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Dive into the research topics where J. W. Quilty is active.

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Featured researches published by J. W. Quilty.


Journal of the Physical Society of Japan | 2007

Photoemission study of temperature-induced and photoinduced spin-state transitions in spin-crossover complex [Fe(ptz)6](BF4)2

Jin Young Son; K. Takubo; Daisuke Asakura; J. W. Quilty; T. Mizokawa; Akio Nakamoto; Norimichi Kojima

We report an x-ray photoemission spectroscopy study of spin-crossover complex [Fe(ptz) 6 ](BF 4 ) 2 (ptz = 1-propyltetrazole) to identify the electronic changes due to temperature-induced and photoinduced spin transitions. The energy difference between the Fe 2 p and F 1 s peaks is found to correlate with the low-spin (LS) to high-spin (HS) transition of [Fe(ptz) 6 ](BF 4 ) 2 . The Fe 2 p 3/2 spectrum of the HS state is accompanied by a charge-transfer satellite and is analyzed by configuration-interaction cluster-model calculations. Based on the electronic-structure parameters from the cluster-model analysis, the stability of the LS state against the HS state is calculated as a function of the Fe–N bond length. A drastic bond-length reduction is required to stabilize the LS state and is also related to the observed core-level shift. The postillumination spectral shape well reproduces the spectrum before the laser illumination, suggesting that the surface of the Fe complex is chemically stable against the...


Physical Review Letters | 2005

X-ray photoemission study of CuIr2S4: Ir3+-Ir4+ charge ordering and the effect of light illumination

K. Takubo; S. Hirata; J. Y. Son; J. W. Quilty; T. Mizokawa; N Matsumoto; Shoichi Nagata


Physical Review B | 2005

Photoinduced valence transition in gold complexes Cs2Au2X6 (X=Cl and Br) probed by x-ray photoemission spectroscopy

J. Y. Son; T. Mizokawa; J. W. Quilty; K. Takubo; Keisuke Ikeda; Norimichi Kojima


Physical Review Letters | 2004

Photoemission study of YBa2Cu3Oy thin films under light illumination

Daisuke Asakura; J. W. Quilty; K. Takubo; S. Hirata; T. Mizokawa; Yuji Muraoka; Zenji Hiroi


Physical Review B | 2004

Electronic structure of La2-2xSr1+2xMn 2O7 studied by x-ray photoemission spectroscopy

J. Y. Son; T. Mizokawa; J. W. Quilty; S. Hirata; K. Takubo; Tsuyoshi Kimura; Y. Tokura


Journal of the Physical Society of Japan | 2007

Photoemission Study of Temperature-Induced and Photoinduced Spin-State Transitions in Spin-Crossover Complex [Fe(ptz)_6](BF_4)_2(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

Jin-Young Son; K. Takubo; Daisuke Asakura; J. W. Quilty; T. Mizokawa; Akio Nakamoto; Norimichi Kojima


Physical Review Letters | 2006

Asakura etal. Reply

Daisuke Asakura; J. W. Quilty; K. Takubo; T. Mizokawa; Yuji Muraoka; Zenji Hiroi


Physical Review Letters | 2006

Asakura et al. Reply

Daisuke Asakura; J. W. Quilty; K. Takubo; T. Mizokawa; Yuji Muraoka; Zenji Hiroi


Journal of Electron Spectroscopy and Related Phenomena | 2005

Photoemission measurements of transition-metal oxides under laser illumination

J. W. Quilty; J.-Y. Son; T. Mizokawa; Daisuke Asakura; N. Motoyama; S. Uchida; Tsuyoshi Kimura; Yoshinori Tokura


Journal of Electron Spectroscopy and Related Phenomena | 2005

Photoemission Study of YBa2Cu3Oy Thin Films under Light Illumination

Daisuke Asakura; J. W. Quilty; K. Takubo; S. Hirata; T. Mizokawa; Yuji Muraoka; Zenji Hiroi

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Daisuke Asakura

National Institute of Advanced Industrial Science and Technology

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