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Pregled bibliografske jedinice broj: 363133

Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals

Grafe, Hans-Joachim; Hammerath, Franziska; Paar, Dalibor; Urbanik, G.; Kataev, V.; Wolf, Th.; Khaliullin, G.; Büchner, B.
Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals // 6th INTERNATIONAL CONFERENCE OF THE STRIPES SERIES, Quantum Phenomena in Complex Matter / Bianconi, A (ur.).
Erice: SUPERSTRIPES-ONLUS and ETTORE MAJORANA FOUNDATION AND CENTRE FOR SCIENTIFIC CULTURE, 2008. str. 19-19 (predavanje, međunarodna recenzija, sažetak, znanstveni)

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Naslov
Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals

Autori
Grafe, Hans-Joachim ; Hammerath, Franziska ; Paar, Dalibor ; Urbanik, G. ; Kataev, V. ; Wolf, Th. ; Khaliullin, G. ; Büchner, B.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6th INTERNATIONAL CONFERENCE OF THE STRIPES SERIES, Quantum Phenomena in Complex Matter / Bianconi, A - Erice : SUPERSTRIPES-ONLUS and ETTORE MAJORANA FOUNDATION AND CENTRE FOR SCIENTIFIC CULTURE, 2008, 19-19

Skup
6th INTERNATIONAL CONFERENCE OF THE STRIPES SERIES, Quantum Phenomena in Complex Matter

Mjesto i datum
Erice, Italija, 26.07.2008. - 01.08.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
high temperature superconductivity; impurity doping; pseudogap; NMR; NQR

Sažetak
We present 63, 65Cu Nuclear Quadrupole Resonance (NQR) and 17O Nulcear Magnetic Resonance (NMR) measurements on (Eu, Nd)Ba2(Cu, Ni, Zn)3O6+y single crystals heavily doped with magnetic (Ni) and non-magnetic (Zn) impurities. Owing to the impurity doping only traces of superconductivity are found at low temperatures for both, Ni and Zn doping. Nevertheless, the effect of Ni on the magnetic correlations is completely different from that of the non-magnetic Zn doping. The Ni enhances magnetic correlations and induces a wipeout of both, the copper NQR and oxygen NMR signal comparable to that found in stripe ordered lanthanum cuprates. In contrast, the magnetism is suppressed in the Zn doped samples where no wipeout effect is observed and the nuclear spin lattice relaxation rate of the Cu shows a pseudogap like decrease at low temperatures. Our findings are in a striking correspondence with the different impact of Ni and Zn impurities on the charge pseudogap evidenced by recent optical data, uncovering thereby a close relationship between the magnetic correlations and pseudogap phenomena.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-1191458-1022 - Mikrovalna istraživanja novih materijala (Požek, Miroslav, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Dalibor Paar (autor)

Citiraj ovu publikaciju:

Grafe, Hans-Joachim; Hammerath, Franziska; Paar, Dalibor; Urbanik, G.; Kataev, V.; Wolf, Th.; Khaliullin, G.; Büchner, B.
Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals // 6th INTERNATIONAL CONFERENCE OF THE STRIPES SERIES, Quantum Phenomena in Complex Matter / Bianconi, A (ur.).
Erice: SUPERSTRIPES-ONLUS and ETTORE MAJORANA FOUNDATION AND CENTRE FOR SCIENTIFIC CULTURE, 2008. str. 19-19 (predavanje, međunarodna recenzija, sažetak, znanstveni)
Grafe, H., Hammerath, F., Paar, D., Urbanik, G., Kataev, V., Wolf, T., Khaliullin, G. & Büchner, B. (2008) Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals. U: Bianconi, A. (ur.)6th INTERNATIONAL CONFERENCE OF THE STRIPES SERIES, Quantum Phenomena in Complex Matter.
@article{article, author = {Grafe, Hans-Joachim and Hammerath, Franziska and Paar, Dalibor and Urbanik, G. and Kataev, V. and Wolf, Th. and Khaliullin, G. and B\"{u}chner, B.}, editor = {Bianconi, A.}, year = {2008}, pages = {19-19}, keywords = {high temperature superconductivity, impurity doping, pseudogap, NMR, NQR}, title = {Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals}, keyword = {high temperature superconductivity, impurity doping, pseudogap, NMR, NQR}, publisher = {SUPERSTRIPES-ONLUS and ETTORE MAJORANA FOUNDATION AND CENTRE FOR SCIENTIFIC CULTURE}, publisherplace = {Erice, Italija} }
@article{article, author = {Grafe, Hans-Joachim and Hammerath, Franziska and Paar, Dalibor and Urbanik, G. and Kataev, V. and Wolf, Th. and Khaliullin, G. and B\"{u}chner, B.}, editor = {Bianconi, A.}, year = {2008}, pages = {19-19}, keywords = {high temperature superconductivity, impurity doping, pseudogap, NMR, NQR}, title = {Nuclear Magnetic Resonance evidence for correlations between antiferromagnetism and pseudogap effects in Zn- and Ni-doped (Eu, Nd)Ba2Cu3O6+y single crystals}, keyword = {high temperature superconductivity, impurity doping, pseudogap, NMR, NQR}, publisher = {SUPERSTRIPES-ONLUS and ETTORE MAJORANA FOUNDATION AND CENTRE FOR SCIENTIFIC CULTURE}, publisherplace = {Erice, Italija} }

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