Group leader

Medvediev, Sergiy
Sergiy Medvediev
Group leader

Phone: +49 351 4646-3203
Room: B1.3.03

High pressure

Group members

Mu, Qingge
Qingge Mu
Post-doctoral research scientist

Phone: +49 351 4646-3427
Room: B3.3.27

High pressure

ElGhazali, Moaz
Moaz ElGhazali
Graduate student

Phone: +49 351 4646-2273
Room: B1.3.01

High pressure

Former Group Members

Naumov, Pavel
Pavel Naumov
Post-doctoral research scientist

High pressure

Publication highlight

Taras Palasyuk, Ivan Troyan, Mikhail Eremets, Vadym Drozd, Sergey Medvedev, Patryk Zaleski-Ejgierd, Ewelina Magos-Palasyuk, Hongbo Wang, Stanimir A. Bonev, Dmytro Dudenko, and Pavel Naumov, "Ammonia as a case study for the spontaneous ionization of a simple hydrogen-bonded compound," Nature Communications 5, 1-7 (2014).

High Pressure

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High pressure is a powerful method to tune in controllable manner the interatomic distances in crystal and the consequent properties of the investigated system. In response to application of high pressure, condensed matter undergoes structural, electronic, magnetic and other phase transitions leading to unusual and sometimes unexpected properties of matter [1].

The knowledge of the structure of matter under compression is both of technological and fundamental interest. The science of matter at high density is now providing bases for fundamental understanding of atomic and molecular interactions in matter, giving new insights into the properties of materials at ambient conditions, and indicating the roots for the synthesis of the novel materials with exotic properties.

Although setting up a high pressure experiment is very difficult and time consuming, studies of pressure effect on properties of matter can now be performed using nearly all the experimental techniques of condensed-matter physics in temperature range from mK to thousands of K and/or at high magnetic fields. In our group we study electronic, magnetic and structural properties of matter under pressures up to 100 GPa (1 million atmospheres) by means of electrical conductivity and magnetic susceptibility measurements, high pressure Mössbauer spectroscopy, Raman spectroscopy and synchrotron X-ray powder diffraction.

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