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The paper presents a theoretical study of magnetocaloric properties of polyoxovanadate molecular magnet V6 containing 6 vanadium ions carrying quantum spins $S = 1/2$. The characteristic property of such structure is the presence of two…

Materials Science · Physics 2019-10-15 P. Kowalewska , K. Szałowski

Dark blue single crystals of Al$_{1.75}^{3+}$ Ti$_{1.0}^{4+}$ Ti$_{0.25}^{3+}$O$_5$ were grown with a novel synthesis method based on the reaction of a Ti3+/Ti4+ containing langbeinite melt and Al$_2$O$_3$. The obtained needles crystallize…

Materials Science · Physics 2022-12-02 Davor Tolj , WenHua Bi , Yong Liu , Ivica Zivkovic , Henrik M. Ronnow , Arnaud Magrez

Layered transition-metal compounds have received great attention owing to their novel physical properties. Here, we present the structural, electronic, thermal, and magnetic properties of BaMn2Sb2 and Ba2Mn3Sb2O2 single crystals, both with…

Strongly Correlated Electrons · Physics 2019-05-22 Qiang Zhang , Zhenyu Diao , Huibo Cao , Ahmad Saleheen , Ramakanta Chapai , Dongliang Gong , Shane Stadler , R. Jin

We report spin-pair tunneling observed in Mn$_3$ single-molecule magnet, which is a crystal with 2D network of identical exchange coupling. We observed a series of extra quantum tunnelings by the ac susceptibility measurements, and…

Mesoscale and Nanoscale Physics · Physics 2014-11-04 Yan-Rong Li , Rui-Yuan Liu , Yun-Ping Wang

Monolayer tinene presents rich absorption spectra in electric fields. There are three kinds of special structures, namely shoulders, logarithmically symmetric peaks and asymmetric peaks in the square-root form, corresponding to the optical…

Mesoscale and Nanoscale Physics · Physics 2016-11-29 Rong-Bin Chen , Chin-Wei Chiu , Szu-Chao Chen

Dimerized quantum magnets are exotic crystalline materials where Bose-Einstein condensation of magnetic excitations can happen. However, known dimerized quantum magnets are limited to only a few oxides and halides. Here, we unveil 9…

The reversible control of a single spin of an atom or a molecule is of great interest in Kondo physics and a potential application in spin based electronics.Here we demonstrate that the Kondo resonance of manganese phthalocyanine molecules…

We have performed magnetic susceptibility, heat capacity, muon spin relaxation, and neutron scattering measurements on three members of the family Ba3MRu2O9, where M = In, Y and Lu. These systems consist of mixed-valence Ru dimers on a…

Strongly Correlated Electrons · Physics 2017-05-31 D. Ziat , A. A. Aczel , R. Sinclair , Q. Chen , H. D. Zhou , T. J. Williams , M. B. Stone , A. Verrier , J. A. Quilliam

We report transport measurements through a single-molecule magnet, the Mn12 derivative [Mn12O12(O2C-C6H4-SAc)16(H2O)4], in a single-molecule transistor geometry. Thiol groups connect the molecule to gold electrodes that are fabricated by…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 H. B. Heersche , Z. de Groot , J. A. Folk , H. S. J. van der Zant , C. Romeike , M. R. Wegewijs , L. Zobbi , D. Barreca , E. Tondello , A. Cornia

A detailed analysis of the magnetic properties of a vanthoffite type mineral Na6Mn(SO4)4 basedon dc magnetization, low temperature neutron powder diffraction and theoretical calculations is reported. The mineral crystallizes in a monoclinic…

The intermediate valent systems TmSe and SmB6 have been investigated up to 16 and 18 GPa by ac microcalorimetry with a pressure (p) tuning realized in situ at low temperature. For TmSe, the transition from an antiferromagnetic insulator for…

Strongly Correlated Electrons · Physics 2009-11-11 J. Derr , G. Knebel , G. Lapertot , B. Salce , M-A. Measson , J. Flouquet

We describe and analyze a tight-binding model of single molecule magnets (SMMs) that captures both the spin and spatial aspects of the SMM electronic structure. The model generalizes extended Huckel theory to include the effects of spin…

Mesoscale and Nanoscale Physics · Physics 2012-06-26 Fatemeh Rostamzadeh Renani , George Kirczenow

Theoretical work has suggested that monolayer MoS2 doped with Mn should behave as a two-dimensional dilute magnetic semiconductor, which would open up possibilities for spintronic applications, device physics, and novel ground states. The…

Understanding the effect of chemical composition on the strength of magnetic interactions is key to the design of magnets with stronger exchange interactions. The magnetic divalent first-row transition metal (TM) thiocyanates are a class of…

Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer.…

Materials Science · Physics 2009-11-11 G. de Loubens , G. D. Chaves , A. D. Kent , C. Ramsey , E. del Barco , C. Beedle , D. N. Hendrickson

Development of spintronic and quantum computing devices increases demand for efficient, energy saving method of spin manipulation at molecular scale. Polyoxovanadate molecular magnets being susceptible to both electric and magnetic fields…

Mesoscale and Nanoscale Physics · Physics 2026-04-08 Piotr Kozłowski

The magnetic properties of a monolayer of Fe4 single molecule magnets grafted onto a Au (111) thin film have been investigated using low energy muon spin rotation. The properties of the monolayer are compared to bulk Fe4. We find that the…

Mesoscale and Nanoscale Physics · Physics 2009-09-28 Z. Salman , S. J. Blundell , S. R. Giblin , M. Mannini , L. Margheriti , E. Morenzoni , T. Prokscha , A. Suter , A. Cornia , R. Sessoli

Van der Waals magnets are uniquely positioned at the intersection between two-dimensional materials, antiferromagnetic spintronics, and magnonics. The interlayer exchange interaction in these materials enables antiferromagnetic resonances…

Materials Science · Physics 2021-04-14 Joseph Sklenar , Wei Zhang

We report bulk magnetic properties of the monoclinic lanthanide tantalates, M'-LnTaO4 (Ln = Tb, Dy, Ho, Er), where the magnetic Ln3+ ions are arranged on a distorted 2D square lattice. The heavier analogue M'-YbTaO4 has been investigated as…

Strongly Correlated Electrons · Physics 2026-04-16 Nicola D. Kelly , Ivan da Silva , Siân E. Dutton

Results of magnetization and neutron diffraction measurements of the manganese vanadate system Mn$_5$(VO$_4$)$_2$(OH)$_4$ are reported. The crystal structure of this compound contains triangular [Mn$_3$O$_{13}$] building blocks that produce…

Strongly Correlated Electrons · Physics 2018-09-07 V. O. Garlea , M. A. McGuire , L. D. Sanjeewa , D. M. Pajerowski , F. Ye , J. W. Kolis
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