Department of Physics

Indian Institute Of Technology Madras , Chennai
Dr. Yasir Iqbal
HSB 249A
DESIGNATION

Assistant Professor

Ph.D.

University of Toulouse

CURRENT RESEARCH INTEREST

Condensed Matter Theory, Strongly Correlated Systems, Frustrated Magnetism, Quantum Spin Liquids, Pseudo-Fermion Functional Renormalization Group and Variational Monte Carlo methods for spin systems

CONTACT

044 - 2257 4841

yiqbal@iitm.ac.in

RESEARCH GROUPS

 Current Research :



 Recent Publications :

Evidence for a three-dimensional quantum spin liquid in PbCuTe2O6

S. Chillal, Y. Iqbal, H. O. Jeschke, J. A. Rodriguez-Rivera, R. Bewley, P. Manuel, D. Khalyavin, P. Steffens, R. Thomale, A. T. M. N. Islam, J. Reuther, B. Lake

Nature Communications

Volume: 11 Page: 2348 DOI: 10.1038/s41467-020-15594-1

Year: 2020

q=0 long-range magnetic order in centennialite CaCu3(OD)6Cl2.0.6D2O: A spin-1/2 perfect kagome antiferromagnet with J1-J2-Jd

K. Iida, H. K. Yoshida, A. Nakao, H. O. Jeschke, Y. Iqbal, K. Nakajima, S. Ohira-Kawamura, K. Munakata, Y. Inamura, N. Murai, M. Ishikado, R. Kumai , T. Okada, M. Oda, K. Kakurai, and M. Matsuda

Physical Review B

Volume: 101 Page: 220408 DOI: 10.1103/PhysRevB.101.220408

Year: 2020

Projective symmetry group classifications of quantum spin liquids on the simple cubic, body centered cubic, and face centered cubic lattices

Jonas Sonnenschein, Aishwarya Chauhan, Yasir Iqbal, Johannes Reuther

Physical Review B

Volume: 102 Page: 125140 DOI: 10.1103/PhysRevB.102.125140

Year: 2020

Degenerate manifolds, helimagnets, and multi-Q chiral phases in the classical Heisenberg antiferromagnet on the face-centered-cubic lattice

Péter Balla, Yasir Iqbal, Karlo Penc

Phys. Rev. Research

Volume: 2 Page: 043278 DOI: 10.1103/PhysRevResearch.2.043278

Year: 2020

Competing orders in a frustrated Heisenberg model on the Fisher lattice

Atanu Maity, Yasir Iqbal, Saptarshi Mandal

Phys. Rev. B

Volume: 102 Page: 224404 DOI: 10.1103/PhysRevB.102.224404

Year: 2020

Quantum and Classical Phases of the Pyrochlore Heisenberg Model with Competing Interactions

Yasir Iqbal, Tobias Müller, Pratyay Ghosh, Michel J. P. Gingras, Harald O. Jeschke, Stephan Rachel, Johannes Reuther, Ronny Thomale

Physical Review X

Volume: 9 Page: 011005 DOI: 10.1103/PhysRevX.9.011005

Year: 2019

Characterization of quantum spin liquids and their spinon band structures via functional renormalization

Max Hering, Jonas Sonnenschein, Yasir Iqbal, Johannes Reuther

Physical Review B

Volume: 99 Page: 100405 DOI: https://doi.org/10.1103/PhysRevB.99.100405

Year: 2019

Quantum paramagnetism and helimagnetic orders in the Heisenberg model on the body centered cubic lattice

P. Ghosh, T. Müller, F. P. Toldin, J. Richter, R. Narayanan, R. Thomale, J. Reuther, Y. Iqbal

Physical Review B

Volume: 100 Page: 014420 DOI: 10.1103/PhysRevB.100.014420

Year: 2019

Affine lattice construction of spiral surfaces in frustrated Heisenberg models

Péter Balla, Yasir Iqbal, and Karlo Penc

Physical Review B

Volume: 100 Page: 140402 DOI: 10.1103/PhysRevB.100.140402

Year: 2019

Breathing chromium spinels: a showcase for a variety of pyrochlore Heisenberg Hamiltonians

P. Ghosh, Y. Iqbal, T. Müller, R. T. Ponnaganti, R. Thomale, R. Narayanan, J. Reuther, M. J. P. Gingras, H. O. Jeschke

npj Quantum Materials

Volume: 4 Page: 63 DOI: 10.1038/s41535-019-0202-z

Year: 2019

Persistence of the gapless spin liquid in the breathing kagome Heisenberg antiferromagnet

Yasir Iqbal, Didier Poilblanc, Ronny Thomale, Federico Becca

Physical Review B

Volume: 97 Page: 115127 DOI: 10.1103/PhysRevB.97.115127

Year: 2018

Stability of the spiral spin liquid in MnSc2S4

Yasir Iqbal, Tobias Müller, Harald O. Jeschke, Ronny Thomale, Johannes Reuther

Phys. Rev. B

Volume: 98 Page: 064427 DOI: 10.1103/PhysRevB.98.064427

Year: 2018

Signatures of a gearwheel quantum spin liquid in a spin-1/2 pyrochlore molybdate Heisenberg antiferromagnet

