How magnetic order hosts superconductivity: the case of superconducting ruthenocuprates (CROSBI ID 493894)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Prester, Mladen ; Živković, Ivica ; Drobac, Đuro ; Hirai, Y. ; Frazer, B.H. ; Ariosa, D. ; Berger, H. ; Pavuna, Davor ; Margaritondo, G. ; Felner, I. ; Onellion, M.
engleski
How magnetic order hosts superconductivity: the case of superconducting ruthenocuprates
The way magnetic and superconducting order influences each other, the issue being raised, during the decades, in the context of low-Tc borides, Chevrel phases and carbides, remains to be at least equally interesting in the context of high-Tc cuprates. In ruthenocuprates, superconductivity sets-in inside a magnetically ordered phase, revealing a true microscopic coexistence of the two order parameters below, typically, 30 K. We report on remarkable variations characterizing magnetism of the two known superconducting ruthenocuprates. While one of them (named Ru1212) develops spontaneous antiferromagnetic order, the other one (named Ru1222) reveals a spontaneous ferromagnetism. Our high-resolution ac susceptibility studies have discovered a reach magnetic dynamics and a &#8216 ; soft metamagnetism&#8217 ; characterizing Ru1222, compatible with the scenario of ferromagnetism representing just a component of a more complex global magnetic order in this compound.
superconductivity; ferromagnetism; magnetic dynamics
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Podaci o prilogu
2002.
objavljeno
Podaci o matičnoj publikaciji
Podaci o skupu
From Solid State to Biophysics
predavanje
13.06.2002-19.06.2002
Dubrovnik, Hrvatska