Effect of high pressure on charge density wave formation and magnetic structure in the cubic high pressure phase of TbGe2.85статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 февраля 2017 г.
Аннотация:In this work the charge density wave (CDW) and magnetic ordering for the high-pressure phase of TbGe2.85 with the AuCu3 structure has been studied by means of electrical resistivity and neutron powder diffraction at pressures up to 3 and 5 GPa, respectively. The electrical resistivity measurements showed that the charge density wave transition temperature T_CDW decreases with increasing the external pressure and the CDW transition in TbGe2.85 is suppressed at P = 2.6 GPa and the Neel temperature T_N is approximately independent of the pressure. The neutron powder diffraction at low temperature and high pressure reveals the appearance of the second magnetic commensurate phase at P = 1.2 GPa with wave vector k = (1/2,0,0). The calculation of electronic structure of the TbGe3 (AuCu3-type structure) compound was also performed. The high value of electronic states at the Fermi level confirms the instabilities of the stoichiometric compound TbGe3.