The Laboratory for Exotic Phases and Electronic Materials investigates physical phenomena such as superconductivity, quantum magnetism, Mott insulators, quantum ferroelectrics, the quantum Hall effect, and multiferroics. These phenomena arise from quantum mechanical interactions between phonons and the electron's degrees of freedom, including spin, charge, and orbital states. The lab explores these phenomena through phase transition control using variables such as temperature, magnetic field, pressure, and chemical doping. It focuses on growing high-quality single crystals to study pure condensed phases, utilizing extreme environments such as cryogenic refrigerators (1.8 Kelvin + 50 mK) and ultra-high magnetic fields (14 Tesla or 60 Tesla) to induce phase transitions.

UNIST Laboratory for Exotic Phases and Electronic Materials(엑조틱 상 및 전자 물질 연구실)은 스핀, 전하, 오비탈과 같은 전자의 자유도와 포논 간의 양자역학적 상호작용으로 나타나는 초전도, 양자 자성, 모트 절연체, 양자 강유전체, 양자 홀 효과, 다강체 등의 물리적 현상을 연구한다. 온도, 자기장, 압력, 화학적 도핑 등의 변수를 이용한 상전이 제어를 통해 이러한 현상들을 탐구하며, 고품질 단결정 성장을 통해 응집상태를 연구하는 데 중점을 둔다. 상전이 유도를 위해 극저온 냉동기(1.8 Kelvin + 50 mK)와 초고자기장(14 Tesla 또는 60 Tesla)을 활용한다.

p-wave magnet in helimagnetic MnAu2 for versatile spintronic applications

Ferroelectric amplitude switching and continuous memory

Reversible Spin Splitting Effect in Altermagnetic RuO2 Thin Films

Tunneling Magnetoresistance in Altermagnetic RuO2-Based Magnetic Tunnel Junctions

Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb-Site Modified PbFe1/2Nb1/2O3

Charge ordered phases in IrTe2 revealed by coherent phonon spectroscopy

Low-temperature Dielectric Properties of BaZrO3 Single Crystal

Thermal Hall effects due to topological spin fluctuations in YMnO3

Polar Perturbations in Functional Oxide Heterostructures

Heterogeneous integration of freestanding bilayer oxide membrane for multiferroicity

Diagonal and off-diagonal thermal conduction with resonant phonon scattering in Ni 3 TeO 6

Reversibly controlled ternary polar states and ferroelectric bias promoted by boosting square-tensile-strain

Significant thermal Hall effect in the cobalt Kitaev system

Pressure-dependent structure of BaZrO 3 crystals as determined by Raman spectroscopy

국내 단결정 연구그룹의 최신 연구동향

Persistence of Ising-like easy-axis spin correlations in the paramagnetic state of the spin-1 chain compound NiTe 2 O 5

Room-temperature multiferroicity in NiFe 2 O 4 and its magnetoelectric coupling intensified through defect engineering

Control of magnetoelectric coupling in the Co 2 Y-type hexaferrites

Formation of buried superconducting Mo 2 N by nitrogen-ion-implantation

Control of structural disorder in spinel ceramics derived from layered double hydroxides

Unconventional critical behavior in the quasi-one-dimensional S = 1 chain NiTe 2 O 5

Mapping the structural transitions controlled by the trilinear coupling in Ca3-xSrxTi2O7

Effect of ceramic-target crystallinity on metal-to-insulator transition of epitaxial rare-earth nickelate films grown by pulsed laser deposition

Room Temperature Ferroelectric Ferromagnet in 1D Tetrahedral Chain Network

Anisotropy dependence of the fluctuation spectroscopy in the critical and gaussian regimes in superconducting NaFe 1-x Cox As single crystals

The direct observation of ferromagnetic domain of single crystal CrSiTe 3

Enhanced self-biased magnetoelectric coupling in laser annealed Pb(Zr,Ti)O 3 thick film deposited on Ni foil

Giant magnetoelastic spin-flop with magnetocrystalline instability in La 1.4 Sr 1.6 Mn 2 O 7

Magnetic properties of Sr 3 NiIrO 6 and Sr 3 CoIrO 6 : Magnetic hysteresis with coercive fields of up to 55 T

Ambipolar Transport and Magneto-resistance Crossover in a Mott Insulator, Sr 2 IrO 4

Magnetoelectric coupling through the spin flop transition in Ni 3 TeO 6

Successive magnetic-field-induced transitions and colossal magnetoelectric effect in Ni 3 TeO 6

Multiferroicity in Doped Hexagonal LuFeO 3

Interlocked chiral/polar domain walls and large optical rotation in Ni 3 TeO 6

Experimental demonstration of hybrid improper ferroelectricity and presence of abundant charged walls in (Ca,Sr) 3 Ti 2 O 7 crystals

Hierarchical stripe phases in IrTe 2 driven by competition between Ir dimerization and Te bonding

Novel Physical Properties of Multiferroics with Strong Magnetoelectric Coupling

Color Theorems, Chiral Domain Topology, and Magnetic Properties of Fe x TaS 2

Multiferroicity with coexisting isotropic and anisotropic spins in Ca 3 Co 2−x Mn x O 6

