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Unusual ground states in R5T4X10(R  =  rare earth; T  =  Rh, Ir; and X  =  Si, Ge, Sn) : a review

Title data

Ramakrishnan, Srinivasan ; van Smaalen, Sander:
Unusual ground states in R5T4X10(R  =  rare earth; T  =  Rh, Ir; and X  =  Si, Ge, Sn) : a review.
In: Reports on Progress in Physics. Vol. 80 (September 2017) Issue 11 . - p. 116501. - 41 S..
ISSN 1361-6633
DOI: https://doi.org/10.1088/1361-6633/aa7d5f

Official URL: Volltext

Project information

Project financing: Alexander von Humboldt-Stiftung
Deutsche Forschungsgemeinschaft

Abstract in another language

Rare earth compounds of the type R <sub>5</sub> T <sub>4</sub> X <sub>10</sub> ( R = rare earth; T = Rh, Ir, and X = Si, Ge, Sn) display a variety of phase transitions towards exotic states, including charge density waves (CDW), local moment magnetism, antiferromagnetism in the heavy fermion state, superconductivity and giant positive magnetoresistance. They support strongly correlated electron systems. In particular, R <sub>5</sub>Ir<sub>4</sub>Si<sub>10</sub> ( R = Dy-Lu) exhibit strong coupling CDWs with high transition temperatures and superconductivity or magnetic ordering at lower temperatures. R <sub>5</sub> T <sub>4</sub>Ge<sub>10</sub> ( R = Gd-Tm; T = Co, Rh, Ir) show multiple magnetic transitions with large magnetoresistance below the magnetic transitions. Finally, the light rare earth series R <sub>5</sub> T <sub>4</sub>Sn<sub>10</sub> ( R = Ce, Pr, Nd; T = Rh, Ir) display heavy fermion behaviour (for Ce and Pr) or possess giant positive magnetoresistance (for Nd) at low temperatures. This review provides a comprehensive overview of compounds, crystal structures and phase transitions. This is followed by an in-depth discussion of the mechanisms of the phase transitions and the properties of the ordered states.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 26 Jan 2018 08:19
Last Modified: 26 Jan 2018 08:19
URI: https://eref.uni-bayreuth.de/id/eprint/42130