dorsal/arxiv
View SchemaEffect of Crystal Quality on HCP-BCC Phase Transition in Solid 4He
| Authors | Nikolay Mikhin, Andrey Polev, Eduard Rudavskii, Yegor Vekhov |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0612007 |
| URL | https://arxiv.org/abs/quant-ph/0612007 |
| DOI | 10.1007/s10909-007-9458-y |
Abstract
The kinetics of HCP-BCC structure phase transition is studied by precise pressure measurement technique in 4He crystals of different quality. An anomalous pressure behavior in bad quality crystals under constant volume conditions is detected just after HCP-BCC structure phase transition. A sharp pressure drop of 0.2 bar was observed at constant temperature. The subsequent pressure kinetics is a non-monotonic temperature function. The effect observed can be explained if we suppose that microscopic liquid droplets appear on the HCP-BCC interphase region in bad quality crystals. After the interphase region disappearance, these droplets are crystallized with pressure reduction. It is shown that this effect is absent in high quality thermal-treated crystals.
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"date_created": "2026-03-02T18:02:34.489000Z",
"date_modified": "2026-03-02T18:02:34.489000Z",
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"abstract": "The kinetics of HCP-BCC structure phase transition is studied by precise\npressure measurement technique in 4He crystals of different quality. An\nanomalous pressure behavior in bad quality crystals under constant volume\nconditions is detected just after HCP-BCC structure phase transition. A sharp\npressure drop of 0.2 bar was observed at constant temperature. The subsequent\npressure kinetics is a non-monotonic temperature function. The effect observed\ncan be explained if we suppose that microscopic liquid droplets appear on the\nHCP-BCC interphase region in bad quality crystals. After the interphase region\ndisappearance, these droplets are crystallized with pressure reduction. It is\nshown that this effect is absent in high quality thermal-treated crystals.",
"arxiv_id": "quant-ph/0612007",
"authors": [
"Nikolay Mikhin",
"Andrey Polev",
"Eduard Rudavskii",
"Yegor Vekhov"
],
"categories": [
"quant-ph"
],
"doi": "10.1007/s10909-007-9458-y",
"title": "Effect of Crystal Quality on HCP-BCC Phase Transition in Solid 4He",
"url": "https://arxiv.org/abs/quant-ph/0612007"
},
"schema_id": "dorsal/arxiv",
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