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Найдено документов в текущей БД: 6

    Formation of a magnetic soliton lattice in copper metaborate
/ B. . Roessli [et al.] // Phys. Rev. Lett. - 2001. - Vol. 86, Is. 9. - P. 1885-1888, DOI 10.1103/PhysRevLett.86.1885. - Cited References: 26 . - ISSN 0031-9007
РУБ Physics, Multidisciplinary

Аннотация: The magnetic ground state of CuB2O4 is incommensurate at T = 1.8 K and undergoes a continuous phase transition to a noncollinear commensurate antiferromagnetic state at T* similar to 10 K. Close to T* higher-order magnetic satellites are observed. Coexistence of long- and short-range magnetic order is observed in both magnetic phases. This suggests that the association of the Dzyaloshinskii-Moriya interaction and anisotropy leads to the formation of a magnetic soliton lattice.

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Держатели документа:
ETH Zurich, Neutron Scattering Lab, CH-5232 Villigen, Switzerland
Paul Scherrer Inst, CH-5232 Villigen, Switzerland
SB RAS, Inst Phys, Krasnoyarsk 660036, Russia
Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
ИФ СО РАН
Laboratory for Neutron Scattering, ETH Zurich, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
Institute of Physics SB RAS, 660036 Krasnoyarsk, Russian Federation
Institut Laue-Langevin, Avenue des Martyrs, 38042 Grenoble, Cedex 9, France
Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland

Доп.точки доступа:
Roessli, B.; Schefer, J.; Petrakovskii, G. A.; Петраковский, Герман Антонович; Ouladdiaf, B.; Boehm, M.; Staub, U.; Vorotinov, A. M.; Bezmaternikh, L. N.

    SPIN-GLASS STATE IN AMORPHOUS BI2CUO4
/ A. M. VOROTINOV, K. A. SABLINA // Solid State Commun. - 1993. - Vol. 87, Is. 3. - P. 209-211, DOI 10.1016/0038-1098(93)90477-5. - Cited References: 6 . - ISSN 0038-1098
РУБ Physics, Condensed Matter
Рубрики:
RESONANCE

Аннотация: The magnetic susceptibility and magnetic resonance measurements of an amorphous compound Bi2CuO4 have been carried out. It was pointed out, that a part of Cu2+ ions stays in the paramagnetic state down to T=4,2 K. The magnitude of the effective exchange integral in amorphous Bi2CuO4 has been estimated. The magnetic resonance measurements revealed the existance of the magnetic phase transition to spin-glass state at T=100 K.

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Держатели документа:
L.V. Kirenskii Institute of Physics, SB RAS Russia, 660036 Krasnoyarsk, Russian Federation
ИФ СО РАН

Доп.точки доступа:
SABLINA, K. A.; Саблина, Клара Александровна

    Magnetic, resonance, and electrical-properties of single-crystal and amorphous BI2CuO4
/ G. A. Petrakovskii [et al.] // Solid State Commun. - 1991. - Vol. 79, Is. 4. - P. 317-320, DOI 10.1016/0038-1098(91)90554-9. - Cited References: 7 . - ISSN 0038-1098
РУБ Physics, Condensed Matter
Рубрики:
RANGE

Аннотация: Single crystal and amorphous samples Bi2CuO4 were prepared. The magnetic susceptibility, magnetization, magnetic resonance and electrical resistivity measurements for wide range of temperatures and magnetic fields are presented. The anisotropic exchange interactions and 3-d antiferromagnetic behaviour were revealed for single crystal Bi2CuO4. The effective magnetic moments per copper ion were determined. The sharp differences between single crystal and amorphous samples properties were shown.

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Держатели документа:
L.V. Kirenskii Institute of Physics, SB AS USSR, 660036, Krasnoyarsk, USSR
ИФ СО РАН

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Vorotinov, A. M.; Воротынов, Александр Михайлович; Vasiliev, V. N.; Kruglik, A. I.; Круглик, Анатолий Иванович; Balaev, A. D.; Балаев, Александр Дмитриевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kiselev, N. I.

