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Inelastic neutron scattering experiments are performed on a nanoporous metal complex Cu-Trans-1,4-Cyclohexanedicarboxylic Acid (Cu-CHD) adsorbing O2 molecules to identify the spin model of the O2-based magnet realized in the host complex.…

Strongly Correlated Electrons · Physics 2016-03-23 M. Soda , Y. Honma , S. Takamizawa , S. Ohira-Kawamura , K. Nakajima , T. Masuda

The low temperature excitations in the anisotropic antiferromagnetic Fe_{1-x} Zn_x F_2 for x=0.25 and 0.31, at and just above the magnetic percolation threshold concentration x_p=0.25, were measured using inelastic neutron scattering. The…

Strongly Correlated Electrons · Physics 2012-07-19 G. Alvarez , N. Aso , D. P. Belanger , A. M. Durand , V. Martin-Mayor , K. Motoya , Y. Muro

Inelastic neutron scattering for temperatures below 30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin 1/2 Mo3O13 molecules. Apparently gapless (\Delta < 0.2…

Inelastic neutron scattering measurements mapping the in-plane magnetic interactions of Na0.5CoO2 reveal dispersive excitations at points above an energy gap Eg = 11.5(5) meV at the superstructural Bragg reflections. The excitations are…

Strongly Correlated Electrons · Physics 2007-05-23 J. Wooldridge , G. Balakrishnan , D. McK. Paul , C. Frost , P. Bourges , M. R. Lees

Polarized neutron inelastic scattering has been used to measure spin excitations in ferromagnetic La$_{0.82}$Sr$_{0.18}$CoO$_{3}$. The magnon spectrum of these spin excitations is well defined at low energies but becomes heavily damped at…

Strongly Correlated Electrons · Physics 2010-10-08 R. A. Ewings , P. G. Freeman , M. Enderle , J. Kulda , D. Prabhakaran , A. T. Boothroyd

Collective excitations in magnetic materials can be investigated by means of inelastic neutron scattering. We show that this experimental method gives access to the complete spectrum of magnetic fluctuations through the energy- and…

Strongly Correlated Electrons · Physics 2007-05-23 B. Roessli , P. Böni

We studied magnetic excitations in a low-temperature ferroelectric phase of the multiferroic YMn2O5 using inelastic neutron scattering (INS). We identify low-energy magnon modes and establish a correspondence between the magnon peaks…

Strongly Correlated Electrons · Physics 2015-05-19 J. -H. Kim , M. A. van. der. Vegte , A. Scaramucci , S. Artyukhin , J. -H. Chung , S. Park , S. -W. Cheong , M. Mostovoy , S. -H. Lee

Magnetic excitations in a weakly coupled spin dimers and chains compound Cu2Fe2Ge4O13 are measured by inelastic neutron scattering. Both structure factors and dispersion of low energy excitations up to 10 meV energy transfer are well…

Strongly Correlated Electrons · Physics 2009-11-11 T. Masuda , A. Zheludev , B. Sales , S. Imai , K. Uchinokura , S. Park

We present inelastic neutron scattering experiments on a single-domain crystal of lightly-doped La1.96Sr0.04CuO4. We find that the magnetic excitation spectrum in this insulating phase with a diagonal incommensurate spin modulation is…

Strongly Correlated Electrons · Physics 2009-11-13 M. Matsuda , M. Fujita , S. Wakimoto , J. A. Fernandez-Baca , J. M. Tranquada , K. Yamada

We performed inelastic neutron scattering experiments on Cu$_2$$^{114}$Cd$^{11}$B$_2$O$_6$ powder. The magnetic excitations at low temperatures are similar to those of the interacting spin-1/2 tetramers in the ordered state. The weak…

Strongly Correlated Electrons · Physics 2015-12-09 Masashi Hase , Kenji Nakajima , Seiko Ohira-Kawamura , Yukinobu Kawakita , Tatsuya Kikuchi , Masashige Matsumoto

We carried out inelastic neutron scattering experiments on a powdered sample of the antiferromagnetic (AFM) uniform spin-1/2 chain compound CuSb2O6.The magnetic excitations appear in the energy range of 1.8 to 13 meV at 2.5 K below the AFM…

Strongly Correlated Electrons · Physics 2026-04-20 Masashi Hasea , Minoru Soda , Takatsugu Masuda , Shinichi Itoh , Tetsuya Yokoo

Fe3-xGeTe2 is an itinerant ferromagnet composed of two-dimensional layers weakly connected by van der Waals bonding that shows a variety of intriguing phenomena. Inelastic neutron scattering measurements on bulk single crystals of…

Strongly Correlated Electrons · Physics 2019-03-27 S. Calder , A. I. Kolesnikov , A. F. May

In this paper detailed neutron scattering measurements of the magnetic excitation spectrum of CuCrO$_2$ in the ordered state below $T_{\rm{N1}}=24.2$ K are presented. The spectra are analyzed using a model Hamiltonian which includes…

We use inelastic neutron scattering to measure the magnetic excitations in the underdoped superconductor La2-xSrxCuO4 (x=0.085, Tc=22 K) over energy and temperatures ranges 5 < E < 200 meV and 5 < T < 300 K respectively. At high temperature…

Superconductivity · Physics 2009-04-23 O. J. Lipscombe , B. Vignolle , T. G. Perring , C. D. Frost , S. M. Hayden

Magnetic excitations of the effective spin $S$=1/2 dimerized magnet Ba$_2$CoSi$_2$O$_6$Cl$_2$ have been probed directly via inelastic neutron scattering experiments at temperatures down to 4 K. We observed five types of excitation at 4.8,…

Inelastic neutron scattering is used to investigate the collective magnetic excitations of the high-temperature superconductor parent antiferromagnet La2CuO4. We find that while the lower energy excitations are well described by spin-wave…

Strongly Correlated Electrons · Physics 2010-12-13 N. S. Headings , S. M. Hayden , R. Coldea , T. G. Perring

Magnetic excitations in a Ni$_4$ magnetic molecule were investigated by inelastic neutron scattering and bulk susceptibility ($\chi_\text{bulk}$) techniques. The magnetic excitation spectrum obtained from the inelastic neutron scattering…

Strongly Correlated Electrons · Physics 2015-06-04 K. Iida , S. -H. Lee , T. Onimaru , K. Matsubayashi , T. J. Sato

We present powder inelastic neutron scattering measurements of the S=1 dimerized antiferromagnet Ba$_3$Mn$_2$O$_8$. The $T=1.4$ K magnetic spectrum exhibits a spin-gap of $\Delta \approx 1.0$ meV and a dispersive spectrum with a bandwidth…

Strongly Correlated Electrons · Physics 2009-11-13 M. B. Stone , M. D. Lumsden , Y. Qiu , E. C. Samulon , C. D. Batista , I. R. Fisher

Recent neutron-scattering experiments on La(2-x)Sr(x)CuO4 single crystals by Wakimoto et al. have revealed that elastic magnetic peaks appear at low temperatures in both insulating (x=0.02-0.05) and superconducting (x=0.06) samples. We have…

We present the detailed inelastic neutron scattering measurements of the noncollinear antiferromagnet Mn$_3$Ge. Time-of-flight and triple-axis spectroscopy experiments were conducted at the temperature of 6~K, well below the high magnetic…

Strongly Correlated Electrons · Physics 2019-07-01 A. S. Sukhanov , M. S. Pavlovskii , Ph. Bourges , H. C. Walker , K. Manna , C. Felser , D. S. Inosov
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