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Motivated by the recent experimental discovery of the $T$-linear specific heat in pressurized and magnetized Shastry-Sutherland Mott insulator SrCu$_2$(BO$_3$)$_2$, we perform the state-of-the-art thermal tensor-network computation on the…

Strongly Correlated Electrons · Physics 2026-02-25 Menghan Song , Chengkang Zhou , Cheng Huang , Zi Yang Meng

We present a model compound that forms a mixed-spin ferromagnetic chain. Our material design, based on the organic radicals, affords a verdazyl-based complex (p-Py-V)2[Mn(hfac)2]. The molecular orbital calculations of the compound indicate…

Strongly Correlated Electrons · Physics 2022-09-19 H. Yamaguchi , S. C. Furuya , S. Morota , S. Shimono , T. Kawakami , Y. Kusanose , Y. Shimura , K. Nakano , Y. Hosokoshi

We studied the magnetization as a function of temperature and magnetic field in the compounds Nd0.5Sr0.5MnO3, Nd0.5Ca0.5MnO3, Sm0.5Ca0.5MnO3, Dy0.5Ca0.5MnO3 and Ho0.5Ca0.5MnO3. Ferromagnetic, antiferromagnetic and charge ordering transition…

Strongly Correlated Electrons · Physics 2009-11-07 J. Lopez , O. F. de Lima , P. N. Lisboa-Filho , F. M. Araujo-Moreira

We discuss the low-temperature specific heat of the integrable SU(N)- invariant Heisenberg model in one dimension with degrees of freedom in the symmetric rank-$m$ tensor representation, especially for the antiferromagnetic coupling. It is…

Condensed Matter · Physics 2007-05-23 K. Lee

Applying a time-periodic magnetic field to the standard ferromagnetic Curie-Weiss model brings the spin system in a steady out-of-equilibrium condition. We recall how the hysteresis gets influenced by the amplitude and the frequency of that…

Statistical Mechanics · Physics 2025-05-06 Elena Rufeil Fiori , Christian Maes , Robbe Vidts

We investigate thermal and magnetic properties of the double spin chain compound KCuCl_3 via an exactly solved ladder model with strong rung interaction. Results from the analysis of the thermodynamic Bethe Ansatz equations suggests the…

Statistical Mechanics · Physics 2007-05-23 M. T. Batchelor , X. W. Guan , N. Oelkers

Heat-capacity (C) and ac susceptibility measurements have been performed on the spin-chain compounds, Sr3ZnRhO6 and Ca3NiMnO6, to establish their magnetic behavior and to explore whether there are magnetic frustration effects due to…

Strongly Correlated Electrons · Physics 2009-11-10 S. Rayaprol , Kausik Sengupta , E. V. Sampathkumaran , Y. Matsushita

We report detailed dc and ac magnetic susceptibilities, specific heat, and thermal conductivity measurements on the frustrated magnet ZnCr$_2$Se$_4$. At low temperatures, with increasing magnetic field, this spinel material goes through a…

Strongly Correlated Electrons · Physics 2018-04-10 C. C. Gu , Z. Y. Zhao , X. L. Chen , M. Lee , E. S. Choi , Y. Y. Han , L. S. Ling , L. Pi , Y. H. Zhang , G. Chen , Z. R. Yang , H. D. Zhou , X. F. Sun

Detailed experimental investigations of thermal and magnetic properties are presented for Cu(NH3)4SO4.H2O, an ideal uniform Heisenberg spin half chain compound. A comparison of these properties with relevant spin models is also presented.…

Strongly Correlated Electrons · Physics 2019-01-01 Tanmoy Chakraborty , Harkirat Singh , Dipanjan Chaudhuri , Hirale S. Jeevan , Philipp Gegenwart , Chiranjib Mitra

In this study we examine the phase transitions in single crystals of [(CH3)2NH2]Co(HCOO)3], using magnetization and specific heat measurements as a function of temperature and magnetic field. Magnetisation measurements indicate a transition…

Materials Science · Physics 2015-01-28 K. Vinod , C. S. Deepak , Shilpam Sharma , D. Sornadurai , C. S. Sundar , A. Bharathi

We present a detailed study of the field-dependent specific heat of the bimetallic ferromagnetically coupled chain compound MnNi(NO$_2$)$_4$(en)$_2$, en = ethylenediamine. For this material, which in zero field orders antiferromagnetically…

Strongly Correlated Electrons · Physics 2022-10-04 Andreas Honecker , Wolfram Brenig , Maheshwor Tiwari , Ralf Feyerherm , Matthias Bleckmann , Stefan Süllow

Specific heat C_{p}(T) measurements of the heavy fermion normal-spinel structure compound LiV_{2}O_{4} were carried out using a heat-pulse calorimeter over the temperature T range from 1.2 to 108 K. The electronic specific heat C_{e}(T) of…

Strongly Correlated Electrons · Physics 2010-11-12 D. C. Johnston , C. A. Swenson , S. Kondo

By analyzing the in-plane field magnetoconductivity, zero field transport, and thermodynamic spin magnetization in 2D correlated electron system in high mobility Si-MOS samples, we have revealed a novel high energy scale $T^*$, beyond the…

Strongly Correlated Electrons · Physics 2015-06-25 L. A. Morgun , A. Yu. Kuntsevich , V. M. Pudalov

Low-temperature electronic states in SrRu_{1-x}Mn_xO_3 for x <= 0.6 have been investigated by means of specific-heat C_p measurements. We have found that a jump anomaly observed in C_p at the ferromagnetic (FM) transition temperature for…

Strongly Correlated Electrons · Physics 2010-02-19 A. Yamaji , M. Yokoyama , Y. Nishihara , Y. Narumi , K. Kindo

The rare-earth-based geometrically frustrated triangular magnets have attracted considerable attention due to the intricate interplay between strong spin-orbit coupling and the crystal electric field (CEF), which often leads to effective…

The specific heat of two polycrystalline samples of MgB_2 is presented and analyzed (2 - 300 K, 0 - 16 T), together with magnetic properties. The main characteristics are a low density of states at the Fermi level, high phonon frequencies,…

Superconductivity · Physics 2007-05-23 Alain Junod , Yuxing Wang , Frederic Bouquet , Pierre Toulemonde

Thermodynamic properties of a tetrameric bond-alternating Heisenberg spin chain with ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic exchange interactions are studied using the transfer-matrix renormalization group and…

Strongly Correlated Electrons · Physics 2009-11-10 H. T. Lu , Y. H. Su , L. Q. Sun , J. Chang , C. S. Liu , H. G. Luo , T. Xiang

One-dimensional Heisenberg spin 1/2 chains with random ferro- and antiferromagnetic bonds are realized in systems such as $Sr_3 CuPt_{1-x} Ir_x O_6$. We have investigated numerically the thermodynamic properties of a generic random bond…

Disordered Systems and Neural Networks · Physics 2009-10-31 Beat Ammon , Manfred Sigrist

The gap structure of Sr$_2$RuO$_4$, which is a longstanding candidate for a chiral p-wave superconductor, has been investigated from the perspective of the dependence of its specific heat on magnetic field angles at temperatures as low as…

Cs2CuCl4 is known to possess a quantum spin liquid phase with antiferromagnetic interaction below 2.8 K. We report the observation of a new metastable magnetic phase of the triangular frustrated quantum spin system Cs2CuCl4 induced by the…

Strongly Correlated Electrons · Physics 2017-12-18 Hyeong-Jin Kim , C. R. S. Haines , C. Liu , Sae Hwan Chun , Kee Hoon Kim , H. T. Yi , Sang-Wook Cheong , Siddharth S. Saxena