    ESR INVESTIGATION OF AN AMORPHOUS COMPOUNDS FEGEO3, MNGEO3, CUGEO3
/ K. A. SABLINA, A. M. VOROTINOV // Solid State Commun. - 1990. - Vol. 76, Is. 4. - P. 453-455, DOI 10.1016/0038-1098(90)90648-U. - Cited References: 7 . - ISSN 0038-1098
РУБ Physics, Condensed Matter


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Доп.точки доступа:
VOROTINOV, A. M.; Саблина, Клара Александровна

    Magnetoimpedance, Jahn-Teller transitions upon electron doping of manganese sulfide
/ S. S. Aplesnin, M. N. Sitnikov, A. M. Kharkov [et al.] // J. Magn. Magn. Mater. - 2020. - Vol. 513. - Ст. 167104, DOI 10.1016/j.jmmm.2020.167104. - Cited References: 42. - This study was supported by youth project_Reshetnev Siberian State University of Science and Technology . - ISSN 0304-8853
Аннотация: The effect of a magnetic field on the electrical and magnetic properties of manganese sulfide upon electron doping in the YbxMn1−xS (0.05 ˂ x ˂ 0.2) compound has been investigated. The change in the conductivity type from the Poole–Frenkel to Mott law have been established using the I–V characteristics and the change in the carrier type upon temperature and concentration variations has been observed. The effect of the sample prehistory on the conductivity, impedance, and magnetic susceptibility under the action of a magnetic field in a wide temperature range has been found. The trivalent state of ytterbium ions has been determined using the electron paramagnetic resonance study. The dynamic JT transitions temperature are found by IR method and by the electron paramagnetic resonance. Anomalies of carrier mobility and magneto-impedance were found in the vicinity of the Jahn-Teller transitions. The experimental data are explained by the localization of electrons with the formation of the interstitial orbital momenta and an orbital momentum into the site. The sample prehistory is related to the lifting of the orbital angular moments degeneracy and the direction of the axis of distortion of the octahedrons in a magnetic field.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Kharkov, A. M.; Konovalov, S. O.; Vorotinov, A. M.; Воротынов, Александр Михайлович

    Magnetodielectric effect and spin state of iron ions in iron-substituted bismuth pyrostannate
/ L. Udod, S. Aplesnin, M. Sitnikov [et al.] // Eur. Phys. J. Plus. - 2020. - Vol. 135, Is. 10. - Ст. 776, DOI 10.1140/epjp/s13360-020-00781-2. - Cited References: 38. - This study was supported in part by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk krai, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, Project No. 18-42-240001 r_a «Inversion of the Sign of the Magnetoelectric Tensor Components on Temperature in Neodymium-Substituted Bismuth Ferrite Garnet Films » and by the Russian Foundation for Basic Research, Project No. 20-52-00005 bel_a . - ISSN 2190-5444
   Перевод заглавия: Магнитодиэлектрический эффект и спиновое состояние ионов железа в железо-замещенном висмутовом пиростаните

Аннотация: The magnetic and magnetodielectric properties of bismuth pyrostannate Bi2(Sn1-xFex)2O7 (x= 0.1 and 0.2) have been examined. Using the Mossbauer spectroscopy and electron paramagnetic resonance, the high-spin state and crystallographic positions of iron ions have been established. The coexistence of triclinic symmetry domains in the Bi2(Sn1-xFex)2O7(x=0.1) compound with the monoclinic symmetry below 140 K has been found. For the Bi2(Sn1-xFex)2O7 composition with x= 0.2 , the nonlinear field dependence of magnetization in the paramagnetic region up to room temperatures has been observed. The electric polarization hysteresis and the magnetoelectric effect in the Bi2(Sn1-xFex)2O7 compound have been disclosed. The magnetic field-dependent anomalous behavior of magnetization has been explained by the magnetoelectric effect.

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Держатели документа:
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M.; Romanova, O. B.; Романова, Оксана Борисовна; Bayukov, O. A.; Баюков, Олег Артемьевич; Vorotinov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Patrin, G. S.; Патрин, Геннадий Семёнович