi, T. Mori, S. Saijo, Y. Nagatani, H. Ohta, K. Yamamoto, N. Shimizu
Journal: Journal of Applied Physics
J. Appl. Phys. 120, 142119 (2016)
https://doi.org/10.1063/1.4961977
Published: September 2016
View article titled, Structural analysis of polymer thin films using GISAXS in the tender X-ray region: Concept and design of GISAXS experiments using the tender X-ray energy at BL-15A2 at the Photon Factory
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Journal Articles

Upgrade of small angle x-ray scattering beamline BL-6A at the photon factory

H. Takagi, N. Igarashi, T. Mori, S. Saijo, H. Ohta, Y. Nagatani, T. Kosuge, N. Shimizu
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1741, 030018 (2016)
https://doi.org/10.1063/1.4952841
Published: July 2016
View article titled, Upgrade of small angle x-ray scattering beamline BL-6A at the photon factory
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Journal Articles

Multi-frequency force-detected electron spin resonance in the millimeter-wave region up to 150 GHz

E. Ohmichi, Y. Tokuda, R. Tabuse, D. Tsubokura, T. Okamoto, H. Ohta
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 87, 073904 (2016)
https://doi.org/10.1063/1.4959152
Published: July 2016
View article titled, Multi-frequency force-detected electron spin resonance in the millimeter-wave region up to 150 GHz
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Journal Articles

Electronic transitions in GdN band structure

R. Vidyasagar, T. Kita, T. Sakurai, H. Ohta
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 203717 (2014)
https://doi.org/10.1063/1.4880398
Published: May 2014
View article titled, Electronic transitions in GdN band structure
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Journal Articles

Electron spin resonance study of Er-concentration effect in GaAs;Er,O containing charge carriers

F. Elmasry, S. Okubo, H. Ohta, Y. Fujiwara
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 193904 (2014)
https://doi.org/10.1063/1.4876487
Published: May 2014
View article titled, Electron spin resonance study of Er-concentration effect in GaAs;Er,O containing charge carriers
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Journal Articles

Evaluation of minority and majority spin band energies of ferromagnetic GdN thin film using optical absorption spectroscopy

R. Vidyasagar, H. Yoshitomi, S. Kitayama, T. Kita, H. Ohta, T. Sakurai
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1566, 325–326 (2013)
https://doi.org/10.1063/1.4848417
Published: December 2013
View article titled, Evaluation of minority and majority spin band energies of ferromagnetic GdN thin film using optical absorption spectroscopy
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Journal Articles

Giant optical splitting in the spin-states assisting a sharp magnetic switching in GdN thin films

R. Vidyasagar, T. Kita, T. Sakurai, H. Ohta
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 222408 (2013)
https://doi.org/10.1063/1.4809758
Published: June 2013
View article titled, Giant optical splitting in the spin-states assisting a sharp magnetic switching in GdN thin films
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Journal Articles

Ferromagnetic properties of GdN thin films studied by temperature dependent circular polarized spectroscopy

H. Yoshitomi, R. Vidyasagar, S. Kitayama, T. Kita, H. Ohta, S. Okubo, Y. Fukuoka, T. Sakurai
Journal: Applied Physics Letters
Appl. Phys. Lett. 101, 072403 (2012)
https://doi.org/10.1063/1.4746265
Published: August 2012
View article titled, Ferromagnetic properties of GdN thin films studied by temperature dependent circular polarized spectroscopy
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Journal Articles

Study on spin-splitting phenomena in the band structure of GdN

R. Vidyasagar, S. Kitayama, H. Yoshitomi, T. Kita, T. Sakurai, H. Ohta
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 232410 (2012)
https://doi.org/10.1063/1.4727903
Published: June 2012
View article titled, Study on spin-splitting phenomena in the band structure of GdN
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Journal Articles

Atomic structure of a Σ3 [110]/(111) grain boundary in CeO2

B. Feng, H. Hojo, T. Mizoguchi, H. Ohta, S. D. Findlay, Y. Sato, N. Shibata, T. Yamamoto, Y. Ikuhara
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 073109 (2012)
https://doi.org/10.1063/1.3682310
Published: February 2012
View article titled, Atomic structure of a Σ3 [110]/(111) grain boundary in CeO<sub>2</sub>
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Journal Articles

