Topological Quantum Phenomena in Condensed Matter with Broken Symmetries

¥Û¡¼¥à > ¥á¥ó¥Ð¡¼ > ÀÖ﨑¡¡Ã£»Ö

English

¥á¥ó¥Ð¡¼¥×¥í¥Õ¥£¡¼¥ë

ÀÖùõ ã»Ö¡ÊTatsushi Akazaki)

ÀÖ﨑¡¡Ã£»Ö¡ÊTatsushi Akazaki)

½ê°¡§
¹âÃι©¶È¹âÅùÀìÌç³Ø¹»¡ÊÅŵ¤¾ðÊ󹩳زʡ˶µ¼ø
ÀìÌçʬÌ
ĶÅÁƳÀܹç¡Ê¼Â¸³¡Ë
¸¦µæÂêÌÜ¡§
(A01) »þ´ÖȿžÂоÎÀ­¤òÇˤëĶÅÁƳÂΤο·´ñ³¦Ì̸½¾Ý
Îΰè¤Ç¤Î¸¦µæ¥Æ¡¼¥Þ¡§
¶¯¼§À­ÂΤò´Þ¤àĶÅÁƳÀܹç·Ï¤Ç¤Î´ñ¼þÇÈ¿ôĶÅÁƳ¾õÂÖ¤äµÕ¶áÀܸú²Ì¤Î¸¦µæ
Îΰè¤Ç¤ÎÌò³ä¡§
AÈÉÏ¢·È¸¦µæ¼Ô
¢£ ¸¦µæ¼¼

¤³¤ì¤Þ¤Ç¤Î¸¦µæ

¡¡Ä¶ÅÁƳÂΡ¿È¾Æ³ÂÎÀܹçÃæ¤Ç¤ÎJosephson¸ú²Ì¡¢Ä¶ÅÁƳ¶áÀܸú²Ì¤äAndreevÈ¿¼Í¤È¤¤¤Ã¤¿Î̻Ҹ½¾Ý¤ò¼Â¸³Åª¤Ë¸¡¾Ú¤·¤Æ¤­¤Þ¤·¤¿¡£Ä¶ÅÁƳÂδ֤òÀä±ïÂΤǶ´¤ó¤À°ìÈÌŪ¤ÊJosephsonÀܹç¤È¤Ï°Û¤Ê¤ê¡¢Ä¶ÅÁƳÂΡ¿È¾Æ³ÂÎÀܹç¤Ç¤ÏȾƳÂΤÎÍ¢Á÷ÆÃÀ­¤òÅų¦¤ä¸÷¾È¼Í¤ÇÀ©¸æ¤Ç¤­¤ë¤¿¤á¡¢ÍÍ¡¹¤ÊÎ̻Ҹ½¾Ý¤òÀ©¸æ¤·¤Æ¡¢Ä´¤Ù¤ë¤³¤È¤¬²Äǽ¤Ç¤¹¡£ºÇ¶á¤Ç¤Ï¡¢¥¹¥Ô¥ó¤ÈĶÅÁƳ¤ÎÁê´Ø¤Ë¶½Ì£¤ò»ý¤Ã¤Æ¡¢Ä¶ÅÁƳÂΡ¿¼§À­È¾Æ³ÂÎÀܹç¤Ë¤ª¤±¤ë¥¹¥Ô¥ó°Í¸ĶÅÁƳ¡¢Ä¶ÅÁƳÂΡ¿È¾Æ³ÂÎÀܹç¤Ø¤Î±ßÊи÷¾È¼Í¤Ë¤è¤ë¸÷Ͷµ¯¥¹¥Ô¥ó¤Î±Æ¶Á¤Ë¤Ä¤¤¤Æ¸¦µæ¤ò¿Ê¤á¤Æ¤¤¤Þ¤¹¡£

