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19972023
most citedSpatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene

2.5k citations

Showing 2012 · cond-mat.str-elShow all

9 papers · 2 filters

cond-mat.str-el2012★ 32 cited

Field-induced quantum soliton lattice in a frustrated two-leg spin-1/2 ladder

F. Casola, T. Shiroka, A. Feiguin +10

The field-induced quantum phase transitions (QPT) of the spin ladder material Bi(Cu(1-x)Znx)2PO6 have been investigated via 31P nuclear magnetic resonance (NMR) on single-crystal s…

cond-mat.str-el2012★ 13 cited

Bond Randomness Induced Magnon Decoherence in a Spin-1/2 Ladder Compound

B. Náfrádi, T. Keller, H. Manaka +3

We have used a combination of neutron resonant spin-echo and triple-axis spectroscopies to determine the energy and linewidth of the magnon resonance in IPA-Cu(ClBr$_{0.05…

cond-mat.str-el2012★ 68 cited

Microscopic Coexistence of Antiferromagnetic and Spin-Glass States

S. Chillal, M. Thede, F. J. Litterst +4

The disordered antiferromagnet \pfn (\pfns) is investigated in a wide temperature range by combining Mössbauer spectroscopy and neutron diffraction experiments. It is demonstrated…

cond-mat.str-el2012★ 19 cited

Excitations in a quantum spin liquid with random bonds

D. Huvonen, S. Zhao, G. Ehlers +3

We present results of inelastic neutron scattering study on two bond disordered quasi twodimensional quantum magnets (CHN)Cu(ClBr) with x=0.035 and…

cond-mat.str-el2012★ 21 cited

Asymmetric Thermal Lineshape Broadening in a Gapped 3-Dimensional Antiferromagnet - Evidence for Strong Correlations at Finite Temperature

D. L. Quintero-Castro, B. Lake, A. T. M. N. Islam +6

It is widely believed that magnetic excitations become increasingly incoherent as temperature is raised due to random collisions which limit their lifetime. This picture is based o…

cond-mat.str-el2012★ 13 cited

Dimensional crossover of spin chains in a transverse staggered field: an NMR study

F. Casola, T. Shiroka, V. Glazkov +6

Heisenberg spin-1/2 chain materials are known to substantially alter their static and dynamic properties when experiencing an effective transverse staggered field originating from…

cond-mat.str-el2012★ 34 cited

Phase Diagram of the Dzyaloshinskii-Moriya Helimagnet Ba2CuGe2O7 in Canted Magnetic Fields

S. Muhlbauer, S. Gvasaliya, E. Pomjakushina +1

The evolution of different magnetic structures of non-centrosymmetric Ba2CuGe2O7 is systematically studied as function of the orientation of the magnetic field H. Neutron diffracti…

cond-mat.str-el2012★ 16 cited

Magnetic-field induced multiferroicity in a quantum critical frustrated spin liquid

F. Schrettle, S. Krohns, P. Lunkenheimer +4

Dielectric spectroscopy is used to check for the onset of polar order in the quasi one-dimensional quantum spin system Sul-Cu2Cl4 when passing from the spin-liquid state into the o…

cond-mat.str-el2012★ 50 cited

Field-induced criticality in a gapped quantum magnet with bond disorder

D. Hüvonen, S. Zhao, M. Månsson +6

Neutron diffraction and calorimetric measurements are used to study the field-induced quantum phase transition in piperazinium-Cu(ClBr) (, x=3.5% and x=7.5…