Abacwaningi babone impatho entsha eyinqaba lapho kushiselwa intokazi kazibuthe.Lapho izinga lokushisa likhuphuka, i-magnetic spin kule nto "ibanda" ibe imodi emile, evame ukwenzeka lapho izinga lokushisa lehla.Abacwaningi bashicilele abakutholile encwadini ethi Nature Physics.
Abacwaningi bathola lesi simo ezintweni ze-neodymium.Eminyakeni embalwa edlule, bachaza lesi sici ngokuthi “self-induced spin glass”.Ingilazi ephotha ngokuvamile iyingxubevange yensimbi, isibonelo, ama-athomu ensimbi axutshwa ngokungahleliwe abe yigridi yama-athomu ethusi.I-athomu yensimbi ngayinye ifana nozibuthe omncane, noma ukuphotha.Lawa ma-spins abekwe ngokungahleliwe akhomba ezindaweni ezihlukahlukene.
Ngokungafani nezingilazi ze-spin zendabuko, ezixubene ngokungahleliwe nezinto zikazibuthe, i-neodymium iyisici.Uma ingekho enye into, ikhombisa ukuziphatha kwe-vitrification ngendlela yekristalu.Ukuzungezisa kwakha iphethini yokuzungeza njengokuzungeza, okungahleliwe futhi kuguquguquka njalo.
Kulolu cwaningo olusha, abacwaningi bathola ukuthi lapho beshisisa i-neodymium isuka ku-268 ° C iye ku-265 ° C, i-spin yayo "iqhwa" ibe iphethini eqinile, yenza uzibuthe ezingeni lokushisa eliphakeme.Njengoba impahla iphola, iphethini ezungezayo ejikelezayo iyabuya.
“Le ndlela ‘yokuqanda’ ngokuvamile ayenzeki ezintweni kazibuthe,” kusho u-Alexander khajetoorians, uprofesa ohlola isibonakhulu eRadboud University eNetherlands.
Amazinga okushisa aphezulu andisa amandla kokuqinile, oketshezini, noma kumagesi.Okufanayo kusebenza kumazibuthe: emazingeni okushisa aphakeme, ukuzungeza kuvame ukuqala ukuntengantenga.
Ama-Khajetoorians athi, "ukuziphatha kazibuthe kwe-neodymium esiyibonile empeleni kuphambene nalokho okwenzekayo' ngokuvamile '.""Lokhu kuphambene nokunembile, njengamanzi aphenduka abe yiqhwa lapho eshisiwe."
Lesi senzo esiphikisayo asivamile emvelweni - izinto ezimbalwa ezaziwa ukuthi ziziphatha ngendlela engafanele.Esinye isibonelo esaziwayo usawoti we-Rochelle: izindleko zawo zakha iphethini e-oda emazingeni okushisa aphakeme, kodwa zisakazwa ngokungahleliwe emazingeni okushisa aphansi.
Incazelo yetiyetha eyinkimbinkimbi ye-spin glass indikimba ye-Nobel Prize ku-physics yango-2021.Ukuqonda ukuthi lezi zibuko ze-spin zisebenza kanjani kubalulekile nakwezinye izindawo zesayensi.
Ama-Khajetoorians uthe, "uma ekugcineni singalingisa indlela lezi zinto ezisebenza ngayo, kungase kuphazamise ukuziphatha kwenani elikhulu lezinye izinto."
Ukuziphatha okungaba khona kwe-eccentric kuhlobene nomqondo wokuwohloka: izifunda eziningi ezahlukene zinamandla afanayo, futhi uhlelo luyakhungatheka.Izinga lokushisa lingashintsha lesi simo: isimo esithile kuphela esikhona, esivumela isistimu ukuthi ifake ngokusobala imodi.
Lokhu kuziphatha okungajwayelekile kungase kusetshenziswe ekugcineni ulwazi olusha noma imiqondo yekhompuyutha, njengobuchopho obufana nekhompyutha.
Isikhathi sokuthumela: Aug-05-2022
