huahana

KTaO3 Pāpā

wehewehe pōkole:

1. Perovskite a me ka pyrochlore hale

2. Superconducting thin films


Huahana Huahana

Huahana Huahana

wehewehe

ʻO ka potassium tantalate hoʻokahi kristal kahi ʻano kristal hou me ka perovskite a me ka pyrochlore structure.Loaʻa iā ia nā manaʻo mākeke ākea i ka hoʻohana ʻana i nā kiʻiʻoniʻoni lahilahi superconducting.Hiki iā ia ke hāʻawi i nā substrate kristal hoʻokahi o nā ʻano nui a me nā kikoʻī me ka maikaʻi maikaʻi.

Waiwai

ʻAno ulu

ʻano hoʻoheheʻe top-seeded

Pūnaehana Crystal

Cubic

crystallographic Lattice Mau

a= 3.989 A

ʻO ka mānoanoa(g/cm3

7.015

Lae hehee (℃)

≈1500

Paʻakiki (Mho)

6.0

ʻO ka hoʻoili wela

0.17 w/mk@300K

Hoʻopaʻa

2.14

KTaO3 Kahua Wahi

KTaO3 (potassium tantalate) substrate e pili ana i ka crystalline substrate i hana ʻia me ka hui ʻana o ka potassium tantalate (KTaO3).

KTaO3 mea he perovskite me ka cubic crystal structure like me SrTiO3.Loaʻa i ka substrate KTaO3 nā waiwai e hoʻohana pono ai i nā ʻano noiʻi a me nā noi mea hana.ʻO ke kiʻekiʻe dielectric mau a me ka maikaʻi o ka uila uila o KTaO3 e kūpono i nā noi e like me nā capacitors, nā mea hoʻomanaʻo, a me nā kaʻa uila uila kiʻekiʻe.Eia kekahi, loaʻa i nā substrate KTaO3 nā waiwai piezoelectric maikaʻi loa, e hoʻohana ana iā lākou no nā noi piezoelectric e like me nā sensors, actuators, a me nā mea ʻohi ikehu.

ʻO ka hopena piezoelectric e hiki ai i ka substrate KTaO3 ke hoʻohua i nā uku ke kau ʻia i ke koʻikoʻi mechanical a i ʻole ka deformation mechanical.Eia kekahi, hiki i nā substrate KTaO3 ke hōʻike i ka ferroelectricity i nā haʻahaʻa haʻahaʻa, e pili ana iā lākou no ke aʻo ʻana i ka physics mea condensed a me ka hoʻomohala ʻana i nā mea hoʻomanaʻo nonvolatile.

Ma ka holoʻokoʻa, he kuleana koʻikoʻi nā substrate KTaO3 i ka hoʻomohala ʻana i nā mea uila, piezoelectric, a me nā mea ferroelectric.ʻO kā lākou mau waiwai e like me ke kiʻekiʻe dielectric mau, ka conductivity uila maikaʻi, a me ka piezoelectricity e hoʻolilo iā lākou i nā mea substrate kūpono no kahi ākea o nā noi.

ʻO ka wehewehe ʻana i nā kiʻiʻoniʻoni lahilahi superconducting

ʻO kahi kiʻiʻoniʻoni lahilahi superconducting e pili ana i kahi ʻāpana lahilahi o nā mea me ka superconductivity, ʻo ia hoʻi, ka hiki ke alakaʻi i ke au uila me ka pale ʻole.Hana ʻia kēia mau kiʻiʻoniʻoni ma ka waiho ʻana i nā mea superconducting ma luna o nā substrates me ka hoʻohana ʻana i nā ʻenehana hana like ʻole e like me ka hoʻoheheʻe ʻana i ka mahu kino, ka hoʻoheheʻe ʻana o ke kino, a i ʻole ka molecular beam epitaxy.


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