{"id":29803,"date":"2025-06-18T13:37:03","date_gmt":"2025-06-18T05:37:03","guid":{"rendered":"\/phys\/?post_type=tkuisotope&#038;p=29803"},"modified":"2025-06-18T16:26:44","modified_gmt":"2025-06-18T08:26:44","slug":"epitaxial-ferroelectric-hexagonal-boron-nitride-grown-on-graphenehung-chung-hsueh","status":"publish","type":"tkuisotope","link":"\/phys\/?tkuisotope=epitaxial-ferroelectric-hexagonal-boron-nitride-grown-on-graphenehung-chung-hsueh","title":{"rendered":"Epitaxial Ferroelectric Hexagonal Boron Nitride Grown on Graphene(Hung-Chung Hsueh)"},"content":{"rendered":"\n<div class=\"wp-block-tkuwpbs5-bs5-container container\" style=\"position:relative\" block_id=\"m999tkxomunjk8ir3c\"><style><\/style>\n<div class=\"wp-block-tkuwpbs5-bs5-row row\">\n<p class=\"has-background has-medium-font-size\" style=\"background-color:#9b51e024\">Sheng-Shong Wong, Zhen-You Lin, Sheng-Zhu Ho, Chih-En Hsu, Ping-Hung Li, Ching-Yu Chen, Yen-Fu Huang, Kuo-En Chang, Yu-Chiang Hsieh, Chia-Hao Chen, Ming-Hao Lee, Ming-Wen Chu, Kuang-I Lin, Tse-Ming Chen, Yi-Chun Chen, <strong>Hung-Chung Hsueh\u859b\u5b8f\u4e2d(\u6de1\u6c5f\u5927\u5b78\u7269\u7406\u7cfb)<\/strong>, Cheng-Maw Cheng, Chung-Lin Wu<\/p>\n\n\n\n<div class=\"wp-block-tkuwpbs5-bs5-column col-md-3 align-self-start\"><\/div>\n\n\n\n<div class=\"wp-block-tkuwpbs5-bs5-column col-md-6 align-self-start\"><img decoding=\"async\" src=\"\/phys\/wp-content\/uploads\/2025\/05\/\u64f7\u53d6.png\" class=\"img-fluid img-fluid \" alt=\"\u4e0a\u50b3\u5716\u7247\"><\/div>\n\n\n\n<div class=\"wp-block-tkuwpbs5-bs5-column col-md-3 align-self-start\"><\/div>\n\n\n\n<div class=\"wp-block-tkuwpbs5-bs5-column col-md-12 align-self-start\">\n<p class=\"has-medium-font-size\"><strong>Related news:<\/strong> <a href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442\">https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><br><strong><strong>Full Article<\/strong>:<\/strong><a href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442\"> https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\">This study utilized <strong>Molecular Beam Epitaxy (MBE)<\/strong> to grow <strong>controllable-layer h-BN thin films<\/strong> on graphene\/SiC substrates. We then employed <strong>Angle-Resolved Photoemission Spectroscopy (ARPES)<\/strong> and <strong>first-principles calculations<\/strong> (including ground-state analysis with Density Functional Theory (DFT) and excited-state analysis with GW many-body perturbation theory corrections) to validate their <strong>interlayer polarization mechanism<\/strong>.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">The research revealed that the <strong>Moire superlattice at the h-BN\/graphene heterojunction induces spontaneous polarization<\/strong>. Furthermore, <strong>interlayer sliding enables reversible polarization switching<\/strong>, unequivocally demonstrating its <strong>ferroelectric properties<\/strong>. This breakthrough not only offers a novel pathway for the heteroepitaxy of two-dimensional ferroelectric materials but also opens new avenues for <strong>tunable electronic device applications<\/strong>.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">This achievement, a result of close collaboration with experimental teams from <strong>National Cheng Kung University and National Taiwan University<\/strong>, as well as the <strong>National Synchrotron Radiation Research Center (NSRRC)<\/strong>, showcases the <strong>integrated capabilities of Tamkang University&#8217;s Physics Department in theoretical and experimental research<\/strong> and provides students with opportunities to participate in cutting-edge international research.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"author":12,"template":"wp-custom-template-detail-4-post","meta":{"_uag_custom_page_level_css":""},"categories":[103],"tags":[],"acf":[],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","twp-icon":"","1536x1536":"","2048x2048":""},"post_excerpt_stackable":"<p>Sheng-Shong Wong, Zhen-You Lin, Sheng-Zhu Ho, Chih-En Hsu, Ping-Hung Li, Ching-Yu Chen, Yen-Fu Huang, Kuo-En Chang, Yu-Chiang Hsieh, Chia-Hao Chen, Ming-Hao Lee, Ming-Wen Chu, Kuang-I Lin, Tse-Ming Chen, Yi-Chun Chen, Hung-Chung Hsueh\u859b\u5b8f\u4e2d(\u6de1\u6c5f\u5927\u5b78\u7269\u7406\u7cfb), Cheng-Maw Cheng, Chung-Lin Wu Related news: https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442 Full Article: https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/adma.202414442 This study utilized Molecular Beam Epitaxy (MBE) to grow controllable-layer h-BN thin films on graphene\/SiC substrates. We then employed Angle-Resolved Photoemission Spectroscopy (ARPES) and first-principles calculations (including ground-state analysis with Density Functional Theory (DFT) and excited-state analysis with GW many-body perturbation theory corrections) to validate their interlayer polarization mechanism. The research revealed that the Moire superlattice at the&hellip;<\/p>\n","category_list":"<a href=\"\/phys\/?cat=103\" rel=\"category\">journal<\/a>","author_info":{"name":"\u674e\u7b60\u92a3","url":"\/phys\/?author=12"},"comments_num":"0 comments","uagb_featured_image_src":[],"uagb_author_info":{"display_name":"\u674e\u7b60\u92a3","author_link":"\/phys\/?author=12"},"uagb_comment_info":0,"uagb_excerpt":null,"_links":{"self":[{"href":"\/phys\/index.php?rest_route=\/wp\/v2\/tkuisotope\/29803"}],"collection":[{"href":"\/phys\/index.php?rest_route=\/wp\/v2\/tkuisotope"}],"about":[{"href":"\/phys\/index.php?rest_route=\/wp\/v2\/types\/tkuisotope"}],"author":[{"embeddable":true,"href":"\/phys\/index.php?rest_route=\/wp\/v2\/users\/12"}],"wp:attachment":[{"href":"\/phys\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/phys\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29803"},{"taxonomy":"post_tag","embeddable":true,"href":"\/phys\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}