From the ediorial board

“For 108 years we have been highlighting advances in physics. To the readers of the journal "Uspekhi Fizicheskikh Nauk" ("Physics-Uspekhi")” Phys. Usp. 69 (1) (2026)

Reviews of topical problems

G.M. Gusev, Z.D. Kvon, A.D. Levin, E.B. Olshanetsky, N.N. Mikhailov “Thermopower in HgTe-based topological insulators and two-dimensional semimetals” Phys. Usp. 69 (1) (2026)

A.P. Menushenkov, M.Yu. Kagan “Real-space pairing and formation of Fermi—Bose mixture in BaBiO₃-based family of superconducting oxides” Phys. Usp. 69 (1) (2026)

Instruments and methods of investigation

A.B. Tolstoguzov, P.Yu. Babenko, A.N. Zinoviev “Surface analysis by low-energy ion scattering spectroscopy” Phys. Usp. 69 (1) (2026)

From the history of physics

K. Barley, A. Ruffing, S.K. Suslov “Old quantum mechanics by Bohr and Sommerfeld from modern perspective” Phys. Usp. 69 (1) (2026)

S.V. Petrov “Uniqueness of spin 1/2” Phys. Usp. 69 (1) (2026)

Personalia

A.V. Butenko, D.I. Kazakov, V.D. Kekelidze, V.A. Lebedev, P.V. Logachev, V.A. Matveev, Yu.T. Oganessian, V.V. Parkhomchuk, A.N. Skrinsky, E.M. Syresin, G.V. Trubnikov, B.Yu. Sharkov “Igor Nikolaevich Meshkov (on his 90th birthday)” Phys. Usp. 69 (1) (2026)

A.E. Bondar, N.A. Vinokurov, N.S. Dikanskii, G.N. Kulipanov, E.B. Levichev, P.V. Logachev, I.B. Logashenko, I.N. Meshkov, V.V. Parkhomchuk, Yu.A. Tikhonov, V.S. Fadin, Yu.M. Shatunov “Aleksandr Nikolaevich Skrinsky (on his 90th birthday)” Phys. Usp. 69 (1) (2026)

Scientific news

Yu.N. Eroshenko “Physics news on the Internet: January 2026” Phys. Usp. 69 (1) (2026)