°®ÓÎÏ·appÒâ¼×ÔÞÖúÉÌ

µ±Ç°Î»ÖÃ: Ê×Ò³ >> ѧԺÐÂÎÅ >> ÕýÎÄ

°®ÓÎÏ·appÒâ¼×ÔÞÖúÉÌ:ÎÒÔºÍõÒë½ÌÊÚÔÚScience (¡¶¿ÆÑ§¡·)ÉÏ·¢±í×ÔÐýÐÅÏ¢´æ´¢ÁìÓòÍ»ÆÆÐÔ¹¤×÷


·¢²¼Ê±¼ä£º2019-12-02    À´Ô´£º    µã»÷Á¿£º




2019Äê11ÔÂ29ÈÕ£¬ÎÒÔºÍõÒë½ÌÊÚÓëÐÂ¼ÓÆÂ¹úÁ¢´óѧHyunsoo Yang½ÌÊÚ£¬ÔÚÊÀ½ç¶¥¼¶ÆÚ¿¯Science (¡¶¿ÆÑ§¡·)ÉÏ·¢±íÖØÒª¹¤×÷£ºÀûÓÃ×ÔÐý²¨·­×ª´Å¾ØÊµÏÖÊý¾Ý´æ´¢ÓëÂß¼­ÔËËã[1]¡£

×ñѭĦ¶û¶¨ÂÉ·ÉËÙ·¢Õ¹µÄÏÖ´úµç×ÓÆ÷¼þ³ß´çÔ½À´Ô½Ð¡£¬Ð¾Æ¬ÖÐÒòµçºÉ¸ßËÙÔ˶¯ºÍƵ·±ÅöײÒý·¢ÑÏÖØ·¢ÈÈ£¬²»µ«Ôì³É¸ßÄܺÄ£¬Í¬Ê±ÏÞÖÆÐ¾Æ¬´¦ÀíËÙ¶ÈÓ뼯³ÉÃܶȵÄÌá¸ß£¬³ÉΪ×è°­µ±Ç°Æ÷¼þ·¢Õ¹µÄÒ»¸öÑÏÖØÎÊÌâ¡£ÔÚÈÕ³£Éú»îÖУ¬ÎÒÃǶ¼ÄÜÇÐÉíÌå»áµ½µç×Ó²úÆ·ºÄµç¡¢·¢Èȶø´øÀ´µÄÑÏÖØ²»±ã¡£

¾Û½¹ÉÏÊö¹Ø¼ü¿ÆÑ§¼¼ÊõÎÊÌ⣬ÍõÒë½ÌÊÚÓëÐÂ¼ÓÆÂ¹úÁ¢´óѧHyunsoo Yang½ÌÊÚ´´ÐÂÐÔÌá³öÀûÓÃ×ÔÐý²¨(×¼Á£×Ó£º´ÅÕñ×Ó)À´Çý¶¯´Å¾Ø·­×ª£¬ÊµÏÖоƬ¡°0¡±ºÍ¡°1¡±µÄÐÅÏ¢´æ´¢ºÍÂß¼­ÔËË㣬ÕâÍêÈ«²»Í¬ÓÚÒÔÍùͨ¹ýÓÐÈȺÄÉ¢µç×Ó×ÔÐý×¢ÈëµÄ´«Í³¼¼Êõ¡£×ÔÐý²¨²»¾ÖÏÞÓÚµç×Óµ¼Ì壬¿ÉÒÔÒÔ¡°²¨¡±µÄ·½Ê½ÔÚ¶àÖÖ½éÖÊÖÐÎÞÈȺÄÉ¢¡¢µÍ×èÄá¡¢³¤¾àÀë´«²¥×ÔÐýÐÅÏ¢£¬ÖØÒªµÄÊǸùý³Ì²»ÐèÒªµ¼µçµçºÉ²ÎÓ룬Òò´ËÕâÖÖлúÖÆ¿ÉÒÔ´Ó¸ù±¾ÉÏÍ»ÆÆ´«Í³Ð¾Æ¬·¢ÈÈ¡¢ºÄµçµÈÆ¿¾±¡£


