Dergi makalesi Açık Erişim
Romanini, Michela; Wang, YiXu; Gurpinar, Kubra; Ornelas, Gladys; Lloveras, Pol; Zhang, Yan; Zheng, Wenkai; Barrio, Maria; Aznar, Araceli; Gracia-Condal, Adria; Emre, Baris; Atakol, Orhan; Popescu, Catalin; Zhang, Hu; Long, Yi; Balicas, Luis; Lluis Tamarit, Josep; Planes, Antoni; Shatruk, Michael; Manosa, Lluis
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The crystal structure of FBT contains a trinuclear transition metal complex that undergoes an abrupt spin-state switching between the state in which all three Fe-II centers are in the high-spin (S = 2) electronic configuration and the state in which all of them are in the low-spin (S = 0) configuration. Despite the strongly cooperative nature of the spin transition, it proceeds with a negligible hysteresis and a large volumetric change, suggesting that FBT should be a good candidate for producing a large BCE. Powder X-ray diffraction and calorimetry reveal that the material is highly susceptible to applied pressure, as the transition temperature spans the range from 318 at ambient pressure to 383 K at 2.6 kbar. Despite the large shift in the spin-transition temperature, its nonhysteretic character is maintained under applied pressure. Such behavior leads to a remarkably large and reversible BCE, characterized by an isothermal entropy change of 120 J kg(-1) K-1 and an adiabatic temperature change of 35 K, which are among the highest reversible values reported for any caloric material thus far.", "doi": "10.1002/adma.202008076", "has_grant": false, "journal": { "issue": "10", "title": "ADVANCED MATERIALS", "volume": "33" }, "license": { "id": "cc-by" }, "publication_date": "2021-01-01", "relations": { "version": [ { "count": 1, "index": 0, "is_last": true, "last_child": { "pid_type": "recid", "pid_value": "235424" }, "parent": { "pid_type": "recid", "pid_value": "235423" } } ] }, "resource_type": { "subtype": "article", "title": "Dergi makalesi", "type": "publication" }, "science_branches": [ "Di\u011fer" ], "title": "Giant and Reversible Barocaloric Effect in Trinuclear Spin-Crossover Complex Fe-3(bntrz)(6)(tcnset)(6)" }, "owners": [ 1 ], "revision": 1, "stats": { "downloads": 6.0, "unique_downloads": 6.0, "unique_views": 26.0, "version_downloads": 6.0, "version_unique_downloads": 6.0, "version_unique_views": 26.0, "version_views": 26.0, "version_volume": 2358.0, "views": 26.0, "volume": 2358.0 }, "updated": "2022-10-07T09:18:21.866448+00:00" }
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