Twist-bend nematic liquid crystals in high magnetic fields. 2014

P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
Department of Physics, Kent State University, Kent, Ohio 44242, USA.

We present magneto-optic measurements on two materials that form the recently discovered twist-bend nematic (N_{tb}) phase. This intriguing state of matter represents a fluid phase that is orientationally anisotropic in three directions and also exhibits translational order with periodicity several times larger than the molecular size. N_{tb} materials may also spontaneously form a visible, macroscopic stripe texture. We show that the optical stripe texture can be persistently inhibited by a magnetic field, and a 25T external magnetic field depresses the N-N_{tb} phase transition temperature by almost 1{∘}C. We propose a quantitative mechanism to account for this shift and suggest a Helfrich-Hurault-type mechanism for the optical stripe formation.

UI MeSH Term Description Entries
D008956 Models, Chemical Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Chemical Models,Chemical Model,Model, Chemical
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D044366 Transition Temperature The temperature at which a substance changes from one state or conformation of matter to another. Temperature, Transition,Boiling Point Temperature,Freezing Point Temperature,Melting Point Temperature,Boiling Point Temperatures,Freezing Point Temperatures,Melting Point Temperatures,Temperature, Boiling Point,Temperature, Freezing Point,Temperature, Melting Point,Temperatures, Boiling Point,Temperatures, Freezing Point,Temperatures, Melting Point,Temperatures, Transition,Transition Temperatures
D050866 Liquid Crystals Materials in intermediate state between solid and liquid. Liquid Crystalline Materials,Mesomorphous Phase Materials,Crystal, Liquid,Crystals, Liquid,Liquid Crystal,Material, Mesomorphous Phase,Materials, Mesomorphous Phase,Mesomorphous Phase Material
D060526 Magnetic Fields Areas of attractive or repulsive force surrounding MAGNETS. Magnetic Field,Field, Magnetic,Fields, Magnetic

Related Publications

P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
February 2024, Physical review. E,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
February 1989, Physical review. A, General physics,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
August 2013, Physical review. E, Statistical, nonlinear, and soft matter physics,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
July 2022, Physical review. E,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
April 2016, Chemphyschem : a European journal of chemical physics and physical chemistry,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
January 2015, Physical review letters,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
March 2014, Physical review. E, Statistical, nonlinear, and soft matter physics,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
April 2020, Chemphyschem : a European journal of chemical physics and physical chemistry,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
October 2019, Journal of visualized experiments : JoVE,
P K Challa, and V Borshch, and O Parri, and C T Imrie, and S N Sprunt, and J T Gleeson, and O D Lavrentovich, and A Jákli
June 1986, Physical review letters,
Copied contents to your clipboard!