Yasir Iqbal, Tobias Müller, Kira Riedl, Johannes Reuther, Stephan Rachel, Roser Valentí, Michel J. P. Gingras, Ronny Thomale, Harald O. Jeschke

Phys. Rev. Materials

Volume: 1 Page: 071201 DOI: 10.1103/PhysRevMaterials.1.071201

Year: 2017

Spin liquid nature in the Heisenberg J1-J2 triangular antiferromagnet

Yasir Iqbal, Wen-Jun Hu, Ronny Thomale, Didier Poilblanc, Federico Becca

Phys. Rev. B

Volume: 93 Page: 144411 DOI: 10.1103/PhysRevB.93.144411

Year: 2016

Functional renormalization group for three-dimensional quantum magnetism

Yasir Iqbal, Ronny Thomale, Francesco Parisen Toldin, Stephan Rachel, Johannes Reuther

Phys. Rev. B

Volume: 94 Page: 140408 DOI: 10.1103/PhysRevB.94.140408

Year: 2016

Comment on "Z2 spin liquid phase on the kagome lattice: a new saddle point", by Tao Li [arXiv:1601.02165 (2016)]

Yasir Iqbal, Didier Poilblanc, Federico Becca

arXiv [cond-mat.str-el]

Volume: 1606.02255

Year: 2016

Intertwined nematic orders in a frustrated ferromagnet

Yasir Iqbal, Pratyay Ghosh, Rajesh Narayanan, Brijesh Kumar, Johannes Reuther, Ronny Thomale

Phys. Rev. B

Volume: 94 Page: 224403 DOI: 10.1103/PhysRevB.94.224403

Year: 2016

Spin-1/2 Heisenberg J1-J2 antiferromagnet on the kagome lattice

Yasir Iqbal, Didier Poilblanc, Federico Becca

Phys. Rev. B

Volume: 91 Page: 020402 DOI: 10.1103/PhysRevB.91.020402

Year: 2015

Lanczos steps to improve variational wave functions

Federico Becca, Wen-Jun Hu, Yasir Iqbal, Alberto Parola, Didier Poilblanc, Sandro Sorella

J. Phys.: Conf. Ser.

Volume: 640 Page: 012039 DOI: 10.1088/1742-6596/640/1/012039

Year: 2015

Paramagnetism in the kagome compounds (Zn,Mg,Cd)Cu3(OH)6Cl2

Yasir Iqbal, Harald O. Jeschke, Johannes Reuther, Roser Valentí, I. I. Mazin, Martin Greiter, Ronny Thomale

Phys. Rev. B

Volume: 92 Page: 220404 DOI: 10.1103/PhysRevB.92.220404

Year: 2015

Vanishing spin gap in a competing spin-liquid phase in the kagome Heisenberg antiferromagnet

Yasir Iqbal, Didier Poilblanc, Federico Becca

Phys. Rev. B

Volume: 89 Page: 020407 DOI: 10.1103/PhysRevB.89.020407

Year: 2014

Gapless spin-liquid phase in the kagome spin-1/2 Heisenberg antiferromagnet

Yasir Iqbal, Federico Becca, Sandro Sorella, Didier Poilblanc

Phys. Rev. B

Volume: 87 Page: 060405 DOI: 10.1103/PhysRevB.87.060405

Year: 2013

Quantum-statistics-induced flow patterns in driven ideal Fermi gases

Marco Beria, Yasir Iqbal, Massimiliano Di Ventra, Markus Müller

Phys. Rev. A

Volume: 88 Page: 043611 DOI: 10.1103/PhysRevA.88.043611

Year: 2013

Valence-bond crystals in the kagome spin-1/2 Heisenberg antiferromagnet: a symmetry classification and projected wave function study

Yasir Iqbal, Federico Becca, Didier Poilblanc

New J. Phys.

Volume: 14 Page: 115031 DOI: 10.1088/1367-2630/14/11/115031

Year: 2012

Valence-bond crystal in the extended kagome spin-1/2 quantum Heisenberg antiferromagnet: A variational Monte Carlo approach

Yasir Iqbal, Federico Becca, Didier Poilblanc

Phys. Rev. B

Volume: 83 Page: 100404 DOI: 10.1103/PhysRevB.83.100404

Year: 2011

Projected wave function study of Z2 spin liquids on the kagome lattice for the spin-1/2 quantum Heisenberg antiferromagnet

Yasir Iqbal, Federico Becca, Didier Poilblanc

Phys. Rev. B

Volume: 84 Page: 020407 DOI: 10.1103/PhysRevB.84.020407

Year: 2011