Anomalous thermal expansion of InSe layered semiconductors in the low-temperature region |
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| Authors: | I B Krynetskii V A Kulbachinskii N P Shabanova A V Tsikunov R I Kovalenko V V Rodin S Yu Gavrilkin |
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| Institution: | 1. Moscow State University, Moscow, 119991, Russia
2. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
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| Abstract: | The temperature dependence of the linear thermal expansion coefficient (TEC) of an InSe single crystal in the (001) plane is measured in the temperature range 7–50 K. A peak in the thermal expansion is detected near T = 10 K, after which the sample shrinks upon heating. The effect of an external magnetic field of up to 6 T, which is parallel to the (001) plane, on the TEC is investigated. The observed partial suppression of the peak and crystal compression by the field indicates the relation of these anomalies to possible electron ordering in InSe layers. |
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