Landau Institute for theoretical physics

Department of quantum mesoscopics

Address:
142432, Chernogolovka, Moscow region
acad. Semenov prosp., 1a
119334, Moscow
Kosygin st., 2
Phone: ++7-495-702-93-17
Fax: ++7-495-702-93-17
Phone: ++7-495-137-32-44
Fax: ++7-495-938-20-77
e-mail: qmeso@itp.ac.ru
Research topics
  • Mesoscopic electronic systems
  • Superconducting hybrid structures
  • Quantum phase transitions
  • Spintronics
  • 2DEG and quantum Hall effect
  • Quantum magnetism and topological order
  • Physics of quantum computation
Recent seminars
Department of quantum mesoscopics: seminar, Friday, June 19, 2026, ITF, 3:00 pm

D.S. Zograbyan, M.M. Glazov

Nechetnaya vyazkost' elektronov i anomal'nyi effekt Kholla v dvumernykh sistemakh s plavnym besporyadkom

V nastoyashchee vremya osoboe vnimanie privlekayut sverkhchistye elektronnye sistemy, gde realizuyutsya razlichnye vidy nediffuzionnogo transporta. V chastnosti, osobenno interesen gidrodinamicheskii rezhim, gde dlina probega po otnosheniyu k elektron-elektronnym stolknoveniyam znachitel'no men'she razmerov sistemy, kotorye, v svoyu ochered', men'she dliny relaksatsii impul'sa. V takikh sistemakh proyavlyayutsya effekty vyazkosti i mozhet byt' realizovano puazeilevskoe techenie elektronov. Vazhnoi zadachei yavlyaetsya izuchenie anomal'nogo effekta Kholla - poyavlenie poperechnogo k tyanushchemu polyu toka, ne svyazannogo s deistviem sily Lorentsa, a voznikayushchego za schet spin-orbital'nogo vzaimodeistviya i narushennoi vneshnim magnitnym polem simmetrii otnositel'no obrashcheniya vremeni. V dannoi rabote predstavlena teoriya odnogo iz mekhanizmov anomal'nogo effekta Kholla, a imenno, effekta «nechetnoi» vyazkosti, proyavlyayushchegosya v vide nediagonal'nykh komponent tenzora vyazkosti, proportsional'nykh stepeni polyarizatsii elektronov i konstante spin-orbital'nogo vzaimodeistviya. Rasschitan tenzor vyazkostei i vyvedeny kvazigidrodinamicheskie uravneniya s uchetom effekta nechetnoi vyazkosti v sluchae, kogda elektrony vzaimodeistvuyut s plavnym besporyadkom. Obsuzhdaetsya svyaz' mezhdu spinovymi i elektricheskimi tokami. Poluchen vklad nechetnoi vyazkosti v anomal'nyi effekt Kholla. Dannaya rabota yavlyaetsya pervym shagom k postroeniyu teorii nechetnoi vyazkosti, obuslovlennoi spin-orbital'nym vzaimodeistviem.

D. S. Zograbyan, M. M. Glazov, Nechetnaya vyazkost' elektronov i anomal'nyi effekt Kholla v dvumernykh sistemakh s plavnym besporyadkom, Pis'ma v ZhETF 123, 278 (2026)