M
Martin Greven
Researcher at University of Minnesota
Publications - 231
Citations - 10279
Martin Greven is an academic researcher from University of Minnesota. The author has contributed to research in topics: Superconductivity & Pseudogap. The author has an hindex of 50, co-authored 219 publications receiving 9424 citations. Previous affiliations of Martin Greven include Stanford University & Brookhaven National Laboratory.
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Journal ArticleDOI
Doping dependence of the spatially modulated dynamical spin correlations and the superconducting-transition temperature in La 2-x Sr x CuO 4
Kohta Yamada,Chul-Ho Lee,K. Kurahashi,Junichiro Wada,S. Wakimoto,S. Ueki,Hisamichi Kimura,Yasuo Endoh,S. Hosoya,Gen Shirane,Robert J. Birgeneau,Martin Greven,Marc Kastner,Young-June Kim +13 more
TL;DR: In this article, a low-energy spin-fluctuation peak position shifts from ($\frac{1}{2}$ to ($ \frac{ 1}{2$\ifmmode\pm\else\textpm\fi{ \ensuremath{\delta}=x$, and the peak momentum width of the spin fluctuations at low energies is small throughout the superconducting concentration region.
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Magnetic excitations in pure, lightly doped, and weakly metallic La2CuO4.
B. Keimer,N. Belk,Robert J. Birgeneau,A. Cassanho,Changchen Chen,Martin Greven,Marc Kastner,Amnon Aharony,Yasuo Endoh,Ross Erwin,Gen Shirane +10 more
TL;DR: A comprehensive neutron-scattering study of the evolution of the magnetic excitations in La[sub 2[minus][ital x]]Sr[sub [ital x],CuO[sub 4] for 0[le][ital X][le]0.04.
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Effect of chemical inhomogeneity in bismuth-based copper oxide superconductors
Hiroshi Eisaki,Nobu-Hisa Kaneko,Donglai Feng,Andrea Damascelli,P. K. Mang,Kyle Shen,Zhi-Xun Shen,Martin Greven +7 more
TL;DR: In this article, the effect of chemical inhomogeneities on the superconducting transition temperature was examined and it was shown that partial substitution of Sr by Ln (Ln = La, Pr, Nd, Sm, Eu, Gd, and Bi) results in a monotonic decrease of the transition temperature with increasing ionic radius mismatch.
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E versus k relations and many body effects in the model insulating copper oxide Sr2CuO2Cl2.
Barrett Wells,Zhi-Xun Shen,A. Y. Matsuura,D. M. King,Marc Kastner,Martin Greven,Robert J. Birgeneau +6 more
TL;DR: A comparison of the data with spectra previously reported on metallic samples leads to new suggestions for the phenomenology of doping, particularly in many regions of the Brillouin zone.
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Quantum critical behaviour in a high- T c superconductor
D. van der Marel,D. van der Marel,H. J. A. Molegraaf,H. J. A. Molegraaf,Jan Zaanen,Zohar Nussinov,Zohar Nussinov,Fabrizio Carbone,Fabrizio Carbone,Andrea Damascelli,Hiroshi Eisaki,Martin Greven,P.H. Kes,Ming Li +13 more
TL;DR: It is demonstrated that the experimentally measured phase angle agrees precisely with the exponent of the optical conductivity, which points towards a quantum phase transition of an unconventional kind in the high-Tc superconductors.