Single crystal synchrotron x-ray diffraction study under pressure in UGe2

Naofumi Aso; Kenji Ohwada; Tetsu Watanuki; Akihiko Machida; Ayako Ohmura; Toshiya Inami; Yoshiya Homma; Yoshinobu Shiokawa; Kazuma Hirota; Noriaki K. Sato

doi:10.1143/jpsjs.75s.88

Single crystal synchrotron x-ray diffraction study under pressure in UGe₂

Naofumi Aso, Kenji Ohwada, Tetsu Watanuki, Akihiko Machida, Ayako Ohmura, Toshiya Inami, Yoshiya Homma, Yoshinobu Shiokawa, Kazuma Hirota, Noriaki K. Sato

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Synchrotron radiation x-ray diffraction experiments on the pressure-induced ferromagnetic superconductor UGe₂ has been performed using a diamond anvil cell (DAC) diffractometer to study the correlation between the crystal structure and ferromagnetism. The oscillation photos covering the three-dimensional reciprocal spaces were taken both below and above a critical temperature T_x at pressures up to 1.1 GPa. Coupled charge density wave (CDW) and spin density wave (SDW) fluctuations were predicted as an origin of unusual properties of UGe₂ by Watanabe and Miyake, but no additional superlattice Bragg peaks corresponding to the CDW reflections could be observed, resulting in an upper limit of its intensity of ∼ 1 x 10∼4 to the fundamental Bragg peak intensity.

Original language	English
Pages (from-to)	88-90
Number of pages	3
Journal	journal of the physical society of japan
Volume	75
Issue number	SUPPL.
DOIs	https://doi.org/10.1143/jpsjs.75s.88
Publication status	Published - 2006

Keywords

Magnetism
Superconductivity
Synchrotron radiation x-ray

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/jpsjs.75s.88

Cite this

Single crystal synchrotron x-ray diffraction study under pressure in UGe₂. / Aso, Naofumi; Ohwada, Kenji; Watanuki, Tetsu; Machida, Akihiko; Ohmura, Ayako; Inami, Toshiya; Homma, Yoshiya; Shiokawa, Yoshinobu; Hirota, Kazuma; Sato, Noriaki K.

In: journal of the physical society of japan, Vol. 75, No. SUPPL., 2006, p. 88-90.

Research output: Contribution to journal › Article › peer-review

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abstract = "Synchrotron radiation x-ray diffraction experiments on the pressure-induced ferromagnetic superconductor UGe2 has been performed using a diamond anvil cell (DAC) diffractometer to study the correlation between the crystal structure and ferromagnetism. The oscillation photos covering the three-dimensional reciprocal spaces were taken both below and above a critical temperature Tx at pressures up to 1.1 GPa. Coupled charge density wave (CDW) and spin density wave (SDW) fluctuations were predicted as an origin of unusual properties of UGe2 by Watanabe and Miyake, but no additional superlattice Bragg peaks corresponding to the CDW reflections could be observed, resulting in an upper limit of its intensity of ∼ 1 x 10∼4 to the fundamental Bragg peak intensity.",

keywords = "Magnetism, Superconductivity, Synchrotron radiation x-ray",

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AU - Aso, Naofumi

AU - Ohwada, Kenji

AU - Watanuki, Tetsu

AU - Machida, Akihiko

AU - Ohmura, Ayako

AU - Inami, Toshiya

AU - Homma, Yoshiya

AU - Shiokawa, Yoshinobu

AU - Hirota, Kazuma

AU - Sato, Noriaki K.

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N2 - Synchrotron radiation x-ray diffraction experiments on the pressure-induced ferromagnetic superconductor UGe2 has been performed using a diamond anvil cell (DAC) diffractometer to study the correlation between the crystal structure and ferromagnetism. The oscillation photos covering the three-dimensional reciprocal spaces were taken both below and above a critical temperature Tx at pressures up to 1.1 GPa. Coupled charge density wave (CDW) and spin density wave (SDW) fluctuations were predicted as an origin of unusual properties of UGe2 by Watanabe and Miyake, but no additional superlattice Bragg peaks corresponding to the CDW reflections could be observed, resulting in an upper limit of its intensity of ∼ 1 x 10∼4 to the fundamental Bragg peak intensity.

AB - Synchrotron radiation x-ray diffraction experiments on the pressure-induced ferromagnetic superconductor UGe2 has been performed using a diamond anvil cell (DAC) diffractometer to study the correlation between the crystal structure and ferromagnetism. The oscillation photos covering the three-dimensional reciprocal spaces were taken both below and above a critical temperature Tx at pressures up to 1.1 GPa. Coupled charge density wave (CDW) and spin density wave (SDW) fluctuations were predicted as an origin of unusual properties of UGe2 by Watanabe and Miyake, but no additional superlattice Bragg peaks corresponding to the CDW reflections could be observed, resulting in an upper limit of its intensity of ∼ 1 x 10∼4 to the fundamental Bragg peak intensity.

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KW - Superconductivity

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