Search Results - "Vorderwisch, P."
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1
Bose-Einstein condensation of the triplet states in the magnetic insulator TlCuCl3
Published in Nature (London) (01-05-2003)“…Bose-Einstein condensation denotes the formation of a collective quantum ground state of identical particles with integer spin or intrinsic angular momentum…”
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2
Antiferromagnetic order induced by an applied magnetic field in a high-temperature superconductor
Published in Nature (London) (17-01-2002)“…One view of the high-transition-temperature (high-Tc) copper oxide superconductors is that they are conventional superconductors where the pairing occurs…”
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3
Observation of phasons in the magnetic shape memory alloy Ni2MnGa
Published in Europhysics letters (01-03-2007)“…An inelastic neutron scattering study of the lattice dynamics of the martensite phase of the ferromagnetic shape memory alloy, Ni2MnGa, reveals the presence of…”
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4
Three-dimensionality of field-induced magnetism in a high-temperature superconductor
Published in Nature materials (01-09-2005)“…Many physical properties of high-temperature superconductors are two-dimensional phenomena derived from their square-planar CuO2 building blocks. This is…”
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5
Quantum criticality in an organic magnet
Published in Physical review letters (30-06-2006)“…Exchange interactions between S=1/2 sites in piperazinium hexachlorodicuprate produce a frustrated bilayer magnet with a singlet ground state. We have…”
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6
Field-driven phase transitions in a quasi-two-dimensional quantum antiferromagnet
Published in New journal of physics (16-02-2007)“…We report magnetic susceptibility, specific heat, and neutron scattering measurements as a function of applied magnetic field and temperature to characterize…”
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7
Spin excitations in an anisotropic bond-alternating quantum S = 1 chain in a magnetic field : Contrast to haldane spin chains
Published in Physical review letters (06-05-2005)“…Inelastic neutron scattering experiments on the S = 1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C9D24N4)(NO2)ClO4 have been performed under…”
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8
Phonon dispersion in the ferromagnetic shape memory alloy Ni2MnGa studied by neutron spectroscopy
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (25-11-2006)“…Neutron spectroscopy is an ideal technique to study the structure and dynamics of crystals. For the ferromagnetic shape memory alloy Ni2MnGa, all previously…”
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9
Dynamics of an anisotropic Haldane antiferromagnet in a strong magnetic field
Published in Physical review. B, Condensed matter and materials physics (18-02-2004)Get full text
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10
Neutron scattering study of the field-dependent ground state and the spin dynamics in spin-one-half NH4CuCl3
Published in Physical review letters (16-07-2004)“…Elastic and inelastic neutron scattering experiments have been performed on the dimer spin system NH4CuCl3, which shows plateaus in the magnetization curve at…”
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11
Free NH3 quantum rotations in Hofmann clathrates: structure factors and line widths studied by inelastic neutron scattering
Published in Chemical physics (10-01-2005)Get full text
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12
Enhancement of Magnetic Order in the Incommensurate Phase of Mg-doped CuGeO3
Published in Journal of the Physical Society of Japan (01-02-2005)“…We present neutron elastic scattering results at high magnetic fields for Mg-doped CuGeO3. For low magnesium concentrations, where a spin-Peierls phase is…”
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13
Neutron scattering study of the field-induced soliton lattice in CuGeO3
Published in Physical review letters (08-05-2000)“…CuGeO3 undergoes a transition from a spin-Peierls phase to an incommensurate phase at a critical field of H(c) approximately 12.5 T. In the high-field phase a…”
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14
Spin dynamics in the BEC phase of the S=1/2 quantum spin system TlCuCl 3
Published in Journal of magnetism and magnetic materials (2004)“…The copper salt S=1/2 TlCuCl 3 is a three-dimensional quantum spin system with a singlet ground-state of dimer origin. A spin energy gap Δ≈0.7 meV separates…”
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15
Magnetic and quadrupolar ordering in TmNi2B2C
Published in Physica. B, Condensed matter (01-11-2006)“…We present neutron and high-energy synchrotron X-ray diffraction studies to show that the anomalous antiferromagnetic (AF) phase diagram of TmNi2B2C in an…”
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16
Field-induced transition between magnetically disordered and ordered phases in underdoped La2-xSrxCuO4
Published in Physical review. B, Condensed matter and materials physics (01-06-2005)Get full text
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17
Influence of the guest molecule on the rotational potential for NH3 groups in Hofmann clathrates
Published in Chemical physics (01-11-2000)Get full text
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18
Spin dynamics of quasi-2D ferromagnet La1.2Sr1.8Mn2O7
Published in Journal of alloys and compounds (09-08-2001)Get full text
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19
Spin waves and phonon anomaly in the Heusler alloy Ni2MnGa
Published in Physica. B, Condensed matter (01-06-1997)Get full text
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20
Neutron spectroscopy of localized modes in CeD2−xHy
Published in Journal of alloys and compounds (20-05-1997)Get full text
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