Progress in high pressure EDXD system and research at Beijing Synchrotron Radiation Facility

Liu, Jing; Zhao, Jian; Che, Ruxin; Yang, Yang

doi:10.1007/bf02898981

Cited by 9 publications

(6 citation statements)

References 2 publications

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“…In situ high-pressure energy dispersive x-ray diffraction experiments on Sr 2 FeMoO 6 were carried out in a diamond anvil cell ͑DAC͒, with a culet of 480 m diameter, using synchrotron white radiation at the Beijing Synchrotron Radiation Facility ͑BSRF͒. 7 The size of x-ray spot was 80ϫ80 m, and the diffraction angle ͑͒ was 8.776°in our experiment. The powder of Sr 2 FeMoO 6 was loaded, together with a suitable amount of Pt powder for internal pressure calibration, into a 300 m diameter hole in a T301 stainless-steel gasket.…”

Section: Methodsmentioning

confidence: 99%

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Zhao

et al. 2002

Journal of Applied Physics

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The structural stability and electrical properties of Sr2FeMoO6 under high pressure at room temperature have been studied using energy dispersive x-ray diffraction with synchrotron radiation and resistance and capacitance measurements. The x-ray diffraction results show that the structure of Sr2FeMoO6 remains stable up to 40 GPa. The equation of state of Sr2FeMoO6 is obtained from the V/V0–P relationship. The bulk modulus B0 and its first-order derivative B0′ of Sr2FeMoO6 were calculated based on the Birch–Murnaghan equation. The electrical resistance undergoes a metallic transition at about 2.1 GPa. The metallic transition may be caused by a change in the electronic structure induced by high pressure.

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Section: Methodsmentioning

confidence: 99%

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Zhao

et al. 2002

Journal of Applied Physics

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“…In situ high-pressure energy dispersive x-ray diffraction experiments on Sr 2Ϫx Ba x FeMoO 6 were carried out in a diamond anvil cell ͑DAC͒, with a culet of 480 m diameter, using synchrotron white radiation at the Beijing Synchrotron Radiation Facility ͑BSRF͒. 16 The size of the x-ray spot was 80ϫ80 m, and the diffraction angle ͑͒ was 8.776°. The powder of the sample was loaded, together with a suitable amount of Pt powder for internal pressure calibration, into a 300 m diameter hole in a T301 stainless steel gasket.…”

Section: Methodsmentioning

confidence: 99%

Effect of Ba content on initial magnetization ofSr2−xBaxFeMoO
Yu
¹
,
Zhao
²
,
Li
³

et al. 2004
Phys. Rev. B
12
0
4
0
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Series samples of Sr 2Ϫx Ba x FeMoO 6 have been synthesized using conventional solid-state reaction, and the effect of Ba content on the initial magnetizations of the samples has been studied. The measured saturation magnetizations of the samples show that the degree of antisite of Fe and Mo decreases with increasing Ba content. Structural stability and electrical properties of two samples of Sr 2Ϫx Ba x FeMoO 6 under high pressure at room temperature have been studied using energy dispersive x-ray diffraction with synchrotron radiation and resistance and capacitance measurements. The x-ray diffraction results show that the structures of Sr 2Ϫx Ba x FeMoO 6 remain stable in the measured pressure range of about 0-40 GPa. The equations of state of the two samples are obtained from the V/V 0-P relationship based on the Birch-Murnaghan equation. The bulk moduli B 0 of the two samples are calculated according to the Birch-Murnaghan equation assuming that their first order derivatives B 0 Ј are equal to 4. The electrical resistance for the samples shows an abrupt drop at about 2.3-3.8 GPa, which might be caused by a change in the electronic structure induced by high pressure.

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“…The experiments carried out in DACs used energy dispersive diffraction mode. [19,67] The dedicated beamline for high pressure research at BSRF was built in the early 2000s, which used an in-vacuum permanent magnetic wiggler (4W2) as the x-ray radiation source. Figure 1 shows the picture of 4W2 wiggler installed in Beijing Electron Positron Collider (BEPC), which provides flux of ∼ 10 15 photons/s at 20 keV when the storage ring is run with electron energy of 2.5 GeV, current of 250 mA, and wiggle gap of 12 mm.…”

Section: Hp Diffraction Techniques Using Synchrotron Radiation 21 Syn...mentioning

confidence: 99%

High pressure x-ray diffraction techniques with synchrotron radiation

刘景

2016

Chinese Phys. B

Self Cite

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This article summarizes the developments of experimental techniques for high pressure x-ray diffraction (XRD) in diamond anvil cells (DACs) using synchrotron radiation. Basic principles and experimental methods for various diffraction geometry are described, including powder diffraction, single crystal diffraction, radial diffraction, as well as coupling with laser heating system. Resolution in d-spacing of different diffraction modes is discussed. More recent progress, such as extended application of single crystal diffraction for measurements of multigrain and electron density distribution, timeresolved diffraction with dynamic DAC and development of modulated heating techniques are briefly introduced. The current status of the high pressure beamline at BSRF (Beijing Synchrotron Radiation Facility) and some results are also presented.

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Progress in high pressure EDXD system and research at Beijing Synchrotron Radiation Facility

Cited by 9 publications

References 2 publications

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Effect of Ba content on initial magnetization ofSr2−xBaxFeMoO
Yu
¹
,
Zhao
²
,
Li
³

et al. 2004
Phys. Rev. B
12
0
4
0
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High pressure x-ray diffraction techniques with synchrotron radiation

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Progress in high pressure EDXD system and research at Beijing Synchrotron Radiation Facility

Cited by 9 publications

References 2 publications

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Structural stability and electrical properties of Sr2FeMoO6 under high pressure

Effect of Ba content on initial magnetization ofSr2−xBaxFeMoOYu1, Zhao2, Li3 et al. 2004Phys. Rev. B12040View full textAdd to dashboardCite

High pressure x-ray diffraction techniques with synchrotron radiation

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Effect of Ba content on initial magnetization ofSr2−xBaxFeMoO
Yu
¹
,
Zhao
²
,
Li
³

et al. 2004
Phys. Rev. B
12
0
4
0
View full text Add to dashboard Cite