Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts
The antiferromagnetic (AFM) state has been investigated in the three heavy-fermion compounds URu₂Si₂,UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5-20 K and magnetic fields 0-28 T. The zero-bias maximum in dV/dI(V) for URu₂Si₂ points to a partially...
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| Дата: | 2001 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2001
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| Назва видання: | Физика низких температур |
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| Цитувати: | Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts / Yu. G. Naidyuk, O.E. Kvitnitskaya, A.G. M. Jansen, P.Wyder, C.Geibel, A.A. Menovsky // Физика низких температур. — 2001. — Т. 27, № 6. — С. 668-673. — Бібліогр.: 20 назв. — англ. |
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irk-123456789-1286842018-02-11T20:38:00Z Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts Naidyuk, Yu. G. Kvitnitskaya, O. E. Jansen, A. G. M. Wyder, P. Geibel, C. Menovsky, A. A. Электpонные свойства металлов и сплавов The antiferromagnetic (AFM) state has been investigated in the three heavy-fermion compounds URu₂Si₂,UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5-20 K and magnetic fields 0-28 T. The zero-bias maximum in dV/dI(V) for URu₂Si₂ points to a partially gapped Fermi surface related to the itinerant nature of the AFM state, contrary to the case of UPd₂Al₃, where analogous features have not been found. The AFM state in UNi₂Al₃ has more similarities with URu₂Si₂. For URu₂Si₂, the same critical field of about 40 T along the easy axis c is found for all features in dV/dI(V), corresponding to the Néel temperature, the gap in the electronic density of states, and presumably the ordered moments. The antiferromagnetic (AFM) state is investigated in the three heavy-fermion compounds URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5–20 K and magnetic fields 0–28 T. The zero-bias maximum in dV/dI(V) for URu₂Si₂ points to a partially gapped Fermi surface related to the itinerant nature of the AFM state, contrary to the case of UPd₂Al₃, where analogous features have not been found. The AFM state in UNi₂Al₃ has more similarities with URu₂Si₂. For URu₂Si₂, the same critical field of about 40 T along the easy axis c is found for all features in dV/dI(V), corresponding to the Néel temperature, the gap in the electronic density of states, and presumably the ordered 2001 Article Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts / Yu. G. Naidyuk, O.E. Kvitnitskaya, A.G. M. Jansen, P.Wyder, C.Geibel, A.A. Menovsky // Физика низких температур. — 2001. — Т. 27, № 6. — С. 668-673. — Бібліогр.: 20 назв. — англ. 0132-6414 PACS: 71.28.+d, 73.40.Jn, 75.30.-m http://dspace.nbuv.gov.ua/handle/123456789/128684 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Электpонные свойства металлов и сплавов Электpонные свойства металлов и сплавов |
| spellingShingle |
Электpонные свойства металлов и сплавов Электpонные свойства металлов и сплавов Naidyuk, Yu. G. Kvitnitskaya, O. E. Jansen, A. G. M. Wyder, P. Geibel, C. Menovsky, A. A. Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts Физика низких температур |
| description |
The antiferromagnetic (AFM) state has been investigated in the three heavy-fermion compounds URu₂Si₂,UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5-20 K and magnetic fields 0-28 T. The zero-bias maximum in dV/dI(V) for URu₂Si₂ points to a partially gapped Fermi surface related to the itinerant nature of the AFM state, contrary to the case of UPd₂Al₃, where analogous features have not been found. The AFM state in UNi₂Al₃ has more similarities with URu₂Si₂. For URu₂Si₂, the same critical field of about 40 T along the easy axis c is found for all features in dV/dI(V), corresponding to the Néel temperature, the gap in the electronic density of states, and presumably the ordered moments. The antiferromagnetic (AFM) state is investigated in the three heavy-fermion compounds URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ by measuring dV/dI(V) curves of point contacts at different temperatures 1.5–20 K and magnetic fields 0–28 T. The zero-bias maximum in dV/dI(V) for URu₂Si₂ points to a partially gapped Fermi surface related to the itinerant nature of the AFM state, contrary to the case of UPd₂Al₃, where analogous features have not been found. The AFM state in UNi₂Al₃ has more similarities with URu₂Si₂. For URu₂Si₂, the same critical field of about 40 T along the easy axis c is found for all features in dV/dI(V), corresponding to the Néel temperature, the gap in the electronic density of states, and presumably the ordered |
| format |
Article |
| author |
Naidyuk, Yu. G. Kvitnitskaya, O. E. Jansen, A. G. M. Wyder, P. Geibel, C. Menovsky, A. A. |
| author_facet |
Naidyuk, Yu. G. Kvitnitskaya, O. E. Jansen, A. G. M. Wyder, P. Geibel, C. Menovsky, A. A. |
| author_sort |
Naidyuk, Yu. G. |
| title |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts |
| title_short |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts |
| title_full |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts |
| title_fullStr |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts |
| title_full_unstemmed |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts |
| title_sort |
magnetic state in uru₂si₂, upd₂al₃, and uni₂al₃ probed by point contacts |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2001 |
| topic_facet |
Электpонные свойства металлов и сплавов |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/128684 |
| citation_txt |
Magnetic state in URu₂Si₂, UPd₂Al₃, and UNi₂Al₃ probed by point contacts / Yu. G. Naidyuk, O.E. Kvitnitskaya, A.G. M. Jansen, P.Wyder, C.Geibel, A.A. Menovsky // Физика низких температур. — 2001. — Т. 27, № 6. — С. 668-673. — Бібліогр.: 20 назв. — англ. |
| series |
Физика низких температур |
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