Magnetic phase transitions around room temperature in Cu                         9                         S                         5

Annette Setzer; Pablo D. Esquinazi; Lukas Botsch; Oliver Baehre; Eti Teblum; Anat Itzhak; Olga Girshevitz; Gilbert Daniel Nessim

doi:10.1080/01411594.2019.1586901

Magnetic phase transitions around room temperature in Cu ₉ S ₅

Annette Setzer, Pablo D. Esquinazi, Lukas Botsch, Oliver Baehre, Eti Teblum, Anat Itzhak, Olga Girshevitz, Gilbert Daniel Nessim

Leipzig University

Research output: Contribution to journal › Article › peer-review

Abstract

We have studied the magnetization of a recently synthesized Cu (Formula presented.) S (Formula presented.) compound and found two phase transitions around room temperature. The phase transitions in the crystalline structure, characterized by XRD studies, are accompanied by changes also in the electrical resistivity. A hysteretic first-order phase transition has been found between 260 and 320 K, from a low-temperature paramagnetic anilite phase to a diamagnetic high-temperature low-digenite phase. A second order phase transition was recognized at ≃ 352 K from low digenite to a paramagnetic high-digenite structure at high temperatures.

Original language	English
Pages (from-to)	385-395
Number of pages	11
Journal	Phase Transitions
Volume	92
Issue number	4
DOIs	https://doi.org/10.1080/01411594.2019.1586901
State	Published - 3 Apr 2019

Bibliographical note

Publisher Copyright:
© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.

Funding

We gratefully acknowledge the support of Prof. G. Klöß from the Institute of Mineralogy, Crystallographyand Materials Science and W. Böhlmann for the EDAX characterization. G.D.N. would like to thank the Israel Science Foundation and Israel Prime Ministry Office for alternatives initiative for partial funding of this study under the Israel Research center for Electrochemical Propulsion (INREP) (Grant: ISF 2797/11). Additionally, G.D.N. would like to thank the International Atomic Energy Agency (IAEA) for partial support. G.D.N. would like to thank the Israel Science Foundation and Israel Prime Ministry Office for alternatives initiative for partial funding of this study under the Israel Research center for Electrochemical Propulsion (INREP) (Grant: ISF 2797/11). Additionally, G.D.N. would like to thank the International Atomic Energy Agency (IAEA) for partial support. We gratefully acknowledge the support of Prof.?G.?Kl?? from the Institute of Mineralogy, Crystallographyand Materials Science and W.?B?hlmann for the EDAX characterization.

Funders	Funder number
Institute of Mineralogy
Israel Prime Ministry Office
Israel Science Foundation
International Atomic Energy Agency
Israel National Research Center for Electrochemical Propulsion	ISF 2797/11

Keywords

Copper sulphide
diamagnetism
magnetic phase transition
paramagnetism
room temperature phase transitions

Access to Document

10.1080/01411594.2019.1586901

Cite this

Setzer, A., Esquinazi, P. D., Botsch, L., Baehre, O., Teblum, E., Itzhak, A., Girshevitz, O., & Nessim, G. D. (2019). Magnetic phase transitions around room temperature in Cu ₉ S ₅ Phase Transitions, 92(4), 385-395. https://doi.org/10.1080/01411594.2019.1586901

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abstract = "We have studied the magnetization of a recently synthesized Cu (Formula presented.) S (Formula presented.) compound and found two phase transitions around room temperature. The phase transitions in the crystalline structure, characterized by XRD studies, are accompanied by changes also in the electrical resistivity. A hysteretic first-order phase transition has been found between 260 and 320 K, from a low-temperature paramagnetic anilite phase to a diamagnetic high-temperature low-digenite phase. A second order phase transition was recognized at ≃ 352 K from low digenite to a paramagnetic high-digenite structure at high temperatures.",

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author = "Annette Setzer and Esquinazi, {Pablo D.} and Lukas Botsch and Oliver Baehre and Eti Teblum and Anat Itzhak and Olga Girshevitz and Nessim, {Gilbert Daniel}",

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Setzer, A, Esquinazi, PD, Botsch, L, Baehre, O, Teblum, E, Itzhak, A, Girshevitz, O & Nessim, GD 2019, ' Magnetic phase transitions around room temperature in Cu ₉ S ₅ ', Phase Transitions, vol. 92, no. 4, pp. 385-395. https://doi.org/10.1080/01411594.2019.1586901

Magnetic phase transitions around room temperature in Cu ₉ S ₅ . / Setzer, Annette; Esquinazi, Pablo D.; Botsch, Lukas et al.
In: Phase Transitions, Vol. 92, No. 4, 03.04.2019, p. 385-395.

Research output: Contribution to journal › Article › peer-review

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