Extraordinary two-dimensionality in the S=1/2 spatially anisotropic triangular quantum magnet Cu(1,3-diaminopropane)Cl2 with modulated structure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F23%3A10254067" target="_blank" >RIV/61989100:27640/23:10254067 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27740/23:10254067 RIV/00216208:11320/23:10475482 RIV/60461373:22310/23:43934075

Result on the web

<a href="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.108.214432" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/PhysRevB.108.214432</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.108.214432" target="_blank" >10.1103/PhysRevB.108.214432</a>

Result language

angličtina

Original language name

Extraordinary two-dimensionality in the S=1/2 spatially anisotropic triangular quantum magnet Cu(1,3-diaminopropane)Cl2 with modulated structure

Original language description

The growth of sufficiently large single crystals of Cu(tn)Cl2 (tn=1,3-diaminopropane) enabled specific heat and susceptibility studies in various field orientations. The nearly invisible broad hump in zero-field specific heat at 0.6 K coincides with the change in the characteristic parameters of zero-field muon relaxation spectra. The lack of oscillations in the time spectra and their exponential character preserved down to 40 mK suggest the coexistence of static and fluctuating local fields associated with the prevalence of low-dimensional correlations. The extreme two-dimensionality is also manifested by the nonmonotonous character of the magnetic phase diagram. First-principle calculations of exchange couplings introduced a concept of a quasi-two-dimensional magnetic lattice with many couplings within the magnetic layers. The strongest ones lead to the model of a rectangular lattice with the intrachain coupling J/kB = 4.3 K and the interchain coupling J&apos;/J = 0.46, which provides excellent agreement with the zero-field specific heat. However, the susceptibility data suggest the importance of other weaker interactions in accord with first-principle studies. Significant broadening of fieldinduced specific heat anomalies may be ascribed to potential intrinsic partial magnetic disorder associated with the gradual modulation of tn positions in the crystal structure.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GF22-35410K" target="_blank" >GF22-35410K: Magnetism at interfaces: from quantum to reality</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical review B

ISSN

2469-9950

e-ISSN

2469-9969

Volume of the periodical

108

Issue of the periodical within the volume

21

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

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UT code for WoS article

001143139600003

EID of the result in the Scopus database

2-s2.0-85181403692