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| 001 | 20759 | ||
| 005 | 20240529111514.0 | ||
| 024 | 7 | _ | |2 pmid |a pmid:22510752 |
| 024 | 7 | _ | |2 DOI |a 10.1088/0953-8984/24/20/205601 |
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| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 530 |
| 084 | _ | _ | |2 WoS |a Physics, Condensed Matter |
| 100 | 1 | _ | |0 P:(DE-HGF)0 |a Alekseev, P.A. |b 0 |
| 245 | _ | _ | |a Interplay of low-energy phonons and magnetiv excitations in the Kondo insulator YbB12 |
| 260 | _ | _ | |a Bristol |b IOP Publ. |c 2012 |
| 300 | _ | _ | |a 205601 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
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| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |0 3703 |a Journal of Physics: Condensed Matter |v 24 |x 0953-8984 |y 20 |
| 500 | _ | _ | |a We are grateful to D Reznik for fruitful discussions and to the LLB and ILL for hospitality during the experiments. Financial support from RFBR grants 08-02-00430 and 11-02-00121 is highly appreciated. |
| 520 | _ | _ | |a Peculiarities in the lattice dynamics of the Kondo insulator Y bB(12) have been studied by inelastic neutron scattering. Selected phonon modes were traced above and below the temperature region (T ~ 50 K) where the gap opens in the electron density of states. The intensities of some low-energy modes exhibit an anomalous temperature dependence for q vectors close to the Brillouin zone boundary, suggesting a renormalization of the phonon eigenvectors. This effect is thought to arise from a coupling with magnetic excitations of the same symmetry, which exist at nearby energies. It is argued that this magnetovibrational coupling may in turn play a role in the steep temperature crossover existing in Y bB(12) between the low-temperature (Kondo insulator) and high-temperature (incoherent spin-fluctuation) regimes, which is rapidly suppressed by lighter Zr substitution. |
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| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Mignot, J.-M. |b 1 |
| 700 | 1 | _ | |0 P:(DE-Juel1)141702 |a Nemkovski, K.S. |b 2 |u FZJ |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Rybina, A.V. |b 3 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Lazukov, V.N. |b 4 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Ivanov, A.S. |b 5 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Iga, F. |b 6 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Takabatake, T. |b 7 |
| 773 | _ | _ | |0 PERI:(DE-600)1472968-4 |a 10.1088/0953-8984/24/20/205601 |g Vol. 24, p. 205601 |p 205601 |q 24<205601 |t Journal of physics / Condensed matter |v 24 |x 0953-8984 |y 2012 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1088/0953-8984/24/20/205601 |
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| 914 | 1 | _ | |y 2012 |
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