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We have measured the thermal conductivity of the geometrically frustrated quasi-onedimensional spin system Cu$_3$Mo$_2$O$_9$ in magnetic fields. A contribution of the thermal conductivity due to spins has been observed in the thermal…

The mechanism of rapid and selective heating of magnetic metal oxides under the magnetic field of microwaves which continues beyond the Curie temperature $ T_{c} $ is identified by using the Heisenberg model. Monte Carlo calculations based…

Materials Science · Physics 2009-02-13 Motohiko Tanaka , Hirohiko Kono , Koji Maruyama

We report a study of the low-temperature heat transport in the quasi-one-dimensional S = 1/2 alternating antiferromagnetic-ferromagnetic chain compound (CH_{3})_{2}NH_{2}CuCl_{3}. Both the temperature and magnetic-field dependencies of…

Strongly Correlated Electrons · Physics 2011-10-20 L. M. Chen , X. M. Wang , W. P. Ke , Z. Y. Zhao , X. G. Liu , C. Fan , Q. J. Li , X. Zhao , X. F. Sun

Heat-capacity behavior in the presence of externally applied magnetic field (H) up to 140 kOe is investigated (2-35 K) for the quasi-1-dimensional compound, Ca3Co2O6, believed to order magnetically with the so-called partially disordered…

Strongly Correlated Electrons · Physics 2009-11-10 E. V. Sampathkumaran , Z. Hiroi , S. Rayaprol , Y. Uwatoko

Devices for performing computation and logic operations with low-energy consumption are of key importance for environmentally friendly data-processing and information technology. Here, we present a design for magnetic elements that use…

Mesoscale and Nanoscale Physics · Physics 2023-10-17 Xi-guang Wang , Guang-hua Guo , Jamal Berakdar

The 4d-electron trimer lattice exhibits either a quantum spin liquid (QSL) or a heavy-fermion strange metal (HFSM) phase, depending on Nb content. In the QSL state, itinerant spinons act as effective heat carriers, enhancing thermal…

Strongly Correlated Electrons · Physics 2025-07-24 Yu Zhang , Hengdi Zhao , Tristan R. Cao , Rahul Nandkishore , Pedro Schlottmann , Lance Delong , Gang Cao

Research in spintronics often involves generation of heat in nanoscale magnetic systems. This heat generation can be intentional, as when studying effects created by an external applied temperature difference, or unintentional, coming as a…

Mesoscale and Nanoscale Physics · Physics 2022-11-15 Barry L Zink

The effect of magnetic field on specific heat of a p-wave spin triplet superconductor has been analyzed. To describe superconductivity we used a single band model with various realizations of p-wave order parameter and analyzed the effect…

Superconductivity · Physics 2015-06-25 Grzegorz Litak , Karol I. Wysokinski

Transport properties provide important information about the mobility, elastic and inelastic of scattering of excitations in solids. Heat transport is well understood for phonons and electrons, but little is known about heat transport by…

Strongly Correlated Electrons · Physics 2008-04-11 C. Hess

We study the twisted control of the near-field radiative heat transfer between two hyperbolic antiferromagnetic insulators under external magnetic fields. We show that the near-field heat flux can be affected by both the twist angle…

Mesoscale and Nanoscale Physics · Physics 2023-04-14 Yuanyang Du , Jiebin Peng , Zhong Shi , Jie Ren

We report the study on the low-temperature heat transport of Ba_3Mn_2O_8 single crystal, a layered spin-dimer compound exhibiting the magnetic-field-induced magnetic order or the magnon Bose-Einstein condensation. The thermal conductivities…

Strongly Correlated Electrons · Physics 2011-10-20 W. P. Ke , X. M. Wang , C. Fan , Z. Y. Zhao , X. G. Liu , L. M. Chen , Q. J. Li , X. Zhao , X. F. Sun

We study the low-temperature heat transport in clean two-leg spin ladder compounds coupled to three-dimensional phonons. We argue that the very large heat conductivities observed in such systems can be traced back to the existence of…

Strongly Correlated Electrons · Physics 2009-11-11 E. Boulat , P. Mehta , N. Andrei , E. Shimshoni , A. Rosch

We report studies of thermal conductivity as functions of magnetic field and temperature in the helimagnetic insulator Cu$_2$OSeO$_3$ that reveal novel features of the spin-phase transitions as probed by magnon heat conduction. The tilted…

Strongly Correlated Electrons · Physics 2019-01-07 N. Prasai , A. Akopyan , B. A. Trump , G. G. Marcus , S. X. Huang , T. M. McQueen , J. L. Cohn

We explore that two ferromagnetic insulator slabs host a strong twist-induced near-field radiative heat transfer in the presence of twisted magnetic fields. Using the formalism of fluctuational electrodynamics, we find the existence of…

Mesoscale and Nanoscale Physics · Physics 2023-04-14 Jiebin Peng , Gaomin Tang , Luqin Wang , Rair Macêdo , Hong Chen , Jie Ren

This article reviews the principles that govern the combined transport of spin, heat, and charge. The extensive thermodynamic quantity associated with spin transport is the magnetization; its Onsager-conjugate force is in general the…

Materials Science · Physics 2021-06-09 Joseph P. Heremans

Heat shuttling phenomenon is characterized by the presence of a non-zero heat flow between two bodies without net thermal bias on average. It was initially predicted in the context of nonlinear heat conduction within atomic lattices coupled…

Searching for novel spin caloric effects in antiferromagnets we study the properties of thermally activated magnons in the presence of an external spin current and temperature gradient. We predict the spin Peltier effect -- generation of a…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Olena Gomonay , Kei Yamamoto , Jairo Sinova

Magnetic and specific-heat measurements are performed in three different samples of LaMnO_{3+\delta}, with \delta=0.11, 0.15 and 0.26, presenting important disorder effects, such as carrier localization, due to high amounts of La and Mn…

Condensed Matter · Physics 2009-10-31 L. Ghivelder , I. Abrego Castillo , M. A. Gusmao , J. A. Alonso , L. F. Cohen

We report electrical transport, skin depth, and magnetocaloric measurements in the tau-series of organic conductors at very high magnetic fields. Above 36 T these materials show a magnetic field induced first order phase transition from a…

Condensed Matter · Physics 2009-11-07 J. S. Brooks , D. Graf , E. S. Choi , L. Balicas , K. Storr , C. H. Mielke , G. C. Papavassiliou

At low temperatures, the thermal conductivity of spin excitations in a magnetic insulator can exceed that of phonons. However, because they are charge neutral, the spin waves are not expected to display a thermal Hall effect in a magnetic…

Strongly Correlated Electrons · Physics 2015-09-09 Max Hirschberger , Robin Chisnell , Young S. Lee , N. P. Ong