Ferromagnetic State of GdN Thin Film Studied by Ferromagnetic Resonance

H. Ohta, M. Fujisawa, F. Elmasry, S. Okubo, Y. Fukuoka, H. Yoshitomi, S. Kitayama, T. Kita, O. Wada
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1399, 679–680 (2011)
https://doi.org/10.1063/1.3666559
Published: December 2011
View article titled, Ferromagnetic State of GdN Thin Film Studied by Ferromagnetic Resonance
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Journal Articles

Enhancing the electron mobility via delta-doping in SrTiO 3

Y. Kozuka, M. Kim, H. Ohta, Y. Hikita, C. Bell, H. Y. Hwang
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 222115 (2010)
https://doi.org/10.1063/1.3524198
Published: December 2010
View article titled, Enhancing the electron mobility via delta-doping in SrTiO 3
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Journal Articles

Carrier localization in m -plane InGaN/GaN quantum wells probed by scanning near field optical spectroscopy

V. Liuolia, A. Pinos, S. Marcinkevičius, Y. D. Lin, H. Ohta, S. P. DenBaars, S. Nakamura
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 151106 (2010)
https://doi.org/10.1063/1.3502482
Published: October 2010
View article titled, Carrier localization in m -plane InGaN/GaN quantum wells probed by scanning near field optical spectroscopy
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Journal Articles

Classical interatomic potential model for Si/H/Br systems and its application to atomistic Si etching simulation by HBr +

T. Nagaoka, K. Eriguchi, K. Ono, H. Ohta
Journal: Journal of Applied Physics
J. Appl. Phys. 105, 023302 (2009)
https://doi.org/10.1063/1.3056391
Published: January 2009
View article titled, Classical interatomic potential model for Si/H/Br systems and its application to atomistic Si etching simulation by HBr +
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Journal Articles

High-frequency electron spin resonance system using a microcantilever and a pulsed magnetic field

E. Ohmichi, N. Mizuno, M. Kimata, H. Ohta, T. Osada
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 80, 013904 (2009)
https://doi.org/10.1063/1.3069287
Published: January 2009
View article titled, High-frequency electron spin resonance system using a microcantilever and a pulsed magnetic field
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Journal Articles

Improved characteristics and issues of m -plane InGaN films grown on low defect density m -plane freestanding GaN substrates by metalorganic vapor phase epitaxy

S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, T. Onuma, K. Okamoto, H. Ohta
Journal: Applied Physics Letters
Appl. Phys. Lett. 93, 151908 (2008)
https://doi.org/10.1063/1.2998580
Published: October 2008
View article titled, Improved characteristics and issues of m -plane InGaN films grown on low defect density m -plane freestanding GaN substrates by metalorganic vapor phase epitaxy
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Journal Articles

Magnetic detection of high-resolution electron spin resonance using a microcantilever in the millimeter-wave region up to 240 GHz

E. Ohmichi, N. Mizuno, M. Kimata, H. Ohta
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 79, 103903 (2008)
https://doi.org/10.1063/1.2988834
Published: October 2008
View article titled, Magnetic detection of high-resolution electron spin resonance using a microcantilever in the millimeter-wave region up to 240 GHz
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Journal Articles

An interatomic potential model for molecular dynamics simulation of silicon etching by Br + -containing plasmas

H. Ohta, A. Iwakawa, K. Eriguchi, K. Ono
Journal: Journal of Applied Physics
J. Appl. Phys. 104, 073302 (2008)
https://doi.org/10.1063/1.2990070
Published: October 2008
View article titled, An interatomic potential model for molecular dynamics simulation of silicon etching by Br + -containing plasmas
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Journal Articles

Erratum: “Optical properties of nearly stacking-fault-free m -plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density free-standing GaN substrates” [Appl. Phys. Lett. 92, 091912 (2008)]

S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, K. Okamoto, H. Ohta
Journal: Applied Physics Letters
Appl. Phys. Lett. 93, 129901 (2008)
https://doi.org/10.1063/1.2991440
Published: September 2008
View article titled, Erratum: “Optical properties of nearly stacking-fault-free m -plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density free-standing GaN substrates” [Appl. Phys. Lett. 92, 091912 (2008)]
Open the PDF for Erratum: “Optical properties of nearly stacking-fault-free m -plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density free-standing GaN substrates” [Appl. Phys. Lett. 92, 091912 (2008)] in another window