najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-1-59-70najo-779Research ArticlePHYSICSФИЗИКАNormal state pair nematicity and hidden magnetic order and metal-insulator (fermion-boson)- crossover origin of pseudogap phase of cuprates IIAbdullaevB.

Tashkent 100174

bakhodir.abdullaeff@yandex.ruAbdullaevD. B.

Tashkent 100174

ParkC.-H.

 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735

cpark@pusan.ac.krMusakhanovM. M.

Tashkent 100174

yousufmm@list.ruInstitute of Applied Physics, National University of UzbekistanUzbekistanResearch Center for Dielectric and Advanced Matter Physics, Department of Physics, Pusan National UniversityKorea, Republic ofNational University of UzbekistanUzbekistan201713082025815970Copyright © Abdullaev B., Abdullaev D.B., Park C., Musakhanov M.M., 20252025Abdullaev B., Abdullaev D.B., Park C., Musakhanov M.M.Abdullaev B., Abdullaev D.B., Park C., Musakhanov M.M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/779

In the present paper II, we will gain an understanding of the nematicity, insulating ground state (IGS), nematicity to stripe phase transition, Fermi pockets evolution, and resistivity temperature upturn, as to be metal- insulator (fermion-boson)- crossover (MIC) phenomena for the pseudogap (PG) region of cuprates. While in the paper I [Abdullaev B., et al. arXiv:cond-mat/0703290], we obtained an understanding of the observed heat conductivity downturn, anomalous Lorentz ratio, insulator resistivity boundary, nonlinear entropy as manifestations of the same MIC. The recently observed nematicity and hidden magnetic order are related to the PG pair intra charge and spin fluctuations. We will try to obtain an answer to the question; why ground state of YBCO is Fermi liquid oscillating and of Bi-2212 is insulating? We will also clarify the physics of the recently observed MIC results of Lalibert et al. [arXiv:1606.04491] and explain the long-discussed transition of the electric charge density from doping to doping+1 dependence at the critical doping. We predict that at the upturns this density should have the temperature dependences n T3n2 for T 0, where n2 is density for dopings close to the critical value. We understood that the upturns before and after the first critical doping have the same nature. We will find understanding of all above mentioned phenomena within PG pair physics.

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The authors declare that there are no conflicts of interest present.