ͼA-B£º´ÅÕñ×Óת¾Ø(A)Ó봫ͳµç×Ó×ÔÐýת¾Ø(B)¶Ô±ÈʾÒâͼ£»Í¼C£º´ÅÕñ×Óת¾ØÆ÷¼þ¹âѧÕÕÆ¬£»Í¼D£º´ÅÕñ×Óת¾ØÇý¶¯NiFe´Å¾Ø·­×ªÆ÷¼þʾÒâͼ£»Í¼E£ºBi2Se3/NiO/NiFeÆ÷¼þµÄ×ÔÐýת¾ØÌú´Å¹²Õñ²âÁ¿Ê¾Òâͼ£»Í¼F£º´ÅÕñ×Óת¾ØÇ¿¶ÈÓëNiOºñ¶È¹ØÏµ£»Í¼G£º²»Í¬ºñ¶ÈNiOÆ÷¼þÖдÅÕñ×Óת¾ØÓëζȵĹØÏµ£»Í¼H£º´ÅÕñ×Óת¾ØÐ§Ó¦Çý¶¯´Å¾Ø·­×ª´Å¹â¿Ë¶û³ÉÏñ¡£


ÔÚǰÆÚ¹¤×÷»ù´¡ÉÏ[2-4]£¬ËûÃÇÉè¼ÆÁËÒìÖʱ¡Ä¤½á¹¹£¬·´Ìú´Å¾øÔµÌåNiO×÷Ϊ´ÅÕñ×Ó¸ßЧ´«ÊäͨµÀ£¬ÍØÆË¾øÔµÌåBi2Se3×÷Ϊ¸ßÇ¿¶È´ÅÕñ×Ó²úÉúÔ´£¬¿ª´´ÐÔÀûÓôÅÕñ×Óת¾ØÐ§Ó¦ÊµÏÖÉÌÒµ¹ã·ºÓ¦ÓõÄNiFeºÍCoFeBÌú´Å±¡Ä¤×ÔÐý´Å¾Ø180¡ã·­×ª¡£Æ÷¼þÔÚÊÒÎÂÏÂÔËÐУ¬´ÅÕñ×Óת¾ØÐ§Ó¦ÏÔÖø£¬Ô¤ÆÚͨ¹ý½øÒ»²½µ÷¿ØÆ÷¼þ£¬´ÅÕñ×Óת¾ØÇ¿¶ÈÓÐÍû½øÒ»²½ÔöÇ¿¡£

´Ë¹¤×÷ʵÑé֤ʵÁË×ÔÐý²¨¿ÉÓÐЧ·­×ª×ÔÐý´Å¾Ø£¬¿ª±ÙÁËʵÏֵ͹¦ºÄ¡¢¸ßËÙ¶ÈÐÅÏ¢´æ´¢ºÍÂß¼­ÔËËãоƬµÄÐÂ;¾¶£¬±Ø½«·¢Õ¹´ÅÕñ×ÓѧÐÂÑо¿·½Ïò£¬¼¤·¢´ÅÕñ×ÓÆ÷¼þ¹ã·ºÌ½Ë÷£¬´Ù½øºóĦ¶ûʱ´úÆ÷¼þ¸ïС£¸Ã¹¤×÷ÖУ¬ÎÒУÍõÒë½ÌÊÚΪµÚÒ»×÷Õߣ¬³É¹û²¿·ÖµÃµ½°®ÓÎÏ·appÒâ¼×ÔÞÖúÉÌÈË²ÅÆô¶¯×ʽðµÄ×ÊÖú¡£



ÂÛÎÄÁ´½Ó£º

ÍõÒë½ÌÊÚÖ÷Ò³£ºhttp://faculty.

²Î¿¼ÎÄÏ×£º

[1] Yi Wang et al., Magnetization switching by magnon-mediated spin torque through an antiferromagnetic insulator, Science 366, 1125-1128 (2019)

DOI: 10.1126/science.aav8076

[2] Yi Wang et al., Room temperature magnetization switching in topological insulator-ferromagnet heterostructures by spin-orbit torques, Nature Communications 8, 1364 (2017)

DOI: 10.1038/s41467-017-01583-4

[3] Yi Wang et al., Room-Temperature Giant Charge-to-Spin Conversion at the SrTiO3¨CLaAlO3 Oxide Interface, Nano Letters 17, 7659 (2017)

DOI: 10.1021/acs.nanolett.7b03714

[4] Yi Wang et al., Topological Surface States Originated Spin-Orbit Torques in Bi2Se3£¬Physical Review Letters 114, 257202 (2015)

DOI:



°æÈ¨ËùÓУº°®ÓÎÏ·appÒâ¼×ÔÞÖúÉÌ µØÖ·£ºÖйú ¡¤ ÁÉÄþÊ¡´óÁ¬Êиʾ®×ÓÇøÁ蹤·2ºÅ

 

Óʱࣺ116024 µç»°£º0411-84708370

°®ÓÎÏ·appÒâ¼×ÔÞÖúÉÌ(ÓÀÖÝ)ÓÐÏÞ¹«Ë¾