Search for Superconductivity under Ultra-high Pressure

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3623-3625 ◽  
Author(s):  
K. Amaya ◽  
K. Shimizu ◽  
M. I. Eremets
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Electrical Resistance ◽  
Measuring Method ◽  
Experimental Results ◽  
Molecular Systems ◽  
Ultra High Pressure ◽  
Diamond Anvil ◽  
Very Low Temperature

Techniques of producing ultra-high pressure at very low temperature and measuring method of electrical resistance and magnetization of samples confirmed in the used diamond anvil ceil (DAC) are shortly described. Experimental results on simple molecular systems such as iodine, sulfur, oxygen and organic iodanil are reviewed as typical example of pressure induced superconductivity.

Simple low‐temperature press for diamond‐anvil high pressure cells

1981 ◽  
Vol 52 (7) ◽  
pp. 1103-1104 ◽  
Author(s):  
Robert W. Shaw ◽  
Malcolm Nicol
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Diamond Anvil

Low Temperature Processing of Nano-Sized Magnesia Ceramics Using Ultra High Pressure

2013 ◽  
Vol 50 (3) ◽  
pp. 226-230
Author(s):  
Jeongho Song ◽  
Junghye Eom ◽  
Yunyoung Noh ◽  
Young-Wook Kim ◽  
Ohsung Song
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Ultra High Pressure ◽  
Low Temperature Processing

High-pressure developments for resonant X-ray scattering experiments at I16

2020 ◽  
Vol 27 (2) ◽  
pp. 351-359
Author(s):  
I. Povedano ◽  
A. Bombardi ◽  
D. G. Porter ◽  
M. Burt ◽  
S. Green ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
The Body ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Geometry ◽  
Diamond Anvil ◽  
Membrane Cell ◽  
Ray Scattering

An experimental setup to perform high-pressure resonant X-ray scattering (RXS) experiments at low temperature on I16 at Diamond Light Source is presented. The setup consists of a membrane-driven diamond anvil cell, a panoramic dome and an optical system that allows pressure to be measured in situ using the ruby fluorescence method. The membrane cell, inspired by the Merrill–Bassett design, presents an asymmetric layout in order to operate in a back-scattering geometry, with a panoramic aperture of 100° in the top and a bottom half dedicated to the regulation and measurement of pressure. It is specially designed to be mounted on the cold finger of a 4 K closed-cycle cryostat and actuated at low-temperature by pumping helium into the gas membrane. The main parts of the body are machined from a CuBe alloy (BERYLCO 25) and, when assembled, it presents an approximate height of 20–21 mm and fits into a 57 mm diameter. This system allows different materials to be probed using RXS in a range of temperatures between 30 and 300 K and has been tested up to 20 GPa using anvils with a culet diameter of 500 µm under quasi-cryogenic conditions. Detailed descriptions of different parts of the setup, operation and the developed methodology are provided here, along with some preliminary experimental results.

PRESSURE-INDUCED SUPERCONDUCTIVITY IN SYMPLE METALS

2005 ◽  
Vol 19 (01n03) ◽  
pp. 259-261
Author(s):  
KATSUYA SHIMIZU
Keyword(s):  
Pressure Range ◽  
Diamond Anvil Cell ◽  
Molecular Crystals ◽  
Dilution Refrigerator ◽  
Extreme Condition ◽  
Organic Molecular Crystals ◽  
Ultra High Pressure ◽  
Experimental Apparatus ◽  
Diamond Anvil ◽  
Very Low Temperature

Experimental results in search for pressure-induced superconductivity are reviewed. Typical examples are simple inorganic and organic molecular crystals, magnetic metals, and elements. We have developed complex extreme condition of very low temperature down to 30 mK and ultra high pressure exceeding 200 GPa by assembling compact diamond-anvil cell (DAC) on a powerful 3 He /4 He dilution refrigerator. Using the newly developed apparatus and techniques, we have studied superconductivity in various materials in various pressure range. In this paper, we will shortly review our newly developed experimental apparatus and techniques and discuss about examples of pressure-induced superconductivity in simple metals.

Laser heating setup for diamond anvil cells for in situ synchrotron and in house high and ultra-high pressure studies

2019 ◽  
Vol 90 (10) ◽  
pp. 104501 ◽  
Author(s):  
T. Fedotenko ◽  
L. Dubrovinsky ◽  
G. Aprilis ◽  
E. Koemets ◽  
A. Snigirev ◽  
...  
Keyword(s):  
High Pressure ◽  
Laser Heating ◽  
Diamond Anvil Cells ◽  
Ultra High Pressure ◽  
High Pressure Studies ◽  
Diamond Anvil
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