Shirai, M;
Freitas, RS;
Lago, J;
Bramwell, ST;
Ritter, C;
Zivkovic, I;
(2017)
Doping-induced quantum crossover in Er2Ti2-xSnxO7.
Physical Review B
, 96
, Article 180411(R). 10.1103/PhysRevB.96.180411.
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Abstract
We present the results of the investigation of magnetic properties of the Er 2 Ti 2 − x Sn x O 7 series. For small doping values, the ordering temperature decreases linearly with x , while the moment configuration remains the same as in the x = 0 parent compound. Around x = 1.7 doping level, we observe a change in the behavior, where the ordering temperature starts to increase and new magnetic Bragg peaks appear. For the first time, we present evidence of a long-range order (LRO) in Er 2 Sn 2 O 7 ( x = 2.0 ) below T N = 130 mK. It is revealed that the moment configuration corresponds to a Palmer-Chalker type with a value of the magnetic moment significantly renormalized compared to x = 0 . We discuss our results in the framework of a possible quantum phase transition occurring close to x = 1.7 .
| Type: | Article |
|---|---|
| Title: | Doping-induced quantum crossover in Er2Ti2-xSnxO7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevB.96.180411 |
| Publisher version: | https://doi.org/10.1103/PhysRevB.96.180411 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Physics, Condensed Matter, Physics, SPIN ICE, PYROCHLORE ANTIFERROMAGNET, ORDER |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10040955 |
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