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FeVO$_4$ has been studied by heat capacity, magnetic susceptibility, electric polarization and single crystal neutron diffraction experiments. The triclinic crystal structure is made of \emph{S}-shaped clusters of six Fe$^{3+}$ ions, linked…

超导电性 · 物理学 2015-05-13 A. Daoud-Aladine , B. Kundys , C. Martin , P. G. Radaelli , P. J. Brown , C. Simon , L. C. Chapon

We present an experimental study of macroscopic and microscopic magnetic anisotropy of a spin tetramer system SeCuO$_3$ using torque magnetometry and ESR spectroscopy. Large rotation of macroscopic magnetic axes with temperature observed…

We report magnetic susceptibility, specific heat, and Raman scattering investigations of alpha-TeVO4 containing V-O edge-sharing chains. These chains promote a system of ferromagnetic/antiferromagnetic spin-1/2 Heisenberg alternating…

Pronounced anisotropy of magnetic properties and complex magnetic order of a new oxi-halide compound Co7(TeO3)4Br6 has been investigated by powder and single crystal neutron diffraction, magnetization and ac susceptibility techniques.…

材料科学 · 物理学 2013-05-29 M. Prester , I. Zivkovic , O. Zaharko , D. Pajic , P. Tregenna-Piggott , H. Berger

In this review, we outline the important results on the resistivity encountered by an electron in magnetically ordered materials. The mechanism of the collision between the electron and the lattice spins is shown. Experiments on the spin…

统计力学 · 物理学 2023-01-10 Danh-Tai Hoang , Hung T. Diep

We develop a microscopic theory of finite-temperature spin-nematic orderings in three-dimensional spatially anisotropic magnets consisting of weakly-coupled frustrated spin-1/2 chains with nearest-neighbor and next-nearest-neighbor…

强关联电子 · 物理学 2013-02-19 Masahiro Sato , Toshiya Hikihara , Tsutomu Momoi

We study a model which could explain some of the unusual magnetic properties observed for the one-dimensional helical spin system Co(hfac)_2 NITPhOMe. One of the properties observed is that the magnetization shows plateaus near zero and…

统计力学 · 物理学 2009-11-10 V. Ravi Chandra , S. Ramasesha , Diptiman Sen

The ground state and thermodynamic properties of spin-1 and spin-3/2 chains are investigated via exactly solved su(3) and su(4) models with physically motivated chemical potential terms. The analysis involves the Thermodynamic Bethe Ansatz…

统计力学 · 物理学 2011-02-16 M. T. Batchelor , X. -W. Guan , N. Oelkers , A. Foerster

We report a study of the spin dynamics of the frustrated ferromagnetic $J_1$-$J_2$ chain compound linarite, PbCuSO$_4$(OH)$_2$, in applied magnetic fields up to field polarization. By means of an extreme-environment inelastic neutron…

强关联电子 · 物理学 2022-10-12 L. Heinze , M. D. Le , O. Janson , S. Nishimoto , A. U. B. Wolter , S. Süllow , K. C. Rule

A structural and thermodynamic study of the newly synthesized single crystal Sr5Rh4O12 is reported. Sr5Rh4O12 consists of a triangular lattice of spin chains running along the c-axis. It is antiferromagnetically ordered below 23 K with the…

强关联电子 · 物理学 2015-06-25 G. Cao , S. Parkin , P. Schlottmann

In two-dimensional (2D) ferromagnets, anisotropy is essential for the magnetic ordering as dictated by the Mermin-Wagner theorem. But when competing anisotropies are present, the phase transition becomes nontrivial. Here, utilizing highly…

介观与纳米尺度物理 · 物理学 2022-12-19 S. Y. Wang , Y. Wang , S. H. Yan , C. Wang , B. K. Xiang , K. Y. Liang , Q. S. He , K. Watanabe , T. Taniguchi , S. J. Tian , H. C. Lei , W. Ji , Y. Qi , Y. H. Wang

A flop of electric polarization from $P$$\parallel$$c$ ($P_c$) to $P$$\parallel$$a$ ($P_a$) is observed in MnTiO$_3$ as a spin flop transition is triggered by a $c$-axis magnetic field, $H_{\|c}$=7 T. The critical magnetic field $H_{\|c}$…

强关联电子 · 物理学 2014-10-29 Songxue Chi , Feng Ye , H. D. Zhou , E. S. Choi , J. Hwang , Huibo Cao , Jaime A. Fernandez-Baca

We explore a phenomenological phase diagram for the magnetic helical state with 90$^{\circ}$ turn angle between neighboring spins in the external magnetic field. Such state is formed by the Eu spin layers in the superconducting iron…

强关联电子 · 物理学 2022-04-04 A. E. Koshelev

Motifs of periodic modulations are encountered in a variety of natural systems, where at least two rival states are present. In strongly correlated electron systems such behaviour has typically been associated with competition between…

强关联电子 · 物理学 2015-09-02 M. Pregelj , A. Zorko , O. Zaharko , H. Nojiri , H. Berger , L. C. Chapon , D. Arčon

Magnetic properties and magnetic structure of the Ba$_{2}$Mn(PO$_{4}$)$_{2}$ antiferromagnet featuring frustrated zigzag chains of $S=\frac{5}{2}$ Mn$^{2+}$ ions are reported based on neutron diffraction, density-functional band-structure…

强关联电子 · 物理学 2018-04-10 Arvind Yogi , A. K. Bera , Ashwin Mohan , Ruta Kulkarni , S. M. Yusuf , A. Hoser , A. A. Tsirlin , A. Thamizhavel

The thermal and magnetic properties of spin-1 magnetic chain compounds with large single-ion and in-plane anisotropies are investigated via the integrable su(3) model in terms of the quantum transfer matrix method and the recently developed…

统计力学 · 物理学 2008-11-26 M. T. Batchelor , Xi-Wen Guan , Norman Oelkers

Ultrasound and magnetization studies of bond-frustrated ZnCr2S4 spinel are performed in static magnetic fields up to 18 T and in pulsed fields up to 62 T. At temperatures below the antiferromagnetic transition at T_N1 14 K the sound…

We present magnetization and specific heat data of a La5/3Sr1/3NiO4 single crystal in high magnetic fields. From the charge and spin stripe ordering temperatures, as well as a magnetic low temperature transition, we have constructed the…

强关联电子 · 物理学 2014-03-13 R. Klingeler , B. Büchner , S-W. Cheong , M. Huecker

Ultra-clean crystals of Sr$_3$Ru$_2$O$_7$ undergo a metamagnetic transition at low temperatures. This transition shows a strong anisotropy in the applied field direction with the critical field $H_c$ ranging from $\sim 5.1$T for $H\perp c$…

强关联电子 · 物理学 2010-02-26 Mark H. Fischer , Manfred Sigrist

We report results of NMR experiments on a single crystal of the quasi one-dimensional frustrated magnet LiCuVO_4. The NMR spectra of ^7Li and ^{51}V nuclei indicate a helical spin order in a magnetic field of 4 T with the helical spin plane…

强关联电子 · 物理学 2013-08-08 Kazuhiro Nawa , Masashi Takigawa , Makoto Yoshida , Kazuyoshi Yoshimura