ËÜÎΰè¤Ç¤Î¸¦µæ

¡¡¿·³Ø½ÑÎΰè¤Ç¤Ï¡¢Ä¶ÅÁƳÂΡ¿¼§À­È¾Æ³ÂÎÀܹç¤òÉñÂæ¤È¤·¤Æ¡¢´ñ¼þÇÈ¿ôĶÅÁƳ¾õÂÖ¤äµÕ¶áÀܸú²Ì¤Ë¤Ä¤¤¤ÆÄ´¤Ù¤ëͽÄê¤Ç¤¹¡£´üÂÔ¤µ¤ì¤ëÎ̻Ҹ½¾Ý¤ò¸ú²ÌŪ¤Ë´Ñ¬¤Ç¤­¤ë¤è¤¦¤Ë¤¹¤ë¤¿¤á¡¢ÍýÏÀ¸¦µæ¼Ô¤Î³§ÍͤÈÌ©ÀܤÊÏ¢·È¤ò¼è¤ê¤Ê¤¬¤é¡¢¼Â¸³¤ò¿Ê¤á¤Æ¤¤¤­¤¿¤¤¤È¹Í¤¨¤Æ¤¤¤Þ¤¹¡£

¤½¤Î¾

¡¡ÍÍ¡¹¤ÊºàÎÁ¤òÁȤ߹ç¤ï¤»¤ë¤³¤È¤Ç¡¢»×¤¤¤â¤è¤é¤Ê¤¤¸½¾Ý¤¬È¯¸½¤¹¤ë¤Î¤¬¡ÖÊ£¹çºàÎÁ¡×¤ÎÂé¸ïÌ£¤Ç¤¹¡£º£¸å¤â¡¢¸ÇÄê´ÑÇ°¤Ë¤È¤é¤ï¤ì¤º¡¢¿§¡¹¤ÊºàÎÁ¤ÎÁȤ߹ç¤ï¤»¤ËÄ©À路¤Æ¤¤¤­¤¿¤¤¤È»×¤¤¤Þ¤¹¡£

άÎò

1980ǯ
»äΩÅÚº´¹â¹»Â´¶È
1984ǯ
¶å½£Âç³ØÍý³ØÉôʪÍý³Ø²Ê´¶È
1986ǯ
¶å½£Âç³ØÂç³Ø±¡Íý³Ø¸¦µæ²Ê½¤»Î²ÝÄø½¤Î»
1986ǯ
NTT¡¡´ðÁø¦µæ½ê¡¡¸¦µæ°÷
1995ǯ
Çî»Î¡Ê¹©³Ø¡Ë¡ÊÂçºåÂç³Ø¡Ë
¡ÊInAs·Ï¹â°ÜÆ°ÅÙȾƳÂΤÎÅÅ»ÒÍ¢Á÷ÆÃÀ­¤Ê¤é¤Ó¤ËĶÅÁƳÀܹç¤Ø¤Î±þÍѤ˴ؤ¹¤ë¸¦µæ¡Ë
2005ǯ
NTTʪÀ­²Ê³Ø´ðÁø¦µæ½ê¡¡¥¹¥Ô¥ó¥È¥íÆ󥯥¹¸¦µæ¥°¥ë¡¼¥×¡¡¥°¥ë¡¼¥×¥ê¡¼¥À ¸½ºß¤Ë»ê¤ë

¼ç¤Ê¼õ¾Þ

2010ǯ
±þÍÑʪÍý³Ø²ñÏÀʸ¾Þ

ÂåɽÏÀʸ

"Observation of enhanced thermal noise due to multiple Andreev reflection in ballistic
InGaAs-based superconducting weak links",
T. Akazaki, H. Nakano, J. Nitta, and H. Takayanagi,
Applied Physics Letters 86, 132505(1)-(3) (2005).

"Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry",
T. Koga, J. Nitta, T. Akazaki, and H. Takayanagi,
Physical Review Letters 89, 046801(1)-(4) (2002).

"Gate control of spin-orbit interaction in an inverted In0.53Ga0.47As/In0.52Al0.48As heterostructure",
J. Nitta, T. Akazaki, H. Takayanagi, and T. Enoki,
Physical Review Letters 78, 1335-1338 (1997).

"Observation of enhanced thermal noise due to multiple Andreev reflection in ballistic
InGaAs-based superconducting weak links",
T. Akazaki, H. Takayanagi, J. Nitta, and T. Enoki,
Applied Physics Letter 68, 418-420 (1996).

"Observation of Maximum supercurrent quantization in a superconducting quantum point contact",
H. Takayanagi, T. Akazaki, and J. Nitta,
Physical Review Letters 75, 3533-3536 (1995).

PAGE TOP