Non-hysteretic colossal magnetoelectricity in a collinear antiferromagnet

Hysteretic Melting Transition of a Soliton Lattice in a Commensurate Charge Modulation

MnSb 2 O 6 : A Polar Magnet with a Chiral Crystal Structure

Delicate balance between ferroelectricity and antiferroelectricity in hexagonal InMnO 3

X-ray imaging and multiferroic coupling of cycloidal magnetic domains in ferroelectric monodomain BiFeO 3

Giant Magnetic Fluctuations at the Critical Endpoint in Insulating HoMnO 3

Ferroelectric Switching Dynamics of Topological Vortex Domains in a Hexagonal Manganite

Anionic Depolymerization Transition in IrTe 2

Raman study of the phonon symmetries in BiFeO 3 single crystals

Intrinsic ferroelectric polarization of orthorhombic manganites with E-type spin order

High carrier mobility in transparent Ba 1-x La x SnO 3 crystals with a wide band gap

Electric Field Control of Nonvolatile Four-State Magnetization at Room Temperature

Charge-Orbital Density Wave and Superconductivity in the Strong Spin-Orbit Coupled IrTe 2 :Pd

Concurrent transition of ferroelectric and magnetic ordering near room temperature

Mechanism of the Switchable Photovoltaic Effect in Ferroelectric BiFeO 3

Strong magnetoelastic effect on the magnetoelectric phenomena of TbMn 2 O 5

NMR study on the stability of the magnetic ground state in MnCr 2 O 4

Quantitative determination of anisotropic magnetoelectric coupling in BiFeO 3 –CoFe 2 O 4 nanostructures

Evidence of a universal and isotropic 2delta/kB Tc ratio in 122-type iron pnictide superconductors over a wide doping range

Determination of the intrinsic ferroelectric polarization in orthorhombic HoMnO 3

Realization of giant magnetoelectricity in helimagnets

Observation of a multiferroic critical end point

Vortex-glass Phase Transition and Superconductivity in an Under-doped (Ba,K)Fe 2 As 2 Single Crystal nanostructures

Josephson effect between electron-doped and hole-doped iron pnictide single crystals

Low-magnetic-field control of dielectric constant at room temperature realized in Ba 0.5 Sr 1.5 Zn 2 Fe 12 O 22

Electric Polarization Enhancement in Multiferroic CoCr 2 O 4 Crystals with Cr-site Mixing>

Observation of the Josephson Effect in Pb/Ba 1-x K x Fe 2 As 2 Single Crystal Junctions

Temperature Dependence of the Flux Jump Upper Threshold Field in MgB 2 Thin Films

Hall Effect Signatures of Electronic Structure Change near a Field Induced Quantum Critical Point in U(Ru 1-x Rh x ) 2 Si 2

Intrinsic Anomalous Hall Conductivity of GaMnAs Solely Governed by the Carrier Concentrations

Pulsed Laser Deposition of SrRuO 3 Buffers for Coated Conductor Applications

Structural and Electrical Properties of SrRuO 3 Thin Films for Buffer Layers of Coated Conductors

Experimental demonstration of hybrid improper ferroelectricity and the presence of abundant charged walls in (Ca,Sr)3Ti2O7 crystals

Charge-Orbital Density Wave and Superconductivity in the Strong Spin-Orbit Coupled

High carrier mobility in transparent Ba1− xLaxSnO3 crystals with a wide band gap

Electric field control of nonvolatile four-state magnetization at room temperature

Magnetoelectric effects of nanoparticulate Pb (Zr0. 52Ti0. 48) O3-NiFe2O4 composite films

Observation of the Josephson Effect in Single Crystal Junctions

Anionic Depolymerization Transition in

Ferroelectric switching dynamics of topological vortex domains in a hexagonal manganite

X-Ray Imaging and Multiferroic Coupling of Cycloidal Magnetic Domains <?format ?>in Ferroelectric Monodomain

Successive Magnetic-Field-Induced Transitions and Colossal Magnetoelectric Effect in Ni3TeO6

Multiferroicity in doped hexagonal LuFeO3

Quantitative determination of anisotropic magnetoelectric coupling in BiFeO3–CoFe2O4 nanostructures

Interplay between Carrier and Impurity Concentrations in Annealed : <?format ?>Intrinsic Anomalous Hall Effect

Intrinsic ferroelectric polarization of orthorhombic manganites with -type spin order

eXotic Phase Transition in Quantum Materials Lab

교수님 소개

오윤석

연구실 소개

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Reversible Spin Splitting Effect in Altermagnetic RuO2 Thin Films

Tunneling Magnetoresistance in Altermagnetic RuO2-Based Magnetic Tunnel Junctions

Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb-Site Modified PbFe1/2Nb1/2O3

연구실 보유 특허

대학별 입시끈

우리 연구실 모집

교수님 소개

오윤석

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Reversible Spin Splitting Effect in Altermagnetic RuO2 Thin Films

Tunneling Magnetoresistance in Altermagnetic RuO2-Based Magnetic Tunnel Junctions

Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb-Site Modified PbFe1/2Nb1/2O3

연구실 보유 특허

최근 3년간 연구실적 높은 연구실

대학별 입시끈

우리 연구실 모집