R
R. K. Kremer
Researcher at Max Planck Society
Publications - 256
Citations - 6223
R. K. Kremer is an academic researcher from Max Planck Society. The author has contributed to research in topics: Magnetic susceptibility & Antiferromagnetism. The author has an hindex of 39, co-authored 240 publications receiving 5784 citations.
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Journal ArticleDOI
Coexistence of ferromagnetism and superconductivity in the hybrid ruthenate-cuprate compound RuSr 2 GdCu 2 O 8 studied by muon spin rotation and dc magnetization
Christian Bernhard,J. L. Tallon,Ch. Niedermayer,T. Blasius,Andrzej Golnik,E. Brücher,R. K. Kremer,D. R. Noakes,C. E. Stronach,Eduardo J. Ansaldo +9 more
TL;DR: In this article, the magnetic and superconducting properties of the hybrid ruthenate-cuprate compound (RuSr) were investigated by means of zero-field muon-spin rotation (ZF-\ensuremath{\mu}SR) and dc magnetization measurements.
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Thermodynamics of spin S = 1 / 2 antiferromagnetic uniform and alternating-exchange Heisenberg chains
David C. Johnston,R. K. Kremer,Matthias Troyer,Xun-Li Wang,Andreas Klümper,S.L. Bud'ko,Alex Panchula,Paul C. Canfield +7 more
TL;DR: In this paper, the magnetic susceptibility and specific heat of the Heisenberg chain were studied for the entire range $0l~\ensuremath{\alpha}l~1$ of the alternation parameter of the alternating-exchange parameter.
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Quantum helimagnetism of the frustrated spin-1/2 chain LiCuVO4
Mechthild Enderle,C. Mukherjee,B. Fåk,R. K. Kremer,Jean-Marc Broto,H. Rosner,S.-L. Drechsler,Johannes Richter,Jiří Málek,Andrey Prokofiev,Wolf Assmus,S. Pujol,J.-L. Raggazzoni,H. Rakoto,M. Rheinstädter,Henrik M. Rønnow +15 more
TL;DR: Inelastic neutron scattering, susceptibility, and high-field magnetization identify LiCuVO4 as a nearest-neighbour ferromagnetic, next-nearest-nighbour frustrated, quasi-one-dimensional helimagnet as discussed by the authors.
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Specific heat measurements of Ba0.68 K0.32 Fe2 As2 single crystals: evidence for a multiband strong-coupling superconducting state
P. Popovich,Alexander Boris,Alexander Boris,Oleg V. Dolgov,Alexandre Avraamovitch Golubov,Dunlu Sun,Chengtian Lin,R. K. Kremer,Bernhard Keimer +8 more
TL;DR: It is shown that an Eliashberg model with two hole and two electron bands gives the correct values of Tc, the superconducting gaps, and the free-energy difference.
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Evidence for a bulk Meissner state in the ferromagnetic superconductor RuSr 2 GdCu 2 O 8 from dc magnetization
TL;DR: In this article, it was shown that the ferromagnetic superconductor Ru-1212 exhibits a large diamagnetic signal at low temperature and low magnetic field corresponding to a bulk Meissner phase.