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We use neutron diffraction, magnetometry and low temperature heat capacity to probe giant magneto-elastic coupling in CoMnSi-based antiferromagnets and to establish the origin of the entropy change that occurs at the metamagnetic transition…

Strongly Correlated Electrons · Physics 2015-03-20 A. Barcza , Z. Gercsi , H. Michor , K. Suzuki , W. Kockelmann , K. S. Knight , K. G. Sandeman

Structural, magnetic and magnetocaloric properties of Fe2P-based Mn-Fe-P-Si compounds were investigated. The study reveals a large magneto-elastic coupling that starts to develop in the paramagnetic state and grows when the ferromagnetic…

Materials Science · Physics 2012-09-25 Nguyen Huu Dung , Lian Zhang , Zhi Qiang Ou , Ekkes Brück

New high resolution data for heat capacity, heat capacity under applied magnetic fields and resistivity of high quality single crystal of MnSi are reported. Striking mirror symmetry between temperature derivative of resistivity and thermal…

Strongly Correlated Electrons · Physics 2007-06-22 S. M. Stishov , A. E. Petrova , S. Khasanov , G. Kh. Panova , A. A. Shikov , J. C. Lashley , D. Wu , T. A. Lograsso

The magnetoelastic coupling in Ca$_{1.8}$Sr$_{0.2}$RuO$_4$ and in Ca$_{1.5}$Sr$_{0.5}$RuO$_4$ has been studied combining high-resolution dilatometer and diffraction techniques. Both compounds exhibit strong anomalies in the…

We present a comprehensive investigation of the evolution of helimagnetic correlations in Mn$_{1-x}$Fe$_x$Si with increasing doping. By combining polarised neutron scattering and high resolution Neutron Spin Echo spectroscopy we investigate…

Strongly Correlated Electrons · Physics 2021-01-13 Catherine Pappas , Andrey O. Leonov , Lars J. Bannenberg , Peter Fouquet , Thomas Wolf , Frank Weber

The interaction between the electronic and structural degrees of freedom is central to several intriguing phenomena observed in condensed-matter physics. In magnetic materials, magnetic interactions couple to lattice degrees of freedom,…

Noncollinear metallic antiferromagnets, with their rapid spin dynamics, efficient spin transport, and distinctive spin textures, play a pivotal role in advancing the field of spintronics. In this study, we report a comprehensive…

We present high-resolution measurements of the thermal expansion and the magnetostriction of TlCuCl$_{3}$ which shows field-induced antiferromagnetic order. We find pronounced anomalies in the field and temperature dependence of different…

Strongly Correlated Electrons · Physics 2009-11-10 N. Johannsen , A. Vasiliev , A. Oosawa , H. Tanaka , T. Lorenz

This study examines the increasing complexity in the magnetic properties of small $n$ = 3, 4, 5, 6 spin-1/2 quantum rings. Using an exact diagonalization of the isotropic Heisenberg Hamiltonian with nearest and next-nearest neighbor…

Materials Science · Physics 2016-09-21 J. T. Haraldsen

Evidence for a strong spin-lattice coupling in multiferroic HoMnO_3 is derived from thermal expansion measurements along a- and c-axis. The magnetoelastic effect results in sizable anomalies of the thermal expansivities at the…

Strongly Correlated Electrons · Physics 2009-11-11 C. dela Cruz , F. Yen , B. Lorenz , Y. Q. Wang , Y. Y. Sun , M. M. Gospodinov , C. W. Chu

We theoretically study the electrical conductivity in a one-dimensional helimagnet whose spin texture changes from helimagnetic to conical magnetic, and to forced ferromagnetic state while increasing the magnetic field along the helical…

Strongly Correlated Electrons · Physics 2022-03-30 Shun Okumura , Takahiro Morimoto , Yasuyuki Kato , Yukitoshi Motome

Thermal expansion, magnetostriction and magnetization measurements under magnetic field and hydrostatic pressure were performed on a $\mathrm{UAu_{2}Si_{2}}$ single crystal. They revealed a large anisotropy of magnetoelastic properties…

Materials able to rapidly switch between thermally conductive states by external stimuli such as electric or magnetic fields can be used as all-solid-state thermal switches and open a myriad of applications in heat management, power…

Materials Science · Physics 2024-03-06 Karl G. Koster , Jackson Hise , Joseph P. Heremans , Joshua E. Goldberger

Magnetization curves of MnSi single crystals have been measured in a range of temperatures $T = 5.5 - 35$ K and magnetic field strengths $H \leq 11$ kOe for $H \parallel$ [111], [001], and [110]. Special attention has been paid to the…

Strongly Correlated Electrons · Physics 2014-11-25 V. N. Narozhnyi , V. N. Krasnorussky

We report a study of the reorientation of the helimagnetic order in the archetypal cubic chiral magnet MnSi as a function of magnetic field direction. The reorientation process as inferred from small-angle neutron scattering, the…

Strongly Correlated Electrons · Physics 2017-02-01 A. Bauer , A. Chacon , M. Wagner , M. Halder. R. Georgii , A. Rosch , C. Pfleiderer , M. Garst

In spite of both technical and fundamental importance, reversal of a macroscopic magnetization by an electric field (E) has been limitedly realized and remains as one of great challenges. Here, we report the realization of modulation and…

Materials Science · Physics 2014-06-26 Yi Sheng Chai , Sangil Kwon , Sae Hwan Chun , Ingyu Kim , Byung-Gu Jeon , Kee Hoon Kim , Soonchil Lee

We have reinvestigated the magnetic properties of the classical metallic helimagnet MnP by magnetization and neutron scattering experiments. Our neutron scattering results indicate that the previously reported magnetic structure in the…

Muon-spin rotation data collected at ambient pressure ($p$) and at $p=2.42$ GPa in MnP were analyzed to check their consistency with various low- and high-pressure magnetic structures reported in the literature. Our analysis confirms that…

Superconductivity · Physics 2019-02-07 R. Khasanov , A. Amato , P. Bonfà , Z. Guguchia , H. Luetkens , E. Morenzoni , R. De Renzi , N. D. Zhigadlo

We investigated the conical magnetic state of a uniaxial chiral helimagnet Yb(Ni$_{1-x}$Cu$_x$)$_3$Al$_9$ induced in magnetic fields applied along the $c$ axis, which coincides with the helical axis at zero field. Using resonant X-ray…

Strongly Correlated Electrons · Physics 2026-03-26 Takeshi Matsumura , Mitsuru Tsukagoshi , Shota Nakamura , Shigeo Ohara

We report high-resolution dilatometry on high-quality single crystals of NiTiO3 grown by means of the optical floating-zone technique. The anisotropic magnetic phase diagram is constructed from thermal expansion and magnetostriction studies…

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