Zobrazeno 1 - 10
of 126
pro vyhledávání: '"J.P. Boucher"'
Publikováno v:
Physica B: Condensed Matter. 350:E261-E264
The field-induced magnetic phase occurring above H c 1 ≃1.5 T in Cs3Cr2Br9 has been investigated by means of elastic and inelastic neutron scattering. The magnetic structure was determined at H=6 T and the field dependence of both the Cr3+ average
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93b1c59d8a9dd30ea4a6f13898e6c6d1
https://doi.org/10.1016/j.physb.2004.03.065
https://doi.org/10.1016/j.physb.2004.03.065
Publikováno v:
Physica B: Condensed Matter. :447-449
We present a neutron scattering study performed in the field-induced magnetic phase occurring above a critical field H c 1 ≃ 1.5 – 2 T in Cs3Cr2Br9 for the field applied parallel and perpendicular to the dimers. The magnetic structure reveals som
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::359580136db310707dd144a63e619a89
https://doi.org/10.1016/j.physb.2006.05.148
https://doi.org/10.1016/j.physb.2006.05.148
Publikováno v:
Physica B, 230(3), 1017-1020. ELSEVIER SCIENCE BV
An overview is given of Raman and infrared spectroscopic studies of the inorganic spin-Peierls compound CuGeO$_3$, with an emphasis on the magnetic fluctuations in the uniform, dimerized, and high field phases of this quasi one dimensional magneto-el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89975cf33d95c3c2a9d78be345b78c33
https://doi.org/10.1016/s0921-4526(96)00793-4
https://doi.org/10.1016/s0921-4526(96)00793-4
Publikováno v:
Physical Review Letters. 76:4817-4820
The far-infrared electron spin resonance (ESR) technique is used to probe the incommensurate $I$ phase of the spin-Peierls compound CuGe${\mathrm{O}}_{3}$. At sufficiently low temperature, the ESR signal is seen to display hysteresis effects. Dependi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b0f34af2888377b7c167e038e340057
https://doi.org/10.1103/physrevlett.76.4817
https://doi.org/10.1103/physrevlett.76.4817
Publikováno v:
Physica B: Condensed Matter. 204:303-310
ESR studies of the excitation spectrum of Haldane spin systems are presented. We performed temperature-dependent high-field and high-frequency ESR measurements up to 21 T and 1042 GHz on the compound NENP [Ni(C2H8N2)2NO2ClO4]. Based on extensive expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4d9a7fec9b5ec6af8506272e2b95889
https://doi.org/10.1016/0921-4526(94)00279-5
https://doi.org/10.1016/0921-4526(94)00279-5
Publikováno v:
Physical Review Letters. 73:1545-1548
ESR and magnetization measurements have been performed up to 14 T in the compound ${\mathrm{CuGeO}}_{3}$. Two kinds of magnetic transitions are observed, between excited states and from the ground state. The former result essentially from a Zeeman sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ec96621793fc55db3230855405e2923
https://doi.org/10.1103/physrevlett.73.1545
https://doi.org/10.1103/physrevlett.73.1545
Publikováno v:
Physical Review Letters. 69:1699-1702
We present a high-frequency electron spin resonance study of the magnetic transitions occurring between excited states in a Haldane spin system. We show that these transitions are induced between the low-energy magnon states, which develop at the bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6310a3393114bad019f6eb1be1911e03
https://doi.org/10.1103/physrevlett.69.1699
https://doi.org/10.1103/physrevlett.69.1699
Autor:
Hiroshi Nagasawa, Toshihiro Sakurai, H. Kikuchi, Y. Oshima, J.P Boucher, Tsuyoshi Tanaka, Keiichi Koyama, Hitoshi Ohta, M. Motokawa, Susumu Okubo
Publikováno v:
Journal of Magnetism and Magnetic Materials. :439-440
Cu2(C5H12N2)2Cl4 (abbreviated as CHpC) is a new spin-gap system with a gap of about 10 K, which is proposed to be an S= 1 2 ladder system. We performed the high-field ESR measurements down to 0.5 K using the 3He cryostat and the Vector Network Analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a0f8ec51bdd297852d434f840c9fa77
https://doi.org/10.1016/s0304-8853(00)01056-8
https://doi.org/10.1016/s0304-8853(00)01056-8
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1655-1656
We performed high-field and high-frequency ESR up to 21 Tesla and 1042 GHz in the s = 1 Heisenberg antiferromagnetic chains of NENP. New results in the high-field phase and also in the low-frequency regime are presented. They support the distinction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cb415ab714e174121894d21861d04cd
https://doi.org/10.1016/0304-8853(94)00695-4
https://doi.org/10.1016/0304-8853(94)00695-4
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1683-1684
We present high-field Electron Spin Resonance (ESR) measurements on the spin-Peierls compound CuGeO3. We distinguish between two types of ESR transitions in the dimerized phase. They are associated with two energy gaps located at different points in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e0bfe914bd28298c9a8ed7b71bd6f92
https://doi.org/10.1016/0304-8853(94)00694-6
https://doi.org/10.1016/0304-8853(